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E20-585 - Data Domain Specialist Exam for Storage Administrators - BrainDump Information

Vendor Name : EMC
Exam Code : E20-585
Exam Name : Data Domain Specialist Exam for Storage Administrators
Questions and Answers : 66 Q & A
Updated On : April 23, 2019
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E20-585 Data Domain Specialist Exam for Storage Administrators

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E20-585 exam Dumps Source : Data Domain Specialist Exam for Storage Administrators

Test Code : E20-585
Test Name : Data Domain Specialist Exam for Storage Administrators
Vendor Name : EMC
Q&A : 66 Real Questions

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EMC Data Domain Specialist Exam

SA mid-market to get commercial enterprise-grade information coverage, backup

the advent of the brand new Dell EMC integrated statistics coverage appliance DP4400 is determined to remedy complications for ratings of small and mid-sized organisations in South Africa, says Egideon Bands, CEO of DataGr8.

DataGr8, expert in archive, storage enablement, storage migrations, commercial enterprise functions and safety solutions, expects the new Dell EMC built-in information equipment DP4400 to convey a whole new dimension to facts backup and information insurance plan for local small and mid-sized agencies.

The new Dell EMC Integrated Data Protection Appliance DP4400; simply powerful data protection at the lowest cost-to-protect.

the new Dell EMC built-in data coverage appliance DP4400; effortlessly effective data insurance policy on the lowest cost-to-offer protection to.

"now we have handiest just began demonstrating the new appliance to shoppers, and the response has been very wonderful," he says. "It grants what it guarantees: with no trouble effective statistics insurance plan on the lowest charge-to-give protection to."

"establishments these days, mainly mid-sized groups, face loads of complexity in managing greater records, software diversity, extra clients, and the deserve to do more with less," says Bands. "Our fields of specialisation, backup, records healing and safety are also issues that add to the complexity during this ambiance. Now, as an alternative of getting to buy, combine and manage a lot of disparate systems, shoppers can simplify the environment at a decrease cost in a single kit."

the new Dell EMC built-in records insurance policy appliance DP4400 is properly packaged and brings spectacular business grade elements to the mid-measurement marketplace for the primary time, he says.

the new appliance, now being demoed to customers in Gauteng through Axiz, in partnership with DataGr8, is a converged, integrated records insurance policy equipment providing complete backup, deduplication, replication, recovery, along with cloud readiness and catastrophe recovery, in one effortless 2U Dell EMC PowerEdge 14G server platform.

"It combines coverage storage and software, search analytics and cloud readiness in a single appliance, so it's unique in what it presents mid-sized and smaller organizations," says Bands. "it's effortless to set up and scale up, offers them commercial enterprise-grade backup capabilities, and the analytics elements permit them to consider how their backups are performing.

since it's so strange available in the market, the charge of the appliance cannot be in comparison with different devices, but for the storage and range of facets it delivers, it's doubtless 30% to 40% cheaper, as well as a ways more convenient and greater potent, than options," Bands says. He believes the Dell EMC integrated records insurance policy appliance DP4400 is especially compelling in that it shortens backup windows by way of up to two instances, and can provide up to twenty% extra potential in a 2U equipment, with an ordinary expense of fifty five:1 deduplication. "With this variety of deduplication expense, you in reality get an awful lot extra storage than you pay for," he says.

Bands also believes the brand new equipment overcomes local disaster recovery headaches, through its native cloud tier for long-term retention, which can offer protection to as much as 14.4PB of statistics, and efficient and cost effective native cloud catastrophe healing to Amazon AWS.

"in its place of having a 2nd gadget offsite, customers can now take any facts area and replicate it to any cloud provider, and the nice thing is they simplest pay for storage, no longer reminiscence. they can obtain failover with three clicks and failbacks with two clicks, with out wanting extra hardware. customers are very excited concerning the new equipment," he says.

The IDPA DP4400 grants the business's lowest charge-to-protect, costing as much as eighty% much less to give protection to and maintaining 4 instances greater facts in one 2U appliance, with a 55:1 statistics coverage deduplication guarantee and three-year delight assure.

To register for a arms-on demonstration of the IDPA DP4400's capabilities, please click on here.

the way to Do Stateless Compute, Clustered Storage Like A Hyperscaler

there are such a lot of companies that claim that their storage methods are impressed by means of those that were created by the hyperscalers – mainly Google and facebook – that it is difficult to keep song of them all.

but when we had to bet, and we do because the search engine gigantic has under no circumstances revealed the nitty gritty on the hardware architecture and software stack underpinning its storage, we'd challenge that the groundwork of the current Google File gadget and its Colossus successor looks lots like what storage upstart Datrium has eventually, after decades of building, dropped at market for the rest of us.

we might guess additional that the relationship between compute and storage on Google’s infrastructure appears very tons like what Datrium has put along side the third generation of its DVX stack, which is, by using necessity and by means of nature, a platform in its own appropriate.

it is hard to assert for certain, of course, as a result of groups like Google may also be secretive. whereas loads of hyperconverged server-storage suppliers such as Nutanix with its commercial enterprise Computing Platform declare their inspiration got here from Google, we don’t believe that Google makes use of a stack anywhere as complex as the hyperconverged server-SAN half-bloods, and the individuals from server virtualization juggernaut VMware and storage archiving expert statistics domain, which changed into obtained via EMC in 2009 and which is now part of Dell, who begun Datrium in 2012 and who've raised $one hundred ten million in 4 rounds of funding since that point to commercialize their ideas about converging basic and backup storage whereas additionally disaggregating compute from a number of levels of storage and making the entire shebang cheaper and less difficult to manage.

“you are going to locate, that in case you know people at Google, they've had separated compute and statistics nodes for a long time, and the equal is correct of fb, Amazon, and so forth,” Brian Biles, CEO at Datrium, tells The next Platform. “And the purpose is that at scale you ought to operate that means because the rebuild times on storage are only ridiculous, and that they have allotted erasure coding for facts insurance plan and the device is optimized for low latency I/O because of loads like Gmail. They additionally optimize for primary renovation of their nodes. and you may even see it with Amazon with their services, where you keep to example flash but you persist in an object keep it really is separate. here is the same model, however is just made inner most.”

Biles co-centered Datrium Hugo Patterson, who become the chief architect and then CTO at records area and who earlier than that changed into a member of the technical body of workers at network-connected storage pioneer NetApp. Boris Weissman is additionally a co-founder, and was prior to now a Java engineer at sun Microsystems, a technical lead at LoudCloud, the cloud startup whose manage device turned into productized as OpsWare and which turned into acquired by using Hewlett Packard business again in 2007 for $1.6 billion, after which a main engineer at VMware working on the core hypervisor for over a decade. Sazzala Reddy, a primary architect at EMC and facts area, and Ganesh Venkitachalam, who turned into a principal engineer at VMware and IBM, circular out the business’s founders. They understand a thing or two about server virtualization and storage virtualization.

Datrium DVX embodies the entire superior ideas they have got, and it's diverse from the hyperconverged storage obtainable available on the market in some vital methods. The explanation why we're citing Datrium now, in spite of the fact that it is five years ancient, is that the business’s hybrid compute-storage platform is now attainable at petascale, which it turned into not before. Let’s discuss what DVX is first after which the way it is distinctive from other hyperconverged storage.

Like many modern converged infrastructure, DVX runs on commodity X86 servers the use of a mix of flash and disk storage and common Ethernet networking to lash together nodes in a cluster. The DVX stack is constructed from compute nodes and statistics nodes, and both can, in idea, be according to any time of server customers prefer, with as many or as few sockets as they want. For now, Datrium is letting customers prefer their personal compute nodes but is designing its own selected records nodes. The compute nodes are equipped with processors and leading reminiscence and have high-speed flash on them, and the combination of the two gives a place the place functions and their hottest information run. most effective energetic records is saved on the compute nodes, and anything else that has to be endured is pushed out to the statistics nodes over the network. Importantly, the compute nodes are stateless, meaning they don't confer with each other or rely upon every different in any way and the storage is additionally no longer based or tough-wired to them in any approach.

The compute nodes are customarily according to two-socket Xeon servers at the moment, and they can support VMware ESXi or purple Hat KVM hypervisors as a virtualization abstraction layer and can also run Docker containers on the naked steel if customers need to be truly Google-like. both crimson Hat commercial enterprise Linux 7.three and the cheaper CentOS 7.three choice are supported, incidentally, and the VMware stack can guide Docker containers inner of the VMs if valued clientele want to do that and nodes working KVM can additionally guide containers atop KVM. The naked metal Docker 1.12 stack runs with RHEL or CentOS. Importantly, the compute nodes, no longer the records nodes, run its storage stack, which comprises allotted erasure coding for facts protection as well because the de-duplication and facts compression applied sciences that statistics domain helped advance and commercialize a decade in the past.

Biles isn't revealing the entire feeds and speeds on the records node, however is a twin-controller OEM disk enclosure in line with a modest X86 processor with some NVRAM packed in to persist a copy of the scorching statistics on the compute hosts and to front end a dozen 7,200 RPM SATA disks that give the raw persistent potential. Biles jokes that this enclosure has simply ample oomph to power the disks, which at a hundred MB/sec of bandwidth for every pressure is barely satisfactory to saturate a 10 Gb/sec Ethernet link. each information node uses inexpensive four TB disk drives, for a complete raw potential of 48 TB for the enclosure and in spite of everything of the de-duplication and compression works on the facts and after the overhead of erasure coding is taken out, there is set one hundred TB on the facts node. This, rather frankly, is not a balance set of compute and statistics, and the Datrium folks knew that.

So for the past a number of years, they've been perfecting a large erasure coding method that can distribute records chunks evenly across a pool of records nodes that have been networked together, and adapting the de-duplication pool so it spans assorted records nodes. many of the code for this updated erasure coding and de-duplication stack runs on the compute nodes, no longer the records nodes, so there isn't any intent to want very hefty statistics nodes as is the case with a lot of hyperconverged storage. And equally importantly, that world object storage pool that underpins the DVX stack lets every compute node spread its statistics across the compute nodes in a stateless style so none of the compute nodes are stylish on the other for entry to their persistent data. this is what Datrium calls cut up provisioning.

The upshot is that the DVX platform now presents the capability to independently scale compute and storage, and with probably the most contemporary 3.0 liberate, it could possibly scale both a great deal future. within the initial release that has been delivery on account that early final year, the compute cluster may scale to 32 nodes, but they simplest shared one facts node. This changed into severely limiting on the use cases. however beginning with this replace, the compute can scale to 128 nodes, with one, two, 4, or eight sockets each and every purchasers opt for, and the information nodes can scale to ten within the storage cluster.

all of the elements of the DVX stack will also be linked the use of modest and mud inexpensive 10 Gb/sec Ethernet adapters and switches on the nodes, but in some situations, lower latency or higher bandwidth switching may aid. It name comes down to situations. Biles says that help for 25 GB/sec and 40 Gb/sec is coming within the near future.

With the increased DVX stack, the facts nodes can scale to as much as 1 PB of beneficial means, and importantly for business customers, handle up to 1.2 million concurrent snapshots of datasets.

This snapshotting is a component of the backup and insurance policy that's built-in into the DVX stack, and it is one of the the reason why customers who're used to having primary records storage and backup storage (some thing just like the digital tapes on disk arrays that information area created) will spend a great deal less cash in the event that they just have a single stack with snapshots for cloning data and erasure coding for spreading the data out for efficiency and excessive persistence.

these 128 compute nodes can crank via 200 GB/sec of reads off of the storage nodes, and in aggregate they can procedure 18 million IOPS in opposition t the local flash on their nodes, which in turn pull records off the disk nodes when mandatory.

here is the performance profile of the DVX cluster as it scales in comparison to that of a typical all-flash array, based on Datrium:

The write efficiency of the DVX stack scales with the variety of information nodes and, to a certain extent, to the NVRAM this is within the enclosure. right here is how Datrium says the DVX clusters examine to EMC’s XtremIO clustered flash arrays.

The vital issue to word here is that Datrium is getting the identical or greater efficiency on reads and writes as all-flash arrays the usage of a mixture of DRAM and flash on stateless compute nodes and NVRAM and disks on statistics nodes. Now we remember why Google is so excited about advancing the state of the art of disk know-how. if you need exabytes of ability, as hyperscalers do, you could’t find the money for to head all flash. businesses, which have relatively modest datasets and sometimes have no greater than a couple of petabytes, can try this. And, because the revenue of Pure Storage and different all-flash array makers demonstrates, here is precisely what they are doing. It is simply humorous that probably the most superior groups on earth haven't any alternative but to keep a technology it is sixty years old already alive for another decade.

That leaves us with explaining how this type of primary convergence is distinct from hyperconvergence.

firstly, the compute nodes are completely stateless, and that capability that applications running on one node can be remoted from these on the different. they are remoted from each other’s faults and crashes and not woven right into a single compute cloth. The machines can also be of distinctive kinds and for this reason the performance necessities of the utility will also be matched to the hardware. here is no longer the case with hyperconverged stacks, which are typically homogeneous. 2nd, as a result of storage is broken from compute in a stateless manner, there's fault isolation between the compute and data nodes. With hyperconverged utility, if a node goes down, it is an issue for the entire cluster as that node’s facts is restored. The other unique change is that the hyperconverged stacks out there deserve to be in an all-flash configuration, which will also be very costly, for de-duplication, compression, and other information reduction concepts to work at a suitable performance, however Datrium’s DVX can do it on a mix of flash, NVM, and disk. and at last, hyperconverged stacks tie compute to storage inside a node, and you'll’t scale up one devoid of the other. (here is whatever thing the hyperconvergers need to repair.)

the two DVX components for compute and storage are bought and priced one by one, and given the proven fact that they scale independently this makes experience. The application for the compute nodes cost $12,000 per server, and the records node fees $ninety four,000 every. So a accurate-conclusion cluster with 128 nodes could charge $25,000 for a hefty server node with lots of cores, RAM, and flash plus yet another $12,000 for the DVX compute software, or $4.74 million throughout the compute infrastructure with possibly 7,200 cores and as many digital machines and ten instances as many containers, with terabytes of memory and tens of terabytes of flash. The ten records nodes, you're talking an extra $940,000 moreover that, and after some modest discounting, you might get it occupied with probably 25 % off or around $four million. That assumes using open supply software, and including industrial ESXi or KVM would balloon this can charge much more. nonetheless, that is a great deal much less high priced than buying fundamental flash and disk inside of compute nodes and then having to purchase a separate petascale category backup array.

a corporation like Google can get its iron for half that cost, however has to create its own application, and that's now not free, both, besides the fact that it is fun. imagine what a hundred,000 nodes, like the hyperscalers put into one datacenter, actually expenses with all the hardware, application, and individuals fees utterly burdened.

Why I.B.M. Took a unique path in Storage

10:38 a.m. | up-to-date to correct the name of the business that EMC bought remaining yr.

The high-stakes sumo fit between Hewlett-Packard and Dell ended on Thursday, with H.P. paying about $2.3 billion for 3Par.

I.B.M. has observed it checked out 3Par and different companies greater than two years ago, when it changed into build up in the field of clustered storage, a crucial know-how in coping with information remotely for so-referred to as cloud computing techniques. instead of 3Par, it bought an Israeli clustered-storage professional, XIV.

I.B.M. did not document the price tag on XIV. however analysts estimate it probably paid under $200 million for a company that now generates extra revenue than 3Par’s salary of $194 million last 12 months.

I.B.M. will now not comment on these estimates, however it does element to the XIV deal for example of how its analysis labs are used to notify the company’s merger, acquisition and divestiture method.

in reality, big Blue’s storage business has been bolstered by a collection of early-stage purchases in the sector over the final couple of years, including Arsenal Digital, Storwize and Diligent. I.B.M. has no longer gotten within the center of pricey bidding wars just like the one over 3Par or over information domain, which EMC bought ultimate 12 months for $2.four billion, after beating out NetApp.

The labs, explains Robert Morris, a vp of I.B.M. analysis, give strategic “headlights” for the company as an entire. on the conclusion of each and every yr, the lab researchers prepare a worldwide technology outlook, which items senior administration with an evaluation and predictions about key applied sciences over the arrival a couple of years.

As a senior analysis manager, Mr. Morris additionally meets with members of I.B.M.’s M.&A. groups 4 instances a 12 months. “It’s no longer sufficient to look sooner or later, you need to act,” he pointed out. “in case you’re ahead of the game, that you could go in and get companies at an excellent rate, earlier than others appreciate the value.”

The researchers, Mr. Morris provides, be taught issues from the I.B.M. acquisition teams as well. “They’ll say, ‘have you ever seen this little company?’ ” he observed. “They’re like sensors within the marketplace. We improve plenty interior I.B.M., but most innovation is going on backyard any single business.”

An previous edition of this post misstated the identify of the business that EMC bought last year. it's statistics domain, no longer Digital area.

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Data Domain Specialist Exam for Storage Administrators

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EMC Data Domain DD2200 Review (DD Boost for SQL)

October 31st, 2014 by StorageReview Enterprise Lab

The EMC Data Domain DD2200 is a deduplication appliance for backup and archive data that is designed for small to midrange data centers. A recent addition to the Data Domain line, the DD2200 consolidates backup, archive, and disaster recovery into one easy-to-manage 2U rack unit platform. The device is offered in two configurations: either a 7 drive system with 7.5TB of usable space or a 12 drive system with 17.2TB of usable space. The DD2200 supports up to 4.7TB per hour throughput and can support up to 860TB of logical capacity via expansion shelves. 

The EMC DD2200 includes Data Domain System Manager, and integrates with leading backup, archive, and enterprise applications. Wide application support is a key feature for Data Domain, customers may use EMC products like NetWorker for instance, or they may use offerings from VMware, Symantec, Veeam, CommVault and many others. Data Domain interfaces over Ethernet (CIFS or NFS) and Fibre Channel. FC connectivity brings with it VTL support and optional DD Boost. Data Domain systems also support replication for disaster recovery, sending only compressed changes over the wire. Other highlights include inline encryption of data at rest and secure retention for archive data, which satisfies compliance concerns. 

Mentioned above, DD Boost is a big differentiator for Data Domain. Essentially, DD Boost integrates with key enterprise software packages, both backup and application, to streamline the backup process to improve performance. DD Boost works by distributing parts of the deduplication process to a backup server or application client so only unique data segments get sent to the Data Domain System. This results in up to 50% faster backups that use less bandwidth and system resources. DD Boost is available now for backup applications from EMC, Dell, Symantec, HP and VMware (Veeam will be supported in v8). On the enterprise application side, DD Boost supports IBM DB2, SQL Server, Oracle, Pivotal and SAP HANA. 

The EMC Data Domain DD2200 system comes with a 1-year hardware only, limited warranty and starts at $20,000 (DD Boost licenses are not included). Our review configuration is with 12 drives and testing centers around the system configured for SQL Server backups with DD Boost.

EMC Data Domain DD2200 specifications:

  • Maximum throughput: 3.5TB/hour
  • Maximum throughput (DD Boost): 4.7TB/hour
  • Logical capacity:
  • Standard: 172TB
  • Redundant: 860TB
  • Max usable capacity: up to 17.2TB
  • Drive type: SAS
  • Built-in networking: 1 x Management port; 4 x 1GbE ports
  • Optional networking with IO cards:
  • Up to 8x 1GbE
  • Up to 4x 10GbE
  • Up to 8x 10GBase-T
  • Up to 4x 8Gb FC
  • Physical:
  • Weight: 7 HDDs: 65 lbs./12 HDDs: 73 lbs.
  • Dimensions (2U EIA rack units): 19" x 29" x 3.5"
  • Environmental:
  • Power:
  • 100-120/200-240 V ~, 50/60 Hz
  • 7 HDDs 406 VA
  • 12 HDDs 502 VA
  • Thermal Rating (Watts):
  • Thermal Rating (BTU/hour):
  • 7 HDDs 1,344
  • 12 HDDs 1,662
  • Operating Temperature/Altitude: 10°C to 35°C, 35°C at 7,500 feet
  • Non-Operating (Transportation) Temperature: -40°C to +65°C (-40°F to +149°F)
  • Operating Humidity: 20% to 80% non-condensing
  • Operation Acoustic Noise (Sound Power): LWAd: 7.2 bels
  • Operation Acoustic Noise (Sound Pressure): LpAm: 65 db
  • Design and build

    The EMC Data Domain DD2200 is a 2U rackmount appliance. Like many EMC products, the DD2200 offers a large front bezel, with prominent EMC branding, as well as slots for cooling air to be drawn through and a handy lock to prevent access to HDDs to the front of the unit. Underneath the front bezel are 12 3.5" HDD bays, which in our unit is populated with 2TB drives. Each drive bay has its own drive power/status light, which shows which drives are powered up and if any has a problem to easily located it for replacement. Our DD2200 storage configuration consists of a RAID6 pool over 11 drives, with one drive left as a hot spare.

    Going around to the back of the device, users can access the two power supplies on the right hand side. The bottom row of ports includes four 1GbE interfaces for LAN connectivity, a serial console port, USB as well as another management interface. Along the top row EMC includes multiple bays for expansion modules for different optional interfaces. Our configuration included two modules which offered dual 10GbE Twinax connections each. Optional modules include support for a wide range of network types including both Ethernet and Fibre Channel. The DD2200 also includes battery packs internally to protect data in the event of a power loss. 

    The view from inside the EMC Data Domain 2200 is very clean, and shows one high-end enterprise feature you generally don't see in small or mid-market products. The backup battery seen in the middle of the photo near the side of the chassis provides enough power to safely commit all data stored in DRAM to disk and safely shutdown the system to prevent any data loss or array corruption.


    Data Domain System Manager is an easy-to-use web-based management system. A configuration wizard takes users through the initial setup and deployment. Once set up, users can monitor the DD2200 through the dashboard. Running along the side of the dashboard are a few tabs to monitor health, capacity, replication, reports, administration, and inventory.

    Once logged into the DD System Manager, users can find a wealth of information on their DD2200. For overall component health information, EMC provides a handy section that when you mouse over certain components you get a readout of current status, temperatures and other information. In the view shown, we see that the internal battery is at 100% charge.

    Drilling into the Data Management section users can view the total available capacity and what is currently used. After the course of an early testing session we see that out of 15.66TB usable we have consumed 0.42TB. Pre-compression that data would fill up 2.37TB, but the DD2200 has been able to provide a 5.6x data reduction factor to minimize the footprint of that particular backup group.

    Inside Data Management you can create CIFS shares, pointing to locations inside the file system. This section is where you go when changing permissions on a given share, including which IP addresses are allowed to access it as well as different users.

    Similar to the CIFS management section, the DD Boost menu lets you set allowed clients, look at active users, setup different fabrics for access and a number of other items. For our testing we configured a single 10G Twinax port as an allowed access connection to our DD Boost backup storage.

    While it wouldn't be used as frequently as other sections, the Hardware storage section allows you to view the status of the DD2200's storage configuration. In this section we see our RAID6 storage pool using 11 disks, with 1 left over as a hot-spare.


    We publish an inventory of our lab environment, an overview of the lab's networking capabilities, and other details about our testing protocols so that administrators and those responsible for equipment acquisition can fairly gauge the conditions under which we have achieved the published results. To maintain our independence, none of our reviews are paid for or managed by the manufacturer of equipment we are testing.

    The DD2200 is being tested in our SQL Server 2012 environment, although unlike most of our performance tests that measure TPC-C performance, this one looks at backup performance while leveraging our benchmark to create change within a given database. For this side by side comparison, we use both SQL Server's internal CIFS backup as well as with DD Boost for SQL. DD Boost for SQL, like other DD Boost implementations, does a few things. First, it offloads much of the data reduction process to the SQL Server from the Data Domain appliance. The core benefit is that since deltas are managed at the SQL level (and better than what SQL can do on its own), less data gets passed to the Data Domain. This means iterative backups are smaller and faster, leading to improved Data Domain speed and efficiency, while giving it more headroom to handle additional backup duties. The server-side reductions also decrease load on the network. DD Boost for SQL gives the application owner direct control of their backups to Data Domain. Configuration takes place in Microsoft SQL Server Management Studio, reducing reliance on the backup administrator if the organization has one. 

    DD Boost for Microsoft SQL supports both Ethernet IP and Fibre Channel, so it works well within a variety of environments. We tested the DD2200 leveraging SQL Server 2012, showing the benefits of DD Boost versus CIFS over both 10GbE and 1GbE. For our CIFS tests we used the native backup support built into SQL Server. In both configurations we used 4 streams to maximize the bandwidth across each interface. Each of the 1GbE and 10GbE test routines includes seven runs. The first is a full SQL back up job. Runs 2-4 are full backups with no changes to the database. The fifth run is a backup after the TPC-C benchmark runs, essentially causing wholesale changes to the underlying SQL database. The last runs again reflect no database changes. 

    In the first test measuring CIFS vs. DD Boost over 10GbE, we see a dramatic decrease in the time for the first full backup leveraging DD Boost over SQL Server's native backup scheme. This advantage stays at roughly 2x the for the duration of the test intervals.

    Comparing CIFS vs. DD Boost over 1GbE the difference is much more profound, where host-side deduplication has an enormous benefit. With lower bandwidth being the primary bottleneck, DD Boost for SQL Server is able to finish 2.35x quicker over standard CIFS in the first full backup. In the next interval moving to no change rate, the DD Boost is able to finish 4.74x quicker with a backup window of 9 minutes compared to 43 minutes over CIFS. During both backups the 1GbE network interface was completely saturated. Of course this impact scales as backup size increases, meaning a backup administrator can shorten the backup window while also freeing bandwidth for other purposes.


    The EMC Data Domain DD2200 is a highly capable backup storage system with compression and deduplication features targeting small to midrange data centers. While the maximum usable capacities run from 7.5TB for the 7-drive and 17.2TB for the 12-drive systems, the DD2200 can scale up to address up to 860TB of logical space post compression/dedupe. A key selling point with Data Domain are the software integrations like Data Domain Boost, which leverages host-side deduplication to shrink backup windows and lower network bandwidth consumed.

    In our tests we positioned the DD2200 as a backup appliance in our Microsoft SQL Server 2012 environment. Measuring the performance of SQL Server's native backup performance over CIFS, we compared that to the DD2200 with DD Boost package installed. Our test consisted of timing seven full backup runs to see how the DD2200 performed with and without Boost over 1GbE and 10GbE fabrics. The net result is that we saw a dramatic difference using DD Boost bringing a 2x backup decrease over our 10GbE network and a 4x decrease over our 1GbE network. The benefits, especially in the 1GbE environment, cannot be understated. The SQL backups were essentially saturating the network in the case if the 1GbE testing, meaning anything else trying to occur on that network at the same time would suffer. DD Boost dramatically reduced the network load making the backup window shorter, but also freeing up infrastructure resources for other work. 

    On its own the DD2200 gives EMC channel partners a great little dedupe appliance to put to work in smaller customer environments or as part of ROBO environments where the enterprise may want replication to the home office. EMC is also wisely bundling the DD2200 with their updated VNXe3200, which addresses primary storage needs for the same audience. Between the two, a small operation can get an impressive amount of performance and data security features in just a few rack U. 


  • DD Boost offers huge backup window gains in 1GbE and 10GbE environments
  • Complete enterprise feature set brought down to the midmarket
  • Great plugin to larger DD environments for ROBO
  • DD Boost for SQL easy to implement
  • Cons

  • Scale up architecture means new head unit if backup demands grow faster than expected
  • Bottom Line

    The EMC Data Domain DD2200 is a 2U deduplication appliance aimed at small to midrange data centers. In our testing with DD Boost For SQL, the results were very impressive especially in environments constrained to a 1GbE fabric. We saw a 4x improvement in backups across 1GbE, dramatically shortening the backup window while also relieving infrastructure stress.

    EMC Data Domain DD2200

    Discuss This Review

    Enterprise Backup and Recovery Management

    Data storage backups seem like a simple enough way of protecting valuable business data against accidental erasure, application crashes, server mishaps, ransomware and the countless other ways data winds up irretrievable. IT leaders soon discover that managing a comprehensive data protection strategy involves much more than pointing a backup solution to a storage target.

    It often involves an exhaustive examination of available tools, thorough planning and a data recovery strategy that delivers on all that hard work.

    Here's where to start and the critical journey toward effective enterprise backup and recovery management.

    Jump to:

    https://o1.qnsr.com/log/p.gif?;n=203;c=204660761;s=10655;x=7936;f=201812281257540;u=j;z=TIMESTAMP;a=20400368;e=i Business Data Backup Options

    One of the most critical choices businesses face is whether to perform full, incremental, differential or synthetic full backups. Settling on one or a combination of the four will depend on an organization's requirements.

    Full Backups: These offers the ultimate in data protection by backing up the entirety of a system's files and folders. Everything is stored as part of a set, so keeping track of backups is a pretty straightforward affair. On the downside, this approach often takes a toll on storage and bandwidth, not to mention the time it takes to run a full backup.

    Incremental Backups: These contain the files that have been added or changed since the last full or incremental backup. This allows for shorter backup windows and typically requires less storage space since it builds upon an existing backup. One disadvantage of using this method is that it takes longer to restore data from an incremental backup since it requires a full backup and subsequent incremental backups to retrieve the desired data.

    Differential backups: Differential and incremental backups may sound similar, but they serve different purposes. Differential backups will contain files that have changed since the last full backup, an approach that saves storage space since only a full backup and the last differential backup is required for restoring data, versus a full backup and multiple incremental backups.

    Synthetic backups: Finally, synthetic full backups are typically used in situations with tight backup windows. It takes data from a full backup and incremental backups to create another full backup, blending the benefits of each backup type, namely completeness and lower resource impact, respectively.

    Backup and Restore: An Implementation and Strategy

    Now it's time to create a corporate backup and recovery management plan.

    As with any major IT endeavor, there's little hope of getting an effective strategy off the ground without understanding your current IT infrastructure.

    Requires more than a basic inventory: A good plan will take into account the role that each system plays during the course of doing business by order of importance, helping IT departments align their resources and budgets accordingly. This typically require consulting with executives and business units outside of the IT department.

    Understand your data volumes: Speaking of budgets, having a good grasp of the data volumes involved in backing up data will also have a big impact on how much your organization invests in backup solutions and storage capacity. Organizations must also weigh how often backups occur, which may differ from system to system. Chances are that a critical application server requires more frequent backups than a shared file repository that employees rarely use.

    Consider data retention periods. Data storage costs money, and the more of it that exists in an enterprise's IT systems, archival tapes and offsite storage facilities, the tougher it is to manage. In short, keeping data around indefinitely is unrealistic; ideally businesses will shed data as it loses value or is no longer needed.

    Compliance is central: But beware, businesses in regulated industries must also adhere to compliance requirements that demand they protect and hang onto data for specified periods of time, in addition to their own requirements. Again, it may be time to consult with other outside the IT organization, including your company's compliance officer.

    Backup and Recovery Management Tools and Vendors

    Once your plan begins to come into focus, it's time to explore the marketplace for vendors that can meet an organization's backup and restore objectives.

    Where to start: A good place to start is this list of the Ten Leading Data Backup Products. Each has its strengths and weaknesses, and many organizations will likely end up securing licenses and investing in systems from more than one provider.

    Sometimes, it's possible to find one vendor that ticks a lot of boxes for heterogenous IT environments. Acronis is one such vendor.

    "Acronis Backup provides protection for on-premises, remote systems, private and public clouds, and mobile devices. It is said to provide a 15-second Recovery Time Objective (RTOs)," wrote Drew Robb in his recent examination of enterprise backup options. "Features include virtual server protection for VMware vSphere, Microsoft Hyper-V, Citrix XenServer, Red Hat Virtualization, Linux KVM, and Oracle VM Server. Replication is provided via VMware vSphere Replication with WAN optimization. It can also backup Oracle databases with disk-imaging backup and bare-metal recovery."

    That's a wide net, but other leading backup vendors are similarly adept at handling a variety of backup workloads.

    Other products to consider include Arcserve UDP, BackupAssist, HYCU (formerly Comtrade HYCU), Commvault HyperScale, Data Domain Virtual Edition, Data Dynamics StorageX, IBM Cloud Object Storage System, Spectra Logic BlackPearl and Veritas NetBackup.

    Consider Cloud Backup and Recovery: Increasingly, enterprises are turning to cloud providers for backup and recovery services as a means of scaling back on costly on-premises backup storage investments and disaster recovery sites.

    Azure Backup and Azure Site Recovery is Microsoft's answer to this trend. Both Amazon Web Services (AWS) and Google Cloud Platform also enable cloud backup and restore operations via their respective cloud storage platforms.

    And of course, countless MSPs (managed storage providers), ISVs (independent software vendor) and storage vendors offer services and integrations that play well with leading cloud platforms to provide data protection services in the cloud.

    Data Protection Security Considerations

    Data backups and security go hand in hand.

    Must be safeguarded: Of course, backups are an effective way of recovering from ransomware or other cyberattacks that may knock a system out of commission. But backups are more than a security-enhancing necessity, they must be safeguarded themselves.

    Packed with data that can represent the contents of an entire server (see full backups earlier in this article), backups themselves make a tempting target for attackers and insider threats. One surefire way of protecting backups is to encrypt them.

    Backup and encryption: Luckily, many of the same vendors that provide backup solutions also offer ways to encrypt backup data. Comtrade's HYCU for Nutanix, for example, includes end-to-end software encryption covering iSCSI/ABS, NFS and SMB targets. The option ensures that data stays encrypted on its way from the source to a storage target, and finally at rest.

    Veritas supports encryption in its Backup Exec product. It supports both software and hardware encryption, along with two levels of encryption, 128-bit Advanced Encryption Standard (AES) and 256-bit AES.

    Understand Objectives and Priorities: Mirroring the juggling act that is an effective backup strategy, choosing one over the other comes down to an organization's objectives and priorities. 256-bit AES uses a longer encryption key, which offers a higher level of protection. 128-bit AES makes up for its shorter encryption key with swifter backup job processing.

    Key management: Encrypted backups add another wrinkle to enterprise backup strategies: key management.

    Unlike in the physical world, where accessing one's home after losing the keys is a matter of calling a locksmith, in the world of encrypted data, deleting and mismanaging keys means losing the ability to run data recovery operations on a backup. Key management capabilities vary across different platforms, but generally, they help backup storage administrators create and keep a tight lid on their backup encryption keys.

    More Resources

    This guide offers a good start in planning and implementing an enterprise backup plan that can help keep your critical business data safe and recoverable when disaster strikes. Below are some hand-picked Enterprise Storage Forum articles that will help move the process along.

    7 Reasons Why Data Backup is Here to Stay

    Ten Leading Data Backup Products

    Data Storage Protection Trends: Ten Storage Trends to Watch

    Cost Savings, Data Protection Driving Enterprises to Cloud-Based Data Storage

    8 Hot Data Protection Products

    VMware backup solutions evolve to make use of VMware APIs

    VMware backup solutions have changed radically in a relatively short time. Following VMware’s release in 2009 of the vStorage APIs for Data Protection (VADP), what used to be a clunky procedure has now become a seamless integrated process that enables users to easily manage backups in a virtual server environment.

    In this article we run the rule over VMware backup solutions, in particular the VMware virtual machine backup features of the main enterprise backup software products, namely, Symantec (NetBackup 7); IBM (Tivoli Storage Manager 6.2); CommVault (Simpana 9); HP (Data Protector 6.11); and EMC (NetWorker 7.6); and two VMware virtual machine backup specialist products, from Veeam and Quest Software.

    VMware backup solutions have evolved over the years to give us what we have today. Initially, VMware backup was mired in the traditional agent-per-server approach traditionally applied to physical server backups. Next VMware backup took the form of a two-stage approach with the release of VMware Consolidated Backup (VCB). The latest phase arrived with the release of VADP. With VADP, virtual server backup reached maturity as backup vendors gained direct access to the virtual environment and the ability to create image-based backups.

    In this article we will look at the VMware backup solutions that now exploit VADP to back up virtual servers.


    CommVault’s Simpana 9 backup suite takes an image-based approach to VMware backups and combines this with its data deduplication technology.

    Simpana 9 features SnapProtect for VMware Environments, which provides fast snapshotting with minimal VM quiescence and snapshot indexing to facilitate access to VMs contained within snapshots. If snapshots are required for long-term retention, the SnapProtect product feature moves backup images to secondary storage without inhibiting the live environment.

    VADP is used to produce snapshots that are held in a temporary storage area attached to the ESX environment. These images are then replicated out to secondary storage at a low priority to keep system strain to a minimum. This removes the need for further VM quiescence and also reduces the demand for space on expensive disks.


    Symantec NetBackup 7 offers support for VMware and Microsoft Hyper-V environments and direct storage integration via VADP.

    NetBackup 7 installs in each virtual machine a client that applies data deduplication directly as the VM is backed up. This reduces backup loading on the VM and storage environment since only unique host file changes are committed to backup. NetBackup 7 supports granular recovery to the file level, off-site replication and built-in encryption for security. Symantec claims the data deduplication technology in NetBackup 7 can reduce storage space required for backup images by 50%.


    EMC has also opted for image-based backups in NetWorker 7.6. It also has new features based on VADP, including non-disruptive snapshotting, granular file restores and data deduplication through integration with EMC Avamar and EMC Data Domain. In addition, NetWorker simplifies administrative tasks with VMware visualisation updates, which provide a logical, hierarchical view of backups to facilitate restore jobs.

    One of the most interesting features of this product is that it offers direct integration with cloud storage based on the EMC Atmos platform, which is presented as an attachable storage device. This feature offers multiple data compression levels that are fully user-configurable, and all data pushed to the cloud is automatically encrypted for security.


    HP Data Protector 6.11 is designed to integrate with HP StorageWorks SANs and uses that integration to offer an image-based backup product that is not limited to one virtualisation platform. It is capable of backing up Hyper-V as well as VMware environments. Application-aware agents ensure restored application data is consistent and quickly recoverable from a single console. This integration also means no performance load is placed on ESX hosts or VMs when backups occur and administrators can choose to use agent, VCB, VADP or array-based approaches.

    The Zero Downtime Backup agent included with Data Protector has a staged backup method that uses the storage array to create snapshots and then performs backup tasks against these rather than the live environment. This effectively removes the need for a reserved backup window. StorageWorks users consequently have one of the widest ranges of backup options available for virtual environments in a single integrated product.


    IBM Tivoli Storage Manager for Virtual Environments has GUI and command line access for administrators and has a common storage node for all virtual machine snapshots, with multiple levels of restore possible from file to machine level. Backup images are stored in an off-host environment and moved directly to disk using VADP. These can then be restored directly to ESX hosts by the same method.

    Automatic detection of new virtual machines is built in. Data deduplication and image compression are now standard, and TSM for Virtual Environments has the ability to offload backup work to the storage array, as with HP Data Protector.


    With the release this year of version 5 of Veeam Backup & Replication, Veeam has announced a number of new features -- dubbed vPower -- designed to help backup administrators. Possibly the biggest advance in this product is the ability to run a virtual machine directly from a backup image that has been compressed and deduplicated.

    Meanwhile, the Instant VM Recovery feature effectively provides a hot spare of each VM from prior backups, which can be migrated into the live environment through VMotion.

    The U-air tool provides granularity to backups and allows administrators to retrieve individual files from within VMDK images. The SureBackup Recovery Verification feature gives administrators the ability to verify backup integrity in a so-called Virtual Lab, which is a dedicated test environment separate from your production infrastructure.

    The vPower features exploit VADP but allow a user to work via VCB as an option.

    Quest Software

    Quest Software offers an image-based approach to VM backup with the Quest vRanger product suite, capturing an image of a running VM in a single file.

    vRanger offers two product levels. vRanger Standard Edition provides concurrent simultaneous VM recovery, granular file-level restores from within VMDK images and deduplication via active block mapping technology. The Pro edition adds VMware replication to the package for those who want disaster recovery site capabilities.

    Quest made an important addition to the vRanger product suite with the ability to perform LAN-free backups, which can be streamed directly to SAN storage. The company did this by directly leveraging VADP; it has completely abandoned the use of VCB.

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