Posts Tagged ‘cloud replication’

Combining Storage Virtualization with Unprecedented Cloud Storage Flexibility

Tuesday, October 4th, 2011

The business case for storage virtualization software isn’t new. System administrators have always sought best of breed data storage from a choice of storage vendors and a centralized management framework. With a variety of data storage devices available today, ranging from high-performance SSD and Flash cards to low-cost SATA arrays, a seamless way to automatically tier data across the diversity of storage devices and purpose-built arrays can maximize utilization and cost-efficiency. Hardware interchangeability and auto-tiering empower consumers with greater cost controls and buying power. In addition, there are numerous benefits to an enterprise-class software stack that includes data replication and disaster recovery in a footprint that persists across storage system upgrades, with no need to ever change data management interfaces and policies.

DataCore SANsymphony-V is offered by the pioneer and established leader in the storage virtualization segment and is the industry’s first storage hypervisor that provides all of the above benefits and much more. This week, DataCore’s storage virtualization software added the flexibility of Cloud Storage to its list of features with the announcement that every copy of SANsymphony-V now bundles a TwinStrata Cloudarray virtual appliance. The combination enables companies to achieve true ‘open market’ buying power across their portfolio of storage investments; TwinStrata extends the cost-saving value propostion to a broad and impressive selection of public and private cloud storage providers.

The key implication is that DataCore has opened a path for seamlessly integrating cloud storage into existing storage environments. A cost-effective auto-tiering strategy eliminates the need to orchestrate cumbersome and/or disruptive migrations of existing data –you can take advantage of cloud storage immediately in a manner transparent to existing applications. Recently, I wrote an article entitled Breaking the Storage Array Life Cycle, describing how businesses are using cloud storage to break or extend the rather undesirable 3-5 year life cycle of storage arrays. This joint announcement takes the concept one step further, providing the easiest path to date for offloading data from your expensive on-premise arrays.

With the introduction of cloud as a part of a storage virtualization strategy, there is no longer a need to deploy dedicated off-site infrastructure to move data backups off-premise for disaster recovery. Petabytes of thin-provisioned cloud storage are just a button-click away, all with CloudArray’s robust enterprise-class feature set, including dynamic caching, data reduction, at-rest local key encryption and bandwidth optimization. Augmenting or even replacing an off-site tape strategy is simpler than ever.

As an added benefit, the compelling features of storage virtualization on local storage now apply across multiple cloud storage providers. Concerned about cloud reliability? Just select RAID or mirroring across a choice of cloud storage providers and increase reliability dramatically. You can also virtualize cloud storage along with existing local storage. Want to replicate data in an existing storage array to the cloud? It’s now a simple process — no data to migrate, no APIs, no vendor lock-in and the broadest choice of cloud providers.

Bottom line? Terri McClure from Enterprise Strategy Group may have summed it up best, saying the combined solution “gives companies greater control over storage performance and helps control costs by making it easy to tier their storage across the absolute widest range of resources, from high-performance SSD arrays and legacy disk arrays, to scalable, cost-effective cloud storage.”

Learn more about the unique TwinStrata and DataCore solution today.

6 Key Features of Cloud Storage Gateways (On-ramps or Enablers)

Monday, February 28th, 2011

Are you considering cloud storage for your business?  There are many reasons you should.  Using innovative cloud technology, IT is solving data storage problems in new ways. Whether it’s for off-site data protection, disaster recovery or just storage capacity expansion, the pay-as-you go model pioneered by a number of cloud storage providers can be very compelling.

Rather than use cloud storage directly by writing to custom APIs, building your own security policies and architecting a performance framework to meet application needs, you may find that on-premise cloud storage software or hardware (i.e. gateways, on-ramps, enablers) make integration simpler.  Purchasing a product that handles security, performance, data reduction and plug-and-play integration can significantly accelerate and simplify deployment.

With a handful of gateway products already on the market that can connect your on-premise environment to cloud storage, a natural question may (or should) be “what is the difference between these products?” above and beyond the aforementioned functionality.

To answer this, we’ve put together a list of 6 differentiating features you should consider when choosing a cloud storage gateway:

1) Dynamic caching policies to meet application needs:  A monolithic cloud storage cache may not be able to handle the performance needs for all applications. A backup application may benefit from a cache consisting of low-cost storage optimized for large sequential access, while an NTFS file system may benefit more from an SSD-based cache, optimized for smaller, more randomized access. Each application may require more or less cache over time. Having application-specific caching policies that are dynamic means you can meet needs of different applications using a single solution.

2) Option to replicate a local copy to the cloud: Some vendors argue that having a full local copy defeats the purpose of cloud storage – not at all true! Imagine replacing a real-time replicated secondary site requiring hardware, infrastructure and maintenance costs with a pay-as-you-go cloud! Or imagine not having a secondary site to begin with and now finding a 2-site replication solution within easy reach. This is a very compelling business proposition, particularly for transactional applications that require a full local copy for latency reasons.

3) In-cloud snapshots: Snapshots are rapidly becoming a key part of modernized backup and, when using the cloud, it is important to find out whether a gateway solution offers snapshots. If yes, are the snapshots copy-on-write and on-premise, meaning potential bandwidth thrashing between the local site and the cloud? Or are the snapshots in-cloud, redirect-on write, meaning no bandwidth penalty or performance penalty and readily available in case of disaster? If you have the option of the latter, you may have gathered that it is far superior.

4) Block and file-level access: It’s amazing to hear arguments from vendors trying to convince users that file access is better than block access for cloud gateways. The reality is that there are advantages to file access and advantages to block access. Supporting both means supporting that widest variety of operating systems, file systems and applications; and there is no longer any argument. Hint: having native block access (like iSCSI) means you can support both.

5) “Zero-friction” entry point to cloud storage: Deploying cloud storage should not mean continuing to spend additional CapEx/OpEx associated with traditional storage infrastructure and incurring the same 3-yr upgrade cycles.  Sure, there are advantages to optimized hardware appliances for accessing cloud storage, but only when needs and budget dictate. A choice of software, hardware and subscription models  with upgrade paths between each are the ideal way to start using cloud storage with minimal risk/cost and the ability to grow.

6) In-cloud disaster recovery and Compute-Anywhere capability: Once your data is in the cloud, you can access it anywhere, but how about in the cloud? Why not be able to leverage unlimited pay-as-you-go cloud compute cycles for disaster recovery or test. Beyond disaster recovery, your data or snapshots of data can and should “work” for you in the cloud. You can even leverage Big Data without dedicated processing resources by using cloud compute. Think about a vision of a hybrid data center and how this capability can enhance IT.

In summary, all cloud gateways, on-ramps, or enablers are not equal and it takes looking beyond  the similarities in features to understand whether they will meet the needs specific to your environment and grow to meet your future needs. It pays to look under the covers before purchasing…

Perhaps you have found a cloud storage solution that has all of these features. If you haven’t, we suggest you consider a cloud storage solution that does….

Higher Education Lunch Session: Learn How To Capitalize on Cloud Storage Today

Tuesday, February 1st, 2011

 

Is Data Growth Getting You Down? Then Look Up To the Cloud!

  • Thursday, February 10, 2001 
  • TwinStrata Offices
  • 24 Prime Parkway, Suite 301A
  • Natick, MA 01760
  • 9:30 AM to 1:00 PM 

TwinStrata Can Help Colleges & Universities Capitalize on Cloud Storage…Simply, Securely, and Affordably

Are you looking for ways to battle shrinking budgets yet still address the need for ever-increasing storage capacity, efficient off-site data protection and affordable disaster recovery across your campuses?

Using TwinStrata CloudArray®, an affordable iSCSI data protection and disaster recovery cloud storage solution, can bring relief. It’s non-intrusive and non-disruptive, requiring no “rip and replace” of any existing application or infrastructure. 

Attend our Higher Education Lunch session on Thursday, February 10, 2011 and learn how TwinStrata can help you:

  • Turn capex into opex  
  • Balance your capacity demand and cost
  • Seamlessly scale IT using cloud storage
  • Reduce IT complexity and increase IT efficiency

The program will include:

  • Lunch
  • A $25 VISA Gift card for attending
  • An opportunity to meet our Development and Management Teams
  • Participation in a CloudArray workshop
  • A grand prize drawing (must be in attendance to win)

Why a Massachusetts High School Picked TwinStrata CloudArray over Competition

Tuesday, January 18th, 2011

 

Kyle Jones, technology manager, Essex Agricultural and Technical High School in Hathorne, MA tested cloud gateway products from Nasuni and TwinStrata to meet specific IT budget and operational objectives. The reasons TwinStrata won out are worth reading about, especially if you are part of a small to medium size business considering cloud storage for either offsite backup, archive, or disaster recovery and business continuity.

Mr. Jones was interviewed recently by TechTarget Senior Site Editor, Andrew Burton where he discussed his requirements, offsite storage/data protection options, and why CloudArray was a better business and technology solution choice to handle the school’s backup to cloud storage needs. 

You can read more about it here:  High School Deploys TwinStrata CloudArray Cloud Storage Gateway

TwinStrata CloudArray Picked as Finalist in Storage Magazine/SearchStorage 2010 Products of the Year Competition

Thursday, January 13th, 2011

 

Backup and Disaster Recovery (DR) Software and Services: 2010 Products of the Year Finalists Announced 

From nearly 200 entries, the judges of Storage magazine’s and SearchStorage.com’s 2010 Products of the Year awards have selected 43 products as finalists including TwinStrata CloudArray. CloudArray was selected as a finalist in the Backup and Disaster Recovery Software and Services category which covers backup, recovery, DR, snapshot, replication, electronic vaulting, and archives.

Read more… 

  

Cloud Storage Performance: I/O Does Matter

Tuesday, January 11th, 2011

 

One of the first decisions you will need to make when tuning your environment for Cloud Storage I/O is what page size you will use to perform writes to your Cloud Storage Provider (CSP).  This is one of the configuration parameters you will enter when configuring a new volume in CloudArray. 

Page sizing is an important consideration, and represents the smallest unit of data that will be sent to your CSP from your CloudArray appliance, or read back when needed. Choose a size that is too small and you may have to do a lot more I/Os if you need to move a lot of data in bulk.  Choose a size that’s too big and you will move more data than you need to.

For example, if your application needs to read a lot of small chunks of data that don’t already reside in your CloudArray cache, then CloudArray will have to issue read requests to the CSP for each of those chunks.  If each chunk was 64K in length, and they weren’t contiguous, then CloudArray might have to issue 4 separate read requests for that data.  If the data were contiguous, then only 1 read request would need to be made.

Larger Page Sizes will result in more data being read than is needed for the current operation, but it may help performance if that data is needed at any point while it is still in cache. In CloudArray, you can choose variable page sizes from 128 KB (default) all the way to 2 MB.  512 KB is the recommended value for backups and in cases where there is a lot of sequential I/O. 

If you do a lot of random small block I/O, you should choose the smaller default page size.  This will prevent having to move a lot of empty data between your CSP and the CloudArray appliance.  A large page size here will cause slower overall performance since a lot more pages will have to be written to accommodate the data requirements. Likewise, if you are doing backups, you will want the 512 KB (or larger) page size.  This will result in fewer overall writes compared to a smaller block size and performance will increase.

This can have an impact in your cost model as well, but nowhere nearly as much as some vendors selling file system-based appliances would have you believe.  Some CSP’s will charge a small per transaction fee for each read or write request you make.   For Amazon S3 for example, the charge is $0.00001 per write transaction.  And so for a 1TB backup, that amounts to 8,388,608 x 128KB transactions, or $83.  If you used a 512KB page size, that would amount to 2,097,152 write transactions, or $20 for the write transaction costs.  Reads are cheaper by an order of ten.  That’s a far cry from the $1K+ figure for a 100GB write that another vendor would cost you.

Visit www.TwinStrata.comfor more info about CloudArray.

TwinStrata’s CEO is Tapped by ESJ for 2011 Cloud Predictions

Tuesday, January 4th, 2011

The Year Ahead in Cloud Computing

The pressure to create a cloud presence will only become stronger in 2011. What IT needs to know to be prepared for Cloud Storage is outlined in an Enterprise Systems Journal (ESJ) article authored by TwinStrata’s CEO and Co-Founder, Nicos Vekiarides.

ESJ approached Nicos for this article because they wanted an inside perspective of the emerging cloud storage market. TwinStrata is a leader in cloud storage enablement solutions to provide companies of any size with iSCSI SAN solutions for offsite data protection, archive, and disaster recovery.

Please take a moment and read the ESJ article: The Year Ahead in Cloud Computing