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Posts Tagged ‘deduplication’

CIO Concerns: Maximizing Your Data Protection Budget, Part II

Posted by Mike Daniels on August 26, 2010

Mike Daniels, Product Manager

In Part I of this blog entry, I talked about maximizing your data protection budget by considering consolidation and looking at disk-to-disk (D2D) or disk-to-disk-to-tape (D2D2T) solutions. In this article, we’ll look at deduplication and some budget savers versus budget busters.

Enter deduplication. When you start deduplicating data it can drastically decrease the budget requirement for disk due to reduced space needed. It reduces storage by eliminating redundant data. One unique instance of the data is retained, and redundant data is replaced with a pointer to the original unique data. So, less space, less money.

Further savings with disk is recognized with significantly faster recovery times. Remember cassette tapes and how cool it was when CDs entered the market?

If you wanted to hear song number three on your tape, you needed to hit

fast-forward and wait. When CDs showed up, you could enter any random track and get your song near-instantaneously. I don’t know any IT managers who don’t want to deliver this functionality for data restore to their teams. So, not only are you buying less disk with deduplication, but you speed up recovery producing further cost-savings.

Another disk benefit is reliability. There is no argument that disk is more reliable than tape. Anyone who uses tape will tell you it’s fragile. Humidity, temperature, number of uses will all negatively impact your chance of getting your data back. Are you confident you have proper guidelines regarding tape storage at your organization? What happens if the person whose job it is to swap tapes and take them off-site, leaves them in the car to run a quick errand, in the middle of summer, and you happen to be located in Arizona? Basically that tape is not usable. But you won’t know until you have to restore something. That’s an extreme example and unlikely that any IT manager is advising his team to manage their tapes in this fashion, but I’m sure you’ve heard of or experienced yourselves numerous accounts of data loss when recovering from tape.

I’m not saying you do away with tape backup. It’s a good solution for long-term storage, but it certainly is not cost-effective when it comes to reliable, fast recovery. If you can get the correct business unit managers supporting a disk-based purchase initiative, you can easily show tremendous cost-savings associated with productivity and reliability to your CFO.

I’ll leave you with one last cost-savings tip, choose one vendor with a suite of products to support your data protection requirements. You don’t want multiple finger-pointing vendors when you have questions, and it makes life much easier for your team to learn and stay trained on the applications.

Consider a couple of things when evaluating vendors: 1) how easy are the solutions to administer, 2) how responsive is support. I had an experience with a customer who was using a competitive product. While I was on site, he called the other vendor’s support to help resolve some issues. Meanwhile, he allowed us to do a proof of concept with our product. We installed, configured, and completed a backup before our competitor’s support team had even answered the customer’s call.

Make sure you understand every aspect of a vendor’s support program before you enter into a contract. This is overlooked far too often, in my experience, until you actually need support. This oversight can unexpectedly impact your budget and increase the overall cost of the product.

So here’s the thing: it’s not difficult to find cost savings when it comes to adequate and proper data protection. Just remember…

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CIO Concerns: Maximizing Your Data Protection Budget, Part I

Posted by Mike Daniels on August 24, 2010

Mike Daniels, Product Manager

How do you protect an enterprise environment without an enterprise budget? I see this problem so frequently in customer data centers, trying to adequately protect data in a budget constrained environment.

Don’t despair. There are several things your team can do to maximize your budget.

First, consider consolidation. Do different departments or branch offices have their own protection solutions? Maybe some are on Mac, Windows, or Linux. Each likely has critical some critical data and applications that need special attention. If you haven’t already, consider consolidating requirements into a central location with heterogeneous protection. By centralizing, you recognize savings on economies of scale – one large environment versus small islands. You’ll have one maintenance cost, perhaps price breaks on standardized applications addressing multiple departments’ needs rather than each sourcing its own solution.

Many large companies have been doing charge backs for a long time. Why not you too? Departments were going to pay for the protection anyway, and now you could actually end up saving them money by charging a smaller fee than their previous individual payments. Not only is it an overall cost-savings measure, it addresses what should be your top concern: data being protected properly by the experts who really know how to do it.

Aside from consolidation, ensuring fast, reliable restores is one of your best budget-savers. One way to do this is to look at a disk-to-disk (D2D) or disk-to-disk-to-tape (D2D2T) solution. I know what those of you who haven’t already done this are thinking… new hardware, new applications, how is this possibly a cost-savings measure? Stay with me, because, ultimately, this could save you a lot of money.

In the past, disk-based backup has been a niche feature, because backing up to disk could take anywhere from ten to fifty times the amount of space versus server space. This was a big hindrance for people not moving to disk-based solutions faster.

In Part II of this blog entry, we will examine deduplication as it relates to maximizing your data protection budget, and we will discuss some budget savers versus budget busters.

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Podcast – Noah Dionne from DeLorme Dishes on BakBone Deduplication

Posted by Amber Winans on April 28, 2010

Noah Dionne, System Administrator, DeLorme

5 min 3 sec

In this podcast, BakBone customer Noah Dionne from DeLorme shares his story of putting BakBone’s deduplication technology to work at this leading mapping and GPS solutions company. With NetVault: SmartDisk, DeLorme is able to compress their data and save space and money spent on storage drives. Dionne says, “With the money we saved on tapes, we were able to cover the licensing costs of the SmartDisk solution, which offers more benefits than tape backup.”

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Choosing Where to Deploy Your NetVault: SmartDisk Instances

Posted by Dawn renee Campbell on April 6, 2010

Dawn renee Campbell

Another step in your NetVault: SmartDisk (NVSD) Deployment Strategy is choosing where you want to deploy your NVSD Instance(s). Whether the NVSD Instance will be enabled for deduplication will dictate the available deployment options.

NetVault: SmartDisk Non-deduplicated Instance Deployment Options

NVSD Instances which have deduplication disabled can be deployed on the NetVault: Backup (NVBU) Server, a NetVault: Backup Heterogeneous Client, or a dedicated server and can accept data streams from heterogeneous platforms. When multiple NVSD Instances are deployed, Storage Pools and processes are not shared across the multiple NVSD Instances. However, multiple NVSD Instances cannot be deployed on the same machine whether it is a NVBU Server, NVBU Client, or a dedicated NVSD Server.

Following are several deployment options that are possible when deploying NVSD Non-deduplicated Instances and should not be considered exhaustive. You can also check out the graphics at the bottom of this post, depicting the different deployment options.

NetVault: SmartDisk Non-deduplicated Instance Deployed on Single NetVault: Backup Server

In the simplest deployment, when only one (1) NVSD Non-deduplicated Instance is required for a NVBU Domain with a single NVBU Server, the NVSD Instance is deployed on the single NVBU Server utilizing file system paths accessible by the NVBU Server for the NVSD Storage Pools. The single NVBU Server’s Clients that target backups to NVSD will stream backup data on a user-defined port to the NVSD Instance where the backup is stored in the NetVault: SmartDisk Storage Pools.

NetVault: SmartDisk Non-Deduplicated Instance Deployed in Multiple NetVault: Backup Server Environment

In NVBU environments where only one (1) NVSD Instance is required for a NVBU Domain with multiple NVBU Servers, a single NVSD Instance can accept data streams from multiple NVBU Servers. In the example below where a single NVSD Instance is deployed for multiple NVBU Servers, the NVBU Clients from both NVBU Servers will stream backup data on a user-defined port to the NVSD Instance that is deployed on one of the NVBU Servers.

In NVBU environments where multiple NVSD Instances are required for a NVBU Domain with multiple NVBU Servers, one (1) NVSD Instance can be deployed on each of the NVBU Server, one (1) NVSD Instance can be deployed on the NVBU Server and one or more NVBU Clients. In the example below two (2) NVSD Instances are required and there are two (2) NVBU Servers, a single NVSD Instance will be deployed on each of the NVBU Servers. The NVBU Clients from both NVBU Servers can stream backup data on a user-defined port to either NVSD Instance that is deployed.

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Calculating Physical Disk Space for Licensed NetVault: SmartDisk Capacity

Posted by Dawn renee Campbell on March 8, 2010

Dawn renee Campbell, Senior Product Manager for NetVault: SmartDisk & NetVault: Backup

After you have determined how much NetVault: SmartDisk (NVSD) capacity you need to license, the next step is calculating how much physical disk space you will need.

As we discovered in my Calculating NetVault: SmartDisk License Capacity blog, NVSD is licensed based on the Logical Capacity of the data that it can store. However, in Deduplicated NVSD Instances, Logical Capacity does not match Physical Capacity or physical disk space. This is because NVSD Deduplication Option packs up to 12 times more protected data into the same storage area for a 92% reduction in storage footprint.

Deduplicated NVSD Instances

A Deduplicated NVSD Instance can have a combination of both Deduplicated and Non-Deduplicated data. In this configuration, calculating the total Physical Capacity or physical disk space is comprised by calculating the Physical Capacity for the Deduplicated Backups followed by calculating the Physical Capacity for the Non-Deduplicated Backups and totaling the sums.

Deduplicated Backups

The Physical Capacity or physical disk space required for Deduplicated Backups in Deduplicated NVSD Instances is equal to the Size of Weekly Full Backups + Unique Data Size and is calculated using the following formula:

(Size of Weekly Full Backups) +

Size of Weekly Full Backups + ((Size of Weekly Full Backups * Weekly Change Rate)

* Weekly Full Backup Retention Period)

+ (Size of Daily Backups * (Number of Daily Backups between Weekly Full Backups

* Daily Backup Retention Period))

Non-Deduplicated Backups

The Physical Capacity or physical disk space required for Non-Deduplicated Backups in a Deduplicated NVSD Instance is calculated using the following formula:

(Size of Non-Deduplicated Weekly Full Backups * Weekly Full Backup Retention Rate)

+ (Size of Non-Deduplicated Daily Backups * (Number of Daily Backups between Full Backups * Daily Backup Retention Period in Weeks))

Total Required Disk Space = Deduplicated Backup Disk Space + Non-Deduplicated Backup Disk Space

The Total Required Disk Space is divided into the Staging Store and the Chunk Store. If different file systems or disk spindles are going to be utilized for the Staging Store and the Chunk Store, it is important to know how much of the Total Required Disk Space will be allocated to the Staging Store versus the Chunk Store. The calculations below can be used to make this determination.

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