Storage Blog

Reliant - Deduplication ExplainedWhat is data deduplication?

The process of data deduplication identifies duplicate data on a volume and eliminates it, ensuring that the remaining data is correct and complete. Deduplication eliminates redundant data leaving only a single copy for storage. When deduplication takes place, data remains indexed so it can be accessed again if required. With deduplication, required storage capacity can be reduced as only unique data is retained. Deduplication eliminates redundant data by deleting duplicate files and leaving only one copy to be stored.

How does deduplication benefit you?

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EOSL, EOL, EOS, EOAWhen a particular vendor schedules hardware for End of Service Life, it can be a difficult time for the customers who use those products on a daily basis. Not only do you have to worry about what that means for the future of your EMC or NetApp products, but you also have a variety of different dates to keep track of in your head. EOSL, EOL, EOS and EOA are all abbreviations that are incredibly important to know. Keeping track of exactly what these abbreviations mean will go a long way towards helping you make the right decisions moving forward. So what exactly is the difference between all these different terms?


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EMC - VNX2 and Hot SparesEMC’s VNX2 line completed changed the way that hot spares work as a practice. The change was so drastic that stands to impact not only current generation EMC devices but next-generation devices, as well. The alterations stand to affect both the devices themselves and required administration practices in a variety of ways both positive and negative. The changes affect all VNX2 devices running MCx series code like the VNX8000, the VNX5800, the VNX5200 and more. The MCx series code is also commonly referred to as "multi-core optimization."

Hot-Spare Designations

Perhaps the biggest change that VNX2 has brought to hot sparing is that these devices no longer utilize hot-spare designations at all. The practice is sparing is now handled from unassigned drives in a permanent way - no equalization takes place during the standard replacement process. Instead, the aforementioned unassigned drive itself becomes the replacement on a permanent basis.

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Reliant - Unified Storage Showdown EMC vs NetApp

NetApp and EMC are unified storage leaders – Which should you choose?

Unified storage is a mainstream technology used by storage vendors. Computer Weekly outlines some of the current characteristics that are becoming part of block storage array devices.

The only major vendor to offer a fully unified platform is NetApp. Its FAS8000 series of devices doesn’t require additional hardware to provide for file or block. Most other vendors haven’t chosen this path in storage implementation because they prefer to use separate components.

NetApp and EMC can both support the most daunting storage environments maintaining them well with management software. Both can also support your SAN environment. Get to know them both before making your decision.

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Reliant - Fibre Channel Showdown Cisco Brocade

Brocade DCX vs Cisco MDS 9509

The Brocade DCX is a powerful, enterprise-class director. The Cisco MDS 9509 offers similar technology. Both deliver reliable, high quality switching infrastructure. It’s for you to decide which director can best meet your requirements.

The Brocade DCX and Cisco MDS 9509 are dependable SAN directors that bring high reliability to your switching infrastructure. SAN directors provide continuity of operation, ensuring that whenever a blade fails it can be replaced without downtime. Both Cisco and Brocade are just about equally reliable.

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Reliant - CLARiiON Secrets

While EMC is one of the major players in the storage game, there may still be some things that you may not know when it comes to used EMC CLARiiON storage hardware. How much can you save buying used? Does old equipment mean bad equipment? Those are just some of the things we explore today.

Secret 1: Buying used EMC CLARiiON storage can typically save you 30-70% off what you may already be paying.

There are a lot of different things you can do with that type of savings. You could buy 2-3x more capacity with the money. You could upgrade your backup solution. You could get some new VMware tools. Or just pocket the savings! You can gain a lot of flexibility when you buy used EMC CLARiiON storage hardware.

Secret 2: Older equipment doesn’t mean bad equipment.

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Where Does Data Live?

Posted on January 9, 2015 in Knowledge and Learning

Reliant - Where Does Data LiveWhere exactly does data live? Your data is vital to your business, so it deserves a good home.

It is as simple as that.

However, with technology continuously advancing and businesses constantly pressuring to cut costs, data seems to have to move its residence quite frequently. Data can now be housed on physical servers, virtual appliances, or the Cloud.

So, since data has to live somewhere, how does a storage engineer determine where the data needs to live?

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Reliant - Avoid BottleneckOne of the unfortunate things about performance bottlenecks is that they can essentially occur at nearly any point in a storage system. Storage arrays, hosts and even the network itself can suffer from performance issues during peak usage hours, which are also often the times where you need reliability the most. By identifying and learning more about some of the key culprits of performance bottlenecks within a storage system, you can make adjustments to your own configuration and put in place certain best practices within your organization that can help you avoid them altogether.

Shrinking Backup Windows

One of the biggest sources of performance bottlenecks has to do with a dramatically increased rate of data growth that many different types and sizes of organizations are seeing within the last few years. It is not uncommon to see a company's data growth rate exceed 60% or more on an annual basis. All of this additional data requires faster storage I/O, which can certainly be a tricky balance to try to meet.

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Repurposing a CLARiiON System

Posted on January 5, 2015 in Tips to Save

Reliant - Repurposing a CLARiiON SystemIf you are considering upgrading to an EMC VNX, you may wonder what to do with some of your older technology such as EMC CLARiiON storage systems. We are going to provide some suggestions about how to repurpose your CLARiiON system.

CLARiiON as Lab Environment

Many storage admins may complain about not having a good lab environment. With repurposing your CLARiiON system, you can be able to test out the technologies that you may considering implementing in your production environment in the future. A CLARiiON will give you the ability to have a fully functional storage array in your lab environment that is SAN, iSCSI, or FCoE connected to emulate a true production environment.

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Reliant - Storage Pools vs RAID GroupsToday, we are going to take a look at RAID Groups versus storage pools and give some tips about which would be more beneficial for your organization.

What is a Storage Pool?

A storage pool is essentially capacity that is aggregated from various physical storage resources into a shared storage environment. Storage pools can give you a multitude of different things that can help make storage management more simplified. When you have a storage pool, you no longer have to think about how many IOPS you will need to squeeze out of a certain amount of drives. Storage pools allows you to put multiple different types of drives into one container. So, you can have a storage pool that has a tier of SATA drives, a tier of SAS drives or Fibre Channel drives, and a tier of EFD. 

What do you get from this?

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