08 Jul 2015

VSphere 6 & VVOL’s: What the hype all about ?

VMware vSphere 6 and VVOL’s  VVOLs is a provisioning feature for vSphere 6 that changes how virtual machines (VMs) are stored and managed. – They have been hyping this technology for quite some time and it’s finally here.  So what is its real value.

VVOLs, which is short for Virtual Volumes, enables an administrator to apply a policy to a VM which defines the various performance and service-level agreement requirements, such as RAID level, replication or deduplication. The VM is then automatically placed on the storage array that fits those requirements.

VVOLs’ other advantage is the ability to snapshot a single VM instead of just the traditional snapshot of an entire logical unit number that may house several VMs. This feature saves wasted space on the data store and reduces the amount of administrative overhead.

So here is the most important part….To use VVOLs, the storage hardware has to support the vStorage APIs for Storage Awareness (VASA). VMware introduced VVOLS at VMworld 2011 during a technical preview session but now has offi clyy released it.

Alot of storage vendors are just getting to the point that they can support it, they must be compatible with

Storage awareness 2.0 , this means writing and testing new code which can take a while from an R&D standpoint so dont expect to see a wide adoption of VVOLs right out of the gate.


There are also a number of features that you may be using or want to use which are not compatible with VVOLs so these are important to consider if you think you want to use it:


  • VMware vSphere 6.0.x features that are not interoperable with Virtual Volumes (VVols) are:
  • Storage I/O Control
  • NFS version 4.1
  • IPv6
  • Storage Distributed Resource Scheduler (SDRS)
  • Fault Tolerance (FT)
  • SMP-FT
  • vSphere API for I/O Filtering (VAIO)
  • Array-based replication
  • Raw Device Mapping (RDM)
  • Microsoft Failover Clustering


There are a few Storage vendors on the market today that have already implemented their own version of VVOLs , they have all been based on using NFS so that the file system is exposed.   With VVOLs their are many benefits and we see good things that will come from it, but it needs to get mainstream adoption from the Storage Vendors to get widely adopted as well as some of the features listed above need to not be a barrier to using it for us to really see the value.
Dave Kluger – Storcom Principal Technology Architect

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30 Jun 2015

How Do I Choose The Right Provider for DRaaS?

A recent post from Brian Posey over at Searchdisasterrecovery “How do I choose the right cloud services provider for DRaaS?” points out some of the pros and cons of using the big cloud providers like AWS and Azure over a smaller managed service provider like Storcom to provide DR-as-a-service.

He does a good job of pointing out the fact that it all depends on an organization’s needs, which is absolutely true. However at Storcom, we think that in most cases when looking at companies in the Mid-enterprise space, the need for directed consulting on the entire DR process is way more valuable than the benefits of scalability that the large cloud providers bring to the table.

He points out that large cloud providers can provide rock solid SLA’s, unlimited resources, and multi-site data centers which all make sense when looking at running production workloads.  At Storcom, we believe that the benefits of having a custom tailored solution that is designed to meet your needs, as well as providing the consulting expertise and services to extend your IT workforce, outweigh any of the large cloud provider benefits.

The Recover by Storcom managed DR-as-a-service solution provides organizations with the ability to turn on and turn off consulting services as needed, eg. helping design a DR/BC runbook with the process and tasks needed to bring critical systems back online and provide proper connectivity.

A smaller managed services solution provider also brings to the table other services such as helping make sure all data is protected on a day to day basis or an on-demand basis. This is something that is not available from the large Cloud providers.  If you do not have the in-house expertise, then you simply can rely on a managed services provider that has a staff of IT professionals that can aid in these gaps that your staff may have.

All-in-All, Brian Posey did a good job of pointing out the benefits and drawbacks of the solutions from a pure technical standpoint, but missed a few key points from a services standpoint. Storcom can provide the benefits of managed data protection as a service that much of the industry is still not seeing today.

Full Article from searchdisasterrecovery.com

-Dave Kluger

Principal Technology Architect

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