VVOLs and VMware

Post by Christine Taylor (thank you)

The definition of VVOLs is simple but the effect is ground-breaking. Here is the simple definition part: Virtual Volumes (VVOL) is an out-of-band communication protocol between array-based storage services and vSphere 6.

And here is the ground-breaking part: VVOLs enables a VM to communicate its data management requirements directly to the storage array. The idea is to automate and optimize storage resources at the VM level instead of placing data services at the LUN (block storage) or the file share (NAS) level.

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Thoughts on #OpenStack and Software-Defined Storage

Good Post by J Metz (thank you)

This week has been the semi-annual OpenStack Summit in Atlanta, GA. In a rare occurrence I’ve been able to be here as an attendee, which has given me wide insight into a world of Open Source development I rarely get to see outside of some interpersonal conversations with DevOps people. (If you’re not sure what OpenStack is, or what the difference is between it and OpenFlow, OpenDaylight, etc., you may want to read an earlier blog I wrote that explains it in plain English).

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Effect of VAAI on cloning with All Flash Arrays

Good Post by Mohan Potheri (thank you)

Cloning virtual machines is an area where VAAI can provide many advantages. Flash storage arrays provide excellent IO performance. We wanted to see what difference VAAI makes in virtual machine cloning operations for “All Flash Arrays”.

For the test 500GB of random data on a VMDK was created on a Linux virtual machine. This virtual machine was then cloned with VAAI turned off and then on to study its impact. The results of the testing truly attest to the big benefits that VAAI bring to massive write operations.

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