Pure Storage and VMware VAAI

Today I posted a new document to our repository on purestorage.com: Pure Storage and VMware Storage APIs for Array Integration—VAAI. This is a new white paper that describes in detail the VAAI block primitives that VMware offers and that we support. Furthermore, performance expectations are described, comparing before/after and how the operations do at scale. There are some best practices listed as well, the why and how of those recommendations are also described within.

I have to say, especially when it comes to XCOPY, I have never seen a storage array do so well with it. It is really quite impressive how fast XCOPY sessions complete and how scaling it up (in terms of numbers of VMs or size of the VMDKs) doesn’t weaken the process at all. The main purpose of this post is to alert you to the new document but I will go over some high level performance pieces of information as well. Read the document for the details and more.


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Provisioning a new ScaleIO volume in a VMware environment

I recently posted about adding capacity to a ScaleIO storage pool, so the next logical step is provisioning a new volume. In this post, I am going to cover the straight-forward act of creating a new volume from a storage pool, mapping it to a ScaleIO Data Client (SDC) and then presenting it to the VMware cluster.

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The first step is to assure we have enough space to configure a new volume of the size we desire. GUI or CLI will suffice:

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Virtual Storage Integrator 5.6: VPLEX Provisioning

I’m (Drew Tonnesen, @drewtonnesen) back for another guest post, this time continuing Cody’s theme of VSI 5.6.  Besides the much anticipated (and long awaited) striped meta capability in Unified Storage Management (USM) 5.6 for VMAX, there is now VPLEX provisioning!  For those of us who use VPLEX with VMware this simplifies the creation of datastores on VPLEX.

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Changing the default IOPS value for VMware Round Robin and Symmetrix Devices

A common recommendation from storage vendors is to change the default IOPS setting for VMwares’ Native Multi-Pathing (NMP) Path Selection Policy (PSP) Round Robin. The IOPS setting controls how many I/Os are sent down a single logical path before switching to the next path. By default this number is 1,000 I/Os. The VMAX recommendation is to set this to 1. The purpose of this blog post is not to debate the setting, but to help those who want to use it. Regardless, I have seen many customers benefit from this recommendation. Once they see a benefit they want to know–can I make this setting a default?

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