vSphere 6.5 UNMAP patch

A quick FYI for you about a VMware patch. VMware has released vSphere 6.5 p01 which, among other things, fixes a particular issue related to automated Guest OS UNMAP (does not impact automated UNMAP on datastores). The particular bug fix of note which can be seen in the KB is: Tools in guest operating system might send unmap…

vSphere 6.5 – UNMAP on VMAX

As I mentioned in my previous post on vSphere 6.5, VMware now offers automated UNMAP capability for VMFS datastores as well as Linux Guest OS support for UNMAP. I’ll cover VMFS first, then discuss Linux support. ********************** Update 03-15-17 VMware has released vSphere 6.5 p01 which fixes a particular issue related to automated UNMAP in…

VMAX/VMware TechBook, VAAI WP

The after-EMC World documentation updates continue with the publishing of the VMAX VMware TechBook (Using EMC VMAX Storage in VMware vSphere Environments): Click to enlarge – use browser back button to return to post and the VAAI whitepaper (Using VMware vSphere Storage APIs for Array Integration with EMC Symmetrix): Click to enlarge – use browser…

UNMAP behavior in ESXi 5.5 P3/ESXi 6.0

I’ve had a few questions on how the VAAI UNMAP primitive has been changed in ESXi 5.5 P3 and ESXi 6 since I re-tweeted a colleague’s blog post on it. The changes will be documented in my VAAI whitepaper but as I don’t have a plan yet for publication, I wanted to include it here…