Uh oh, an old issue seems to have been reincarnated in vSphere 5.5 U2 which may cause vMotions of guests on NFS storage to fail with the error: remote host IP_Address failed with status Busy This issue was first evident some time ago where it affected V4.1 and was subsequently fixed Continue Reading
Fundamentals
EMC VNX/VNX2 – Naviseccli & Powershell – Bulk config changes with ease
GUI’s are generally cool, but when you need to get many of the same/similar tasks done, you can’t beat the speed and ease of using scripts and CLI based tools. I recently had a situation with a EMC VNX2 array where someone (or something) had caused all the LUNs in Continue Reading
ESXi – Driver VIB update using ESXCLI
Nothing groundbreaking here folks, but this is a quick and easy way to upgrade the drivers (in this case Network Intel & Broadcom) on your host(s) I’ve done this many times for various reasons: Misbehaving drivers after upgrades, Version control, “’cause I wanna’”. etc Login to your host with the Continue Reading
VMware PowerCLI – Suppress vCenter Certificate warnings
A very quick post this one, but an annoying thing I often see left unchecked in environments, that is simple to fix in a minute. Yes, this is an old topic, but it’s still too evident today…. This should be in your “just do it” category. It’s the awful Certificate Continue Reading
PowerCLI – What went where ?
I had a nice little episode with a set of PSOD looping hosts in December which resulted in a lot of guests getting moved around automatically during attempted HA recoveries. This got me thinking about all the automation that goes on ‘behind the scenes’ as a result of DRS and HA. Continue Reading
Auto ESXi Host Configuration Backups with PowerCLI
Regularly throughout the year, I like to take PIT (Point in Time) backups of my ESXi host configurations. These form part of my Critical Config backups that I hope I’ll never have to use. But like any backup, these are merely another safety net as we strive to have more Continue Reading
EMC Recoverpoint: Consistency Group/Transfer/Init and RPA stats via RP CLI & PowerShell
The Recoverpoint GUI has improved a lot over time, and the current incarnation in the “Unisphere” framework is the best yet, by a long way. Some operations are still a bit painful, and I’ve found myself this week cooking up some RP-CLI + Powershell goodness to get details in a Continue Reading
EMC VNX – Installing software enablers – Naviseccli and USM.
“Enablers” in EMC parlance, are small installable files that unlock licensed features on your array. These include FAST, FAST cache, Mirrorview etc. To see which enablers are installed on your Array, you can use naviseccli : naviseccli -h arraysp ndu -list otherwise you can check from Unisphere on the Software Continue Reading
PowerCLI – Break glass in case of emergency
Nothing like a bit of Hyperbole, but some days are better than others! One thing I have learned over the years is to always expect the unexpected. Yesterday’s ‘unexpected‘ was one of these; That’s cool, HA kicked in and the stranded guests began to Continue Reading
VAAI- Hear me now, believe me later
VAAI (vStorage API for Array Integration) was first introduced into vSphere in v4.1 with promises of deeper integration and control over supported storage Arrays. Each feature (or Primitve) was designed to help us gain benefits from our Arrays. Vendors who didn’t support VAAI were frowned upon and those delivering on Continue Reading