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vmware

DRS Woes? The doctor is in!

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DRS Woes? The doctor is in!

DRS_DoctorI’ve recently been troubleshooting DRS behavior for some of my specific VMware clusters and came across this little nugget:

https://labs.vmware.com/flings/drsdoctor

From 10,000 ft. it looks like the utility runs in an active monitoring state. It first sets the DRS automation level to “Partially Automated”, then monitors DRS recommendations as they filter in. From here it can grab data about the reason a particular action is being recommended, along with performance stats of the guest and host at the time of the recommendation. Hats off to the team that created this handy troubleshooting utility!

Stay tuned as I have some more fancy DRS troubleshooting tools and tips coming soon…

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powershell/powercli

PowerCLI VMWare Snapshot Report

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Remember that application update you were doing at 2AM three months ago? You know, the one where step 1 in your change document was to take a VMWare snapshot of the VM you were about to make changes to? Of course you do, because you’re a good admin like that. We’ve all been there, you take a snapshot of a VM and after a successful change you jump right to the “Miller time” step, completely disregarding the “remove snapshot step”. Well instead of being reminded that you left that snapshot hanging out there with a full datastore, you should schedule this report to run daily or weekly and save yourself the headache.

You can download the script or view the source from my git repo.