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Tag: vmfs

Cloud Native Storage – vSAN only? Not at all!

Cloud Native Storage is in everyone’s heads at the latest after VMworld. However, many are of the opinion that VMware CNS would only run on vSAN storage. But that’s wrong.
This article will show how Cloud Native Storage can be operated with VMFS or NFS storage.

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reclaim deleted blocks in VMFS on thin-provisioned LUNs

In vSphere 5.5 and 6.0 a new command was given to esxcli. With this command you can reclaim deleted blocks on thin-provisoned LUNs.

You could run the mechanism in production time. This might sound good…. Our maintainance windows gets smaller and smaller with every new service and if you could do maintainance when everybody could work is that great.

BUT one moment!

The ESXi host which runs the reclaim would get very high cpu usage and might costops VMs within the host. Especially the first run will take a lot of time.

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