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jeremypage
Enthusiast
Enthusiast

When I add or migrate a VM, how does vSphere order the data stores?

I have a SAN with 15k, 10k and SATA disks in it. I've noticed that it always presents the volumes in a specific order - the faster disks are always presented first. Is this because it some how knows or because the volumes mounted on them are presented in alphabetical order?

I know this is a dumb questions but one of my continual annoyances is the lack of visibility re:storage IO since I'm using NFS as my storage protocol. It just happens that the storage groups are in alphabetical order. Odd coincidence (only if you take the entire thing into account - host://share)

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AndreTheGiant
Immortal
Immortal

faster disks are always presented first. Is this because it some how knows or because the volumes mounted on them are presented in alphabetical order

The second one.

ESX does not know the real LUN speed... it can see the used throughput, but it could change.

Andre

Andrew | http://about.me/amauro | http://vinfrastructure.it/ | @Andrea_Mauro
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