HenrikElm
Contributor
Contributor

VMFS 3.31 expandable?

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Can VMFS 3.31 datastores be expanded after upgrade to vSphere, or can only the new 3.33 (?) vSphere VMFS be dynamically expanded?

/Henrik

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HenrikElm
Contributor
Contributor

I just tried it out. I can confirm that I could expand the VMFS 3.31 volume with a running VM on it when I connect to the host directly. No problems so far.

Strange that it can't be done via VC with 3.31? If I tear it down and recreate a brand new 3.33 volume, I CAN expand it via VC... Ah well...

/Henrik

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Smeagol
Enthusiast
Enthusiast

Hmm, after just doing this myself, I suspect what it is doing in effect is adding an extent by creating a new partition on the free space and extending the existing volume. Still a step forward in that it lets you use free space on an existing volume instead of insisting on a new LUN.

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mikrowiz
Contributor
Contributor

I don't think so. There's a limit on the number of extents you can add, but I don't believe there's a limit on the number of times you can expand the volume. I suspect what it is doing is more like what gparted or the resizing in Windows 2008 does, which is to actually increase the size of the partition.

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