Unable to expand the vdisk - An invalid device was specified

[David Dimbleby]

Morning.

We have an MSA2312fc with an additional 4 x disk enclosures that's been behaving as expected up until now.  Had a failed disk which has been replaced and is being reported as OK.  Need to re-expand the Vdisk to use this disk, but each time I attempt to this I get a failure message saying 'Unable to expand the vdisk - An invalid device was specified'.

The Vdisk was/is a 3 drive (300GB SAS) RAID5 set with one volume using the entire available space.  To eliminate the replacement disk as the issue, I tried expanding it across one of the other available drives in one of the other enclosures, but I get the same failure message.  I've even made sure that all the relevant disk are owned by the same controller but still get the same results.

Any assistance welcome.

Thanks

[David Dimbleby · Accepted solution]

Spoke to HP - Great guys.  As the Vdisk was critical, I just had to add the new/replacement disk as a 'dedicated spare', and it started the rebuild automatically.