On Mon, 19 Oct 2009, Pawe? Brodacki wrote:
You cannot grow an array on ServeRAID by replacing smaller drives with
bigger ones. If you do such a replacement the drive size will be
"clipped". That means if you have 5x36 GB drive, remove one, and put in
a 140 GB drive, only 36 GB out of it will be used. I'm pretty sure this
will also happen if you try to extend the array by adding bigger drives
to the already existing array.
The only way is to tear the array down and re-define it with bigger drives.
Just to give input from some other vendor, when I asked 3ware the same
question they said they could take some dump from the config of the 3ware
controller, process it, and then you put it back in, and it would support
the larger drives. Ie, this seems to be something the hw raid crowd
doesn't feel is an important method of storage migration to support.
--
Mikael Abrahamsson email: swmike@xxxxxxxxx
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