On Mon, 25 Jan 2010, Majed B. wrote:
Though I'm not sure if it's feasible to nest raids or have a disk to be
a member of 2 arrays at the same time.
I think the proposal is for the scenario when a drive is being upgraded to
a larger sized drive.
So:
1 Add spare X
2 Tell mdadm to replace drive N with the new spare
3 Information on N is now copied to X online
4 When copy is done, N and X contains the same info, and N is now
converted to spare by mdadm
5 Hot-remove N
This means if I want to upgrade from size to size+X drives I can do that
without ever degrading the array.
--
Mikael Abrahamsson email: swmike@xxxxxxxxx
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