Thomas Arthur Oehser <tom@xxxxxxxx> writes:
>> Putting swap in a raid-0 will hang your computer as soon as sda, sdb or
>> sdc fails.
>> Are you OK with that?
>
> I'll move the swap to the partitions then, though it is a moot point as
> the machine has 4G physical RAM and runs with a load such that usually
> about 2G is cache... I assume that if it never swaps, it never matters.
Make it 2GB raid1 for swap then.
> But what I care about is the raid-5 shrinking issue... does anyone know
> if there is a reasonably safe way to shrink a raid-5 device (size, not
> number of drives) that is superblock format 0.90? I assume the --grow
> just forces the superblock based on the _device_, but if I shrank the
> _device_ before I shrank the raid, it wouldn't find the superblock in
> the first place...
>
> -Tom
- shrink the raid
- fail+remove sda3
- make sda3 smaller
- add sda3 and resync
- repeat for sdb and sdc
You should have used LVM on your raid5. Makes suck things so much simpler.
MfG
Goswin
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