From: Green, Simon (Simon.Green@EU.ALTRIA.COM)
Date: Wed Oct 15 2003 - 05:32:22 EDT
I assume we're talking about LVM mirroring here?
No need to break the mirror, provided there's a spare slot in the SSA
drawer. Just use migratepv.
If it's just necessary to replace a faulty drive, and there are no 4.5GB
disks available, then it's perfectly acceptable to mirror onto a different
size disk. You can even use the extra space, if you want.
Simon Green
Altria ITSC Europe Ltd
AIX-L Archive at http://marc.theaimsgroup.com/?l=aix-l&r=1&w=2
AIX FAQ at http://www.faqs.org/faqs/aix-faq/
N.B. Unsolicited email from vendors will not be appreciated.
> -----Original Message-----
> From: cbaker@GOODYEAR.COM [mailto:cbaker@GOODYEAR.COM]
> Sent: 14 October 2003 22:00
> To: aix-l@Princeton.EDU
> Subject: Re: Replacing SSA Drives
>
>
> Can you mirror two different size disks?
>
> Even if you can, if your purpose was to have more space to enlarge a
> filesystem that is on this drive, your would need the same
> additional space
> on the mirrored copy to be able to enlarge it.
>
> I guess you would want to break the mirror, take one drive
> out and replace
> it with the larger drive. Mirror again from the small to the
> large. Break
> the mirror. Enlarge the filesystem on the larger drive.
> Remove the other
> smaller drive and replace it with a larger drive too. Then
> re-mirror from
> large drive (with enlarged filesystem) to 2nd large drive. Done
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