Hi again,
Thanks to:
Howard Arnold
Brian Staub
Frank-Peter Reich
Edward Branley
for their prompt replies.
The consensus seems to be that I will need to rebuild the volume.
I like the last suggestion, as this gives me some scope to either add a
similar device to create a new 8 disk plex, or try something similar
with 9Gb or 18Gb disks that would allow for more expansion in the
future.
Regards,
Tony.
Q:
I have a striped LSM volume made up of one plex containing 7 subdisks.
Each subdisk is made from a 4Gb disk.
What I'd like to know is, can I add another 4Gb disk (or plex of equal
size) to this volume, or do I need to dump everything off, create a new
volume with 8 striped sub-disks, and restore it all back again?
A:
I'm asuming, the problem is the filesystem.
In my experience it don't like the change of the size of the underlaying
volume.
If You are using AdvFS my hint is to use the advanced utility "addvol".
So
You can
increase (and degrease) the size of filesystems<
Unfortunately you will need to vdump everything and recreate the stripe
volume then restore it<
I'm afraid you'll have to recreate your stripe set. If it had been
concatenated, you would have no problem adding another disk. Striped
sets
need to be rebuilt<
Hi, Tony. Yes, you got it right. If you have the luxury of another
28GB of space and you have your stripe set in an AdvFS domain, you could
possibly do an addvol to the domain of the new space, freeing up the LSM
volume (via rmvol). Then you can break down the 7-disk set and re-build
it an 8-disk set. Do an other addvol to add the LSM volume back, then a
rmvol on the other disks. That's the best way I can think of to keep
from being down. If you're using UFS, you could make another plex for
this volume and mirror it, but that's slow if you're on AdvFS<
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Received on Wed Nov 22 2000 - 14:19:32 NZDT