We had to do this once using Lustre 1.4. The details will have changed slightly
for 1.6 no doubt but the basics are:
1) replace/reformat the bad RAID and mount/add to LustreFS
* you will now have lots of "0" byte files on your filesystem
2) generate a list of all files that were on the OST using "lfs find --obd
ost1d_UUID /mnt/lustre"
3) feed this list to "cpio" or similar to copy the files from your backup over
the "0-byte" files - they will be written to the empty OST
You'll need to flesh out the details from the manual depending on Lustre
1.4/1.6. With 1.6 you probably have to set the ost index manually to match the
old one in the mkfs.lustre command to stop it just adding a new OST.
Regards,
Daire
----- "Andrew Lundgren" <[EMAIL PROTECTED]> wrote:
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