On 2015/01/29, 12:34 PM, "Bob Ball" <[email protected]> wrote:
>This is Lustre 2.1.6. > >I did a dumb thing. I reformatted a drained OST BEFORE I saved off >appropriate data to re-establish it at its old index. I don't know what >I was thinking? The files that I would normally restore are, >LAST_ID >last_rcvd >mountdata >umt3-OST0020 > >I know how to recreate the correct LAST_ID. And, as this happened over >a year ago on this same OST, I have old copies still of each of the >others. I know that "mountdata" is created when I created the lustre >file system, so I would guess I can just continue to use that file. > >My question, can I simply re-use these other, old file copies when I am >ready to once again put a Lustre file system on this volume? The mountdata file should be the same. The last_rcvd file will be recreated during mount if it is missing, though the old one could also be used. The umt3-OST0020 config file would be recreated with a --writeconf, but it may also be created automatically during mount if missing (it is an OST-local copy of the MGS file of the same name so the OST can mount even if the MGS is offline). Cheers, Andreas -- Andreas Dilger Lustre Software Architect Intel High Performance Data Division _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
