On Jul 27, 2010, at 5:02 AM, Heiko Schröter wrote: > Hello, > > > running tunefs.lustre during the upgrade, do i have to add the "--param" > option when it has been used during the creation fo the fs ? > > i.e. lustre fs during creation: > mkfs.lustre --param="failover.mode=failout" --fsname lustre --ost > --mkfsoptions='-i 2097152 -E stride=16 -b 4096' --mgsnode=m...@tcp0 /dev/sdb > now upgrading: > tunefs.lustre --param="failover.mode=failout" --fsname lustre --ost > --mgsnode=m...@tcp0 /dev/sdb
You actually don't need to run tunefs unless you are changing something. Additionally, all parameters should be "sticky" across tunefs; you can see the current settings with 'tunefs --print', add new parameters with 'tunefs --param', and erase all old params with 'tunefs --erase'. > A "-writeconf" is not intended during the upgrade. In that case, most tunefs changes won't impact anything anyhow :) > How long will it take (approx) to "tunefs" an 8TB OST partition ? No time. There's nothing that is done to the disk format during tunefs, just the modification of a single config file. > > Thanks and Regards > Heiko > _______________________________________________ > Lustre-discuss mailing list > [email protected] > http://lists.lustre.org/mailman/listinfo/lustre-discuss _______________________________________________ Lustre-discuss mailing list [email protected] http://lists.lustre.org/mailman/listinfo/lustre-discuss
