[Lustre-discuss] OST 1.6.6->1.8.3 upgrade

[Heiko Schröter]

Am Dienstag 27 Juli 2010, um 18:41:24 schrieben Sie:

> > 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=mds1 at tcp0 /dev/sdb
> > now upgrading:
> > tunefs.lustre --param="failover.mode=failout" --fsname lustre --ost --mgsnode=mds1 at 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'.

Could this "option" make into the docs ?
Chapter 13.2.4.2 of lustre 1.8 OP Manual reads a bit different, well, to me at least.
An info that tunefs.lustre is only required when changing params would be nice.

Thanks and Regards
Heiko