On Monday 07 February 2005 10:59, Velu Erwan wrote: > Hi folks, > I've been trying to understand the way I can tune my GFS 6.0.2 > configuration. > I've found I can play using the setflag options which can change the > exhash, jdata, unused, ea_indirect, directio, inherit_directio & > inherit_jdata > > I know about direct_io and its inherit_directio regarding > http://www.redhat.com/docs/manuals/csgfs/admin-guide/s1-manage-direct-io.ht >ml > > jdata are also decribes by > http://www.redhat.com/docs/manuals/csgfs/admin-guide/s1-manage-data-journal >.html > See also section 9.4: http://www.redhat.com/docs/manuals/csgfs/admin-guide/s1-manage-quota.html If you are not using quotas you can turn this off which should reduce overhead some. Another thing you can try is mounting with noatime (-o noatime): http://www.redhat.com/docs/manuals/csgfs/admin-guide/s1-manage-atimeconf.html#S2-MANAGE-MOUNTNOATIME > But I didn't find anything for the other values. > What are theses options ? > > I have the same questions regarding the gettune option which print a > lots of value which seems undocumented. > > Could someone give me some help for understanding their behaviours ? > Regards,
