Albert Chin writes: > On Sat, Apr 21, 2007 at 09:05:01AM +0200, Selim Daoud wrote: > > isn't there another flag in /etc/system to force zfs not to send flush > > requests to NVRAM? > > I think it's zfs_nocacheflush=1, according to Matthew Ahrens in > http://blogs.digitar.com/jjww/?itemid=44. >
Correct. So one might use this bit while waiting for the SYNC_NV complete solution. However setting zfs_nocacheflush=1 opens a small possibility of pool corruption because it bypassed the cache flushes around uerberblock updates. So definitely not something to use on non-NVRAM storage. It think it's really best find our how to disable the flushing at the storage array level which is more inline with what SYNC_NV proper fix does. -r > > s. > > > > > > On 4/20/07, Marion Hakanson <[EMAIL PROTECTED]> wrote: > > >[EMAIL PROTECTED] said: > > >> We have been combing the message boards and it looks like there was a > > >lot of > > >> talk about this interaction of zfs+nfs back in november and before but > > >since > > >> i have not seen much. It seems the only fix up to that date was to > > >disable > > >> zil, is that still the case? Did anyone ever get closure on this? > > > > > >There's a way to tell your 6120 to ignore ZFS cache flushes, until ZFS > > >learns to do that itself. See: > > > > > > http://mail.opensolaris.org/pipermail/zfs-discuss/2006-December/024194.html > > > > > >Regards, > > > > > >Marion > > > > > > > > >_______________________________________________ > > >zfs-discuss mailing list > > >zfs-discuss@opensolaris.org > > >http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > > > > > _______________________________________________ > > zfs-discuss mailing list > > zfs-discuss@opensolaris.org > > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss > > > > > > -- > albert chin ([EMAIL PROTECTED]) > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
