On Sun, 2008-03-30 at 21:33 -0700, Omen Wild wrote: > Quoting Tim Spriggs <[EMAIL PROTECTED]> on Fri, Mar 28 12:08: > > > > raidz root will work in Nexenta when it works in vanilla Open Solaris. > [ snip ] > > The zfs-discuss archives might have more information on this. > > Good to know, and thanks for the pointer, I will definitely check the > list out. > > > I would suggest that you keep your entire root filesystem on the > > mirror. apt-clone relies on this assumption in order to rollback > > packaging decisions and does not snapshot/clone other filesystems. > > This raises a couple more questions about how pools work (I may be > wondering into ZFS only territory here). Say I create a 100GB 3-way > mirror, and that becomes syspool. The other 900GB disk partitions would > go into a raidz. Would that be a new pool with a name of my choice? Is > there an easy upgrade path when Open Solaris supports raidz boot besides > wipe and re-install? From what I have read I could drop one disk out of > the raidz, re-add the entire disk into the raidz, and repeat for the > other 2 disks? Would that work? > > Also, would I need to make the 3x100GB partitions be a straight mirror, > or could I make it a pool and tell ZFS to keep at least 2 copies of the > data, that way it would survive 1 disk failing, but is still a mirror > (of sorts). Can GRUB boot from that kind of "mirror"? Is it fully > robust against a single disk failure? From the zfs blogs it seems as > if both copies could end up on the same disk... > > Quoting Erast Benson <[EMAIL PROTECTED]> on Fri, Mar 28 12:16: > > > > I calculated this number recently - your syspool need to have ~ > > (DownloadSize x 6) of free space.. > > > > For typical ON upgrade, it could be 600MB...900MB. To be on a safe side, > > always check that 'zfs list syspool' command shows >= 1GB of AVAIL > > Excellent to know, thanks for the info. > > I seem to be missing an acronym, what is ON?
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