On Wed, Jun 24, 2009 at 6:32 PM, Simon Breden<no-re...@opensolaris.org> wrote: > FIRST QUESTION: > Although, it seems possible to add a drive to form a mirror for the ZFS boot > pool 'rpool', the main problem I see is that in my case, I would be > attempting to form a mirror using a smaller drive (30GB) than the initial > 160GB drive. > Is there an easy solution to this problem, or would it be simpler to just do > a reinstall of OpenSolaris 2009.06 onto 2 brand new 30GB SSDs? I have the > option of the fresh install, as I haven't invested much time in configuring > this OS2009.06 boot environment yet.
Depends on how you define "easy". Due to the smaller new drive, you can't use "zpool replace". Some people will find this easy enough : http://www.solarisinternals.com/wiki/index.php/ZFS_Troubleshooting_Guide#ZFS_Root_Pool_Recovery Others might find it's too complicated, and opt for reinstall plus "zpool attach" > > SECOND QUESTION: > I also want the possibility to have multiple boot environments within > OpenSolaris 2009.06 to allow easy rollback to a working boot environment in > case of an IPS update problem. I presume this will not cause any additional > complications? Correct. > THIRD QUESTION: > This is for a home fileserver so I don't want to spend too much, but does > anyone see any problem with having the OS installed on MLC SSDs, which are > cheaper than SLC SSDs. I'm thinking here specifically about wearing out the > SSD if the OS does too many writes to the SSDs. zfs is SSD-friendly due to it's copy-on-write nature. Having a mirror also provide additional level of protection. -- Fajar _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
