A pool with a 4-wide raidz2 is a completely nonsensical idea. It has the same amount of accessible storage as two striped mirrors. And would be slower in terms of IOPS, and be harder to upgrade in the future (you'd need to keep adding four drives for every expansion with raidz2 - with mirrors you only need to add another two drives to the pool).
Just my $0.02 On 19 March 2010 18:28, homerun <petri.j.kunn...@gmail.com> wrote: > Greetings > > I would like to get your recommendation how setup new pool. > > I have 4 new 1.5TB disks reserved to new zpool. > I planned to crow/replace existing small 4 disks ( raidz ) setup with new > bigger one. > > As new pool will be bigger and will have more personally important data to > be stored long time, i like to ask your recommendations should i create > recreate pool or just replace existing devices. > > I have noted there is now raidz2 and been thinking witch woul be better. > A pool with 2 mirrors or one pool with 4 disks raidz2 > > So at least could some explain these new raidz configurations > > Thanks > -- > This message posted from opensolaris.org > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss >
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