On Wed, 26 Sep 2007, Jeff Bonwick wrote: > I would keep it simple. Let's call your 250GB disks A, B, C, D, > and your 500GB disks X and Y. I'd either make them all mirrors: > > zpool create mypool mirror A B mirror C D mirror X Y > > or raidz the little ones and mirror the big ones: > > zpool create mypool raidz A B C D mirror X Y > > or, as you mention, get another 500GB disk, Z, and raidz like this: > > zpool create mypool raidz A B C D raidz X Y Z
+1 All excellent solutions Also consider two pools, one a raidz and the 2nd a 2-way mirror. That way you can take advantage of the different operational characteristics of each pool: zpool create mypool raidz A B C D zpool create mirpool mirror X Y > Jeff > > On Wed, Sep 26, 2007 at 01:06:38PM -0700, Christopher wrote: >> I'm about to build a fileserver and I think I'm gonna use OpenSolaris and >> ZFS. >> >> I've got a 40GB PATA disk which will be the OS disk, and then I've got >> 4x250GB SATA + 2x500GB SATA disks. From what you are writing I would think >> my best option would be to slice the 500GB disks in two 250GB and then make >> two RAIDz with two 250 disks and one partition from each 500 disk, giving me >> two RAIDz of 4 slices of 250, equaling to 2 x 750GB RAIDz. >> >> How would the performance be with this? I mean, it would probably drop since >> I would have two raidz slices on one disk. >> >>> From what I gather, I would still be able to lose one of the 500 disks (or >>> 250) and still be able to recover, right? >> >> Perhaps I should just get another 500GB disk and run a RAIDz on the 500s and >> one RAIDz on the 250s? >> >> I'm also a bit of a noob when it comes to ZFS (but it looks like it's not >> that hard to admin) - Would I be able to join the two RAIDz together for one >> BIG volume altogether? And it will survive one disk failure? >> >> /Christopher >> >> >> This message posted from opensolaris.org >> _______________________________________________ >> 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 > Al Hopper Logical Approach Inc, Plano, TX. [EMAIL PROTECTED] Voice: 972.379.2133 Fax: 972.379.2134 Timezone: US CDT OpenSolaris Governing Board (OGB) Member - Apr 2005 to Mar 2007 http://www.opensolaris.org/os/community/ogb/ogb_2005-2007/ _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
