Hi All, I've been reading through the documentation for ZFS and have noted in several blogs that ZFS should support more advanced layouts like RAID1+0, RAID5+0, etc. I am having a little trouble getting these more advanced configurations to play nicely.
I have two disk shelves, each with 9x 300GB SCSI drives attached to a Dell PowerEdge 1850 with dual XEON CPUs and 4GB RAM running the 64-bit Solaris OS. Ideally, I would like to have a RAIDz-2 on each disk shelf and have a mirror between the two disk shelves so that my pool would remain available even if I lost the entire shelf. So far, I've been able to configure a single pool with two RAID-z volumes (one per shelf) in a stripe, though this doesn't help me if I lose one of the arrays. I've also been able to configure 4x 4-disk mirrors. e.g. zpool create zfsdata mirror c0t0d0 c0t1d0 c0t2d0 c0t3d0 mirror c0t4d0 c0t5d0 c0t8d0 c0t9d0 mirror c1t0d0 c1t1d0 c1t2d0 c1t3d0 mirror c1t4d0 c1t5d0 c1t8d0 c1t9d0 That gives me two mirrors per disk shelf (4 in total) but only 1.1TB of usable disk capacity. Is there any way to get the configuration I want, i.e. two raid-z2 volumes in a mirrored configuration? If anyone out there has some suggestions for a better configuration, please let me know :-). I'd like to be able to lose two disks per shelf before losing the shelf (if possible) but still be able to recover from a total array failure. Thanks in advance. Sincerely, Brett. This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
