Personally, I'd go with 4x raidz2 vdevs, each with 6 drives. You may not get as much raw storage space, but you can lose up to 2 drives per vdev, and you'll get more IOPS than with a 3x vdev setup.
Our current 24-drive storage servers use the 3x raidz2 vdevs with 8 drives in each. Performance is good, but not great (tops out at 300 MBps using SATA drives and controllers). This is using 2 12-port RAID controllers, so one of the vdevs is split across the controllers. If I could rebuild things from scratch, I'd go with 4x 8-port SATA controllers, and use 4x 6-drive raidz2, using a separate controller for each vdev. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
