You will get much better random IO with mirrors, and better reliability when a disk fails with raidz2. Six sets of mirrors are fine for a pool. From what I have read, a hot spare can be shared across pools. I think the correct term would be "load balanced mirrors", vs RAID 10.
What kind of performance do you need? Maybe raidz2 will give you the performance you need. Maybe not. Measure the performance of each configuration and decide for yourself. I am a big fan of iometer for this type of work. -Scott -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
