I don't think adding an SSD mirror to an existing pool will do much for performance. Some of your data will surely go to those SSDs, but I don't think the solaris will know they are SSDs and move blocks in and out according to usage patterns to give you an all around boost. They will just be used to store data, nothing more.
Perhaps it will be more useful to add the SSDs as either an L2ARC or SLOG for the ZIL, but that will depend upon your work load. If you do NFS or iSCSI access, the putting the ZIL onto the SSD drive(s) will speed up writes. Added to the L2ARC will speed up reads. Here is the ZFS best practices guide, which should help with this decision: http://www.solarisinternals.com/wiki/index.php/ZFS_Best_Practices_Guide Read that, then come back with more questions. Best, Scott -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
