Do you have any older benchmarks on these cards and arrays (in their pre-ZFS life?) Perhaps this is not a ZFS regression but a hardware config issue?
Perhaps there's some caching (like per-disk write-through) not enabled on the arrays? As you may know, the ability (and reliability) of such cache often depends on presence of battery back-up (BBU) modules on an array controller. It is also often pointed out that ZFS prefers raw disks instead of hardware vendors' RAID arrays (with possible errors crawling into data bits and undetected by the firmware's algorithms unless the whole disk breaks, or errors related to bugs in the firmware itself - in more elaborate conspiracy theories). Due to this it is often recommended to use external RAID implementations as vdev's to a redundant ZFS pool (such as a mirror of two equivalent arrays). //Jim -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
