The results are in: My timeout issue is definitely the WD10EARS disks. Although differences in the error rate was seen with different LSI firmware revisions, the errors persisted. The more disks on the expander, the higher the number with iostat errors. This then causes zpool issues (disk failures, resilvering etc.)
I replaced 24 of them with ST32000542NS (f/w CC34), and the problem departed with the WD disks. Full scrub of 1.5Tb, not one error seen anywhere. WD has chosen to cripple their consumer grade disks when used in quantities greater than one. I'll now need to evaluate alternative supplers of low cost disks for low end high volume storage. Mark. -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
