Are you using the latest IT mode firmware? (1.26.00 I think, listed above and without checking mine using AOC-USAS-L8i which uses same controller)
Also, I noticed you're using 'EARS' series drives. Again, I'm not sure if the WD10EARS drives suffer from a problem mentioned in these posts, but it might be worth looking into -- especially the last link: 1. On synology site, seems like older 4-platter 1.5TB EADS OK (WD15EADS-00R6B0), but newer 3 platter EADS have problems (WD15EADS-00P8B0): http://forum.synology.com/enu/viewtopic.php?f=151&t=19131&sid=c1c446863595a5addb8652a4af2d09ca 2. A mac user has problems with WD15EARS-00Z5B1: http://community.wdc.com/t5/Desktop/WD-1-5TB-Green-drives-Useful-as-door-stops/td-p/1217/page/2 (WD 1.5TB Green drives - Useful as door stops) http://community.wdc.com/t5/Desktop/WDC-WD15EARS-00Z5B1-awful-performance/m-p/5242 (WDC WD15EARS-00Z5B1 awful performance) Cheers, Simon http://breden.org.uk/2008/03/02/a-home-fileserver-using-zfs/ -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss