Those WD20EARS emulate 512 bytes sectors, so yes you can freely mix and match them with other "regular" 512 bytes drives. Some have reported slower read/write speeds but nothing catastrophic.
Or you can create a new 4K aligned pool (composed of only 4K drives!) to really take advantage of them. For that, you will need a modified zpool command to sets the ashift value of the pool to 12. See here: http://digitaldj.net/2010/11/03/zfs-zpool-v28-openindiana-b147-4k-drives-and-you/ http://www.solarismen.de/archives/5-Solaris-and-the-new-4K-Sector-Disks-e.g.-WDxxEARS-Part-2.html -- This message posted from opensolaris.org _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss