tron...@gmail.com said: > That said, I've already migrated far too many times already. I really, really > don't want to migrate the pool again, if it can be avoided. I've already > migrated from raidz1 to raidz2 and then from raidz2 to mirror vdevs. Then, > even though I already had a mix of 512b and 4k discs in the pool, when I > bought new 3TBĀ discs, I couldn't add them to the pool, and I had to set up a > new pool with ashift=12. In retrospect, I should have built the new pool > without the 2TB drives, and had I known what I do now, I would definately > have done that.
Are you sure you can't find 3TB/4TB drives with 512b sectors? If you can believe the "User Sectors Per Drive" specifications, these WD disks do: WD4000FYYZ, WD3000FYYZ Those are the SATA part-numbers; There are SAS equivalents. I also found the Hitachi UltraStar 7K3000 and 7K4000 drives claim to support 512-byte sector sizes. Sure, they're expensive, but what enterprise-grade drives aren't? And, they might solve your problem. Regards, Marion _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss