Hi freebsd-questions, For personal use (photo/video storage), I'm looking into creating a huge single ZFS (raidz) volume that will replace my current collection of drives used as storage. I'm thinking 4*1TB drives in RAID5(z).
My question is regarding the flavour of drivers that one can choose from: Desktop class drives, or the so called RAID/Enterprise class drives. The difference between the two being the way such a drive handles the bad-sector/block handling and remapping. I understand that Desktop class drives do all this internally, and this is a process that can take up to
60s (even minutes on some), and during this process the drive is
unavailable to the controller. The RAID edition drives all appoach this differently and alot faster, typically before 8 seconds. How does ZFS handle this? Should I be looking for the RAID class drives or can Desktop class drives be used here? My worry is of course that such a drive (destkop class) will be marked defective and thrown out of the raid volume if a remapping of bad sectors occurs and the drive will be unresponsive to the controller/ZFS for > 8 seconds. Some drives can be configured in this area, but not all, and there's quite a price difference in the two, the desktop class being up to 50% cheaper in some cases.. Anybody that can shed some light on this? Thanks, -- Frederique _______________________________________________ [email protected] mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "[email protected]"
