> On Fri, Nov 19, 2010 at 9:30 AM, Peter <fb...@peterk.org> wrote: > >> I tend to stay away from raid cards. With ZFS pools all you need is ZFS >> and any OS [easily move drives around servers], vs. raid cards have to >> be >> the same if moving/replacing/card fails. >> >> With 'ZFS: do not give it all your HDD' >> [ http://www.freebsddiary.org/zfs-with-gpart.php ] >> You don't even need to have drives that are exactly the same. >> >> Completely not tied to any hardware.... >> > > Wow! I'm learning more and more and I'm really beginning to like ZFS! > > Question: What happens if 1 drive out of say 4 fails in a pool? And what > about hotswapping a (faulty) drive? Is this still possible with ZFS? Can I > actually replace a Raid 5 setup with a ZFS settup and have the same data > security if drives fail?' > > Cheers, > Andy
Easily can be done. zpool mirror on a desktop, I recently just did a 'zpool offline' one of the drives, unplugged it from my sata port, plugged in another drive, and put it into the pool - all with desktop running. No esata, just cheap sata controller [biostar mobo] with AHCI enabled in BIOS and loader.conf. [My version of cheap esata and "offsite backups"] Make sure to use labels when adding drives to pool. With gpart labels, I can plug a drive into any port and FreeBSD/ZFS will pickup the label and no need to worry about putting drives into correct port/controller. You might want to try raidz instead of raid-5, but I've no experience with that except for what I've read. [ http://en.wikipedia.org/wiki/RAID-Z#RAID-Z ] ]Peter[ _______________________________________________ freebsd-questions@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-questions To unsubscribe, send any mail to "freebsd-questions-unsubscr...@freebsd.org"
