[EMAIL PROTECTED] wrote:
That's the dilemma, the array provides nice features like RAID1 and
RAID5, but those are of no real use when using ZFS.
RAID5 is not a "nice" feature when it breaks.
A RAID controller cannot guarantee that all bits of a RAID5 stripe
are written when power fails; then you have data corruption and no
one can tell you what data was corrupted. ZFS RAIDZ can.
That depends on the raid controller. Some implementations use a log
*and* a battery back up. In some cases the battery is a embedded UPS of
sorts to make sure the power stays up long enough to take the writes
from the host and get them to disk.
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
