The "limitations" section of the Wikipedia article on ZFS currently includes
the statement:
"You cannot mix vdev types in a zpool. For example, if you had a striped
ZFS pool consisting of disks on a SAN, you cannot add the local-disks as a
mirrored vdev."
As I understand it, this is simply wrong. You can add any kind of vdev to any
zpool. Right?
As I understand it, mixing vdev types is in general a bad idea. The reliability
of a zpool is dictated by its least reliable vdev and the performance of a
zpool tends to be limited by its lowest-performing vdevs. So mixing vdev types
tends to give you the worst of all possible worlds.
But this is merely a logical consequence of mixing storage types, not anything
to do with ZFS. Precisely analogous considerations would apply when setting up
RAID-10, for example.
Do I have that right?
Cheers,
Al.
--
This message posted from opensolaris.org
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
