On Mar 15, 2010, at 7:11 PM, Tonmaus <sequoiamo...@gmx.net> wrote:
Being an iscsi
target, this volume was mounted as a single iscsi
disk from the solaris host, and prepared as a zfs
pool consisting of this single iscsi target. ZFS best
practices, tell me that to be safe in case of
corruption, pools should always be mirrors or raidz
on 2 or more disks. In this case, I considered all
safe, because the mirror and raid was managed by the
storage machine.
As far as I understand Best Practises, redundancy needs to be within
zfs in order to provide full protection. So, actually Best Practises
says that your scenario is rather one to be avoided.
There is nothing saying redundancy can't be provided below ZFS just if
you want auto recovery you need redundancy within ZFS itself as well.
You can have 2 separate raid arrays served up via iSCSI to ZFS which
then makes a mirror out of the storage.
-Ross
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