On Mon, Mar 15, 2010 at 9:10 PM, Ross Walker <rswwal...@gmail.com> wrote:
> 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 > > Perhaps I'm remembering incorrectly, but I didn't think mirroring would auto-heal/recover, I thought that was limited to the raidz* implementations. --Tim
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