> From: zfs-discuss-boun...@opensolaris.org [mailto:zfs-discuss-
> boun...@opensolaris.org] On Behalf Of Alvin Lobo
> 
> Is there a way that i can add one HDD from server A and one HDD from
> server B to a zfs pool so that there is an online snapshot taken at
> regular intervals. hence maintaining a copy on both HDD's.

You could use iscsi, and mirror a local disk against the remote disk.
Hence, at all times, the "live" filesystem is present on both servers (but
it's only usable by one server at a time.)

You could "zfs send" the local filesystem, on regular intervals, to the
remote server.  Then you've got a read-only snapshot of the filesystem which
is readable on the remote server.  It only needs to be read-only as long as
you are planning to receive future incremental snapshots.  If you needed to
make the remote server read-write, you could.

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