FreeNAS vs OpenSolaris vs Nexenta ZFS Benchmarks

[Freddie Cash]

On Sun, Sep 12, 2010 at 2:40 PM, Josh Paetzel <josh at tcbug.org> wrote:
> I'm a tad confused about the whole "sharing a ZFS filesystem over iSCSI".  I
> thought iSCSI was used to eport LUNs that you then put a filesystem on with a
> client.

(Everyone here probably already knows this, but thought I'd pass it
along anyway.)

Correct.  You create ZFS volumes (zfs create -V), which appear as
block devices (/dev/zvol/poolname/volumename), which are then exported
via iSCSI to remote clients.

The remote clients then format the iSCSI LUN any way they please, with
any filesystem they want (treating it just like a normal, local
harddrive).

No ZFS filesystem is involved.

> iSCSI on FreeBSD is fairly slow compared to other solutions, I think there is
> some very preliminary work to fix that going on.

Using which target (iscsi-target or istgt)?  Or are they both slow?

-- 
Freddie Cash
fjwcash at gmail.com