--On Wednesday, March 24, 2010 9:20 AM -0700 Freddie Cash
<fjwc...@gmail.com> wrote:
On Wed, Mar 24, 2010 at 8:47 AM, Michal <mic...@ionic.co.uk> wrote:
I wrote a really long e-mail but realised I could ask this question far
far easier, if it doesn't make sense, the original e-mail is bellow
Can I use ZFS to create a multinode storage area. Multiple HDD's in
Multiple servers to create one target of, for example, //officestorage
Allowing me to expand the storage space when needed and clients being
able to retrieve data (like RAID0 but over devices not HDD)
Here is an example I found which is where I'm getting some ideas from
http://www.howtoforge.com/how-to-build-a-low-cost-san-p3
Horribly, horribly, horribly complex. But, then, that's the Linux world.
:)
Server 1: bunch of disks exported via iSCSI
Server 2: bunch of disks exported via iSCSI
Server 3: bunch of disks exported via iSCSI
"SAN" box: uses all those iSCSI exports to create a ZFS pool
Use 1 iSCSI export from each server to create a raidz vdev. Or multiple
mirror vdevs. When you need more storage, just add another server full of
disks, export them via iSCSI to the "SAN" box, and expand the ZFS pool.
And, if you need fail-over, on your "SAN" box, you can use HAST at the
lower layers (currently only available in 9-CURRENT) to mirror the
storage across two systems, and use CARP to provide a single IP for the
two boxes.
If you were to do something like this, I'd make sure to have a fast local
ZIL (log) device on the head node. That would reduce latency for writes,
you might also do the same for reads. Then your bulk storage comes from
the iSCSI boxes.
Just a thought.
_______________________________________________
freebsd-stable@freebsd.org mailing list
http://lists.freebsd.org/mailman/listinfo/freebsd-stable
To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
