On Thu, Dec 7, 2017 at 12:51 PM, Maor Lipchuk <mlipchuk@redhat.com> wrote:

On Thu, Dec 7, 2017 at 9:10 AM, Richard Chan <richard@treeboxsolutions.com> wrote:
What is the best practice for iSCSI storage domains:

Many small targets vs a few large targets?

Specific example: if you wanted a 8TB storage domain would you prepare a single 8TB LUN or (for example) 8 x 1 TB LUNs.

There could be many reasons to use each type.
From the top of my head I think that configuration wise it will be better to configure more than one lun.
That can be helpful if you plan to use external LUN disks for example.

Multiple targets might also come useful if you plan to configure iSCSI multipath in the future, that way you can choose only part of the targets to apply the MPIO on.

That only makes configuration more complex.

I think for 8TB, a single LUN should suffice.

--
Richard Chan

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