XFS/istgt backed 8TB xfs filesystem configuration?

[Mark Felder]

On Tue, 18 Sep 2012 07:42:14 -0500, John <jwd at freebsd.org> wrote:

>
> Have you found any blocksizes, cache sizes, etc, that seem optimal?
>

I'm providing iSCSI for XEN and VMWare servers and currently have no  
optimal tunings. ZFS's variable block size seems to handle the load just  
fine, and I have plenty of SSDs doing work for me. Just make sure you have  
carefully calculated the number of Connections and Sessions for istgt --  
your multipath and number of LUNs being shared will affect these numbers.