On 6/22/06, Jeff Bonwick <[EMAIL PROTECTED]> wrote:
> a test against the same iscsi targets using linux and XFS and the
> NFS server implementation there gave me 1.25MB/sec writes. I was about
> to throw in the towel and deem ZFS/NFS has unusable until B41 came
> along and at least gave me 1.25MB/sec.
That's still super slow -- is this over a 10Mb link or something?
Jeff
Nope, gig-e link (single e1000g, or aggregate, doesn't matter) to the
iscsi target, and single gig-e link (nge) to the NFS clients, who are
gig-e. Sun Ultra20 or AMD Quad Opteron, again with no difference.
Again, the issue is the multiple fsyncs that NFS requires, and likely
the serialization of those iscsi requests. Apparently, there is a
basic latency in iscsi that one could improve upon with FC, but we are
definitely in the all ethernet/iscsi camp for multi-building storage
pool growth and don't have interest in a FC-based SAN.
_______________________________________________
zfs-discuss mailing list
zfs-discuss@opensolaris.org
http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
