This is what our tagline of Simply Faster means. The performance is there, and is simple to use.
root@dv4:~# mount -o intr,rsize=262144,wsize=262144,tcp 10.1.3.1:/data /data2
root@dv4:~# ls -alF /data2
drwxr-xr-x 2 root root 21 2009-07-10 11:01 ./
drwxr-xr-x 23 root root 4096 2009-07-10 17:18 ../
-rw-r--r-- 1 root root 68719476736 2009-07-10 13:07 big.file
root@dv4:~# dd if=/data2/big.file of=/dev/null bs=16M
4096+0 records in
4096+0 records out
68719476736 bytes (69 GB) copied, 110.876 s, 620 MB/s
and on the JR4
[root@jr4s ~]# cat /etc/exports
Caching impacts not relevant, as the 69GB is larger than both the JR4 and DV4 ram, and the disk on the JR4 feeding this DV4 over NFS is so much faster than the fabric, that storing it in ram wouldn’t do much, even if you could fit it all in.
No tuning on the 10 GbE cards, this bit rate is roughly half what they can do. Will be working to get over 1 GB/s NFS later on this weekend.