My numbers from sgi origin2000 to sgi origin2000, with no router hops, came through at around 3Mbyte/sec over 100Mbit network and nfs. This was a for a transfer of a single 1GByte file.
Interested in filer specs when communicating with origins, and also with gigabit ethernet hardware (presumably the origins can deal with the overhead?).
nathan
Matt Harrington matt@ucsd.EDU writes:
I'm evaluating a NAS filer similar to the ones sold by NetApp and Auspex. This particular model is made by Nitech in Irvine, CA. These NFS vendors speak about benchmarks in ops/sec. It's more intuitive for me to think of benchmarks in terms of MB/sec throughputs for a large file write or read.
My quick-and-dirty tests show that I can write at 1.8 MByte/sec over a 100Mbit network using NFS v3. I can FTP at about 7 MByte/sec.
My question is: do these numbers seem reasonable? If not, what aspects of NFS should I tweak?
---matt
p.s. methods:
to make a 100MB file: dd if=/dev/zero of=/tmp/bigfile bs=1024 count=102400
time cp /tmp/bigfile /home/bigfile
(where /home is the NFS server).
Form an SGI Origin 2000 to Netapp F740, over 100Mbps Ethernet, I get 10MBytes/s consistent data transfer rate over nfs. However this is no good benchmark as the bottleneck here is ethernet speed and not filer. However if you can connect 3-4 NIC and get same performance an all four interfaces at the same time, this might suggest a very good performance.
rajeev
"Nathan O. Siemers" wrote:
My numbers from sgi origin2000 to sgi origin2000, with no router hops, came through at around 3Mbyte/sec over 100Mbit network and nfs. This was a for a transfer of a single 1GByte file.
Interested in filer specs when communicating with origins, and also with gigabit ethernet hardware (presumably the origins can deal with the overhead?).
nathan
Matt Harrington matt@ucsd.EDU writes:
I'm evaluating a NAS filer similar to the ones sold by NetApp and Auspex. This particular model is made by Nitech in Irvine, CA. These NFS vendors speak about benchmarks in ops/sec. It's more intuitive for me to think of benchmarks in terms of MB/sec throughputs for a large file write or read.
My quick-and-dirty tests show that I can write at 1.8 MByte/sec over a 100Mbit network using NFS v3. I can FTP at about 7 MByte/sec.
My question is: do these numbers seem reasonable? If not, what aspects of NFS should I tweak?
---matt
p.s. methods:
to make a 100MB file: dd if=/dev/zero of=/tmp/bigfile bs=1024 count=102400
time cp /tmp/bigfile /home/bigfile
(where /home is the NFS server).
-- N a t h a n O . S i e m e r s Bioinformatics Division of Applied Genomics Bristol-Myers Squibb Pharmaceutical Research Institute Hopewell Building 3B, P.O. Box 5400, Princeton, NJ 08543-5400 609 818-6568 siemersn@bms.com
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nathan＠dnase.hpw.pri.bms.com -
Rajeev Agrawala