write/read throughput with NFS client connected to F880

[LKHAIMOVICH]

I've got an older filer--F880 running ONTAP 7.1.3. When I mounted one of its volumes as an NFS share on my pretty new Linux box, I am getting only 2MB/s write tput. Both boxes are on the same LAN, so network shouldn't be a bottleneck. Is 2MB/s pretty much all one can get, or it can be increased? I played with some mounting options, but didn't see much difference. Below is an excerpt from "stats show -i 1 -n 300 volume:vol_10gb" when writing a 500MB file:

Instance avg_latency total_ops read_data read_latency read_ops write_data write_latenc write_ops other_latenc other_ops
                  ms        /s       b/s           ms       /s        b/s           ms        /s           ms        /s
vol_10gb        0.34        79         0            0        0    2588672         0.34        79            0         0
vol_10gb        0.32        76         0            0        0    2490368         0.32        76            0         0
vol_10gb        0.36        80         0            0        0    2523136         0.37        77         0.00         3
vol_10gb        0.34        67         0            0        0    2195456         0.34        67            0         0
vol_10gb        0.32        74         0            0        0    2424832         0.32        74            0         0
vol_10gb        0.32        67         0            0        0    2195456         0.32        67            0         0
vol_10gb        0.33        63         0            0        0    2064384         0.33        63            0         0
vol_10gb        0.32        67         0            0        0    2195456         0.32        67            0         0
vol_10gb        0.50         2         0            0        0      65536         0.50         2            0         0
vol_10gb        0.34        47         0            0        0    1540096         0.34        47            0         0
vol_10gb        0.33        72         0            0        0    2359296         0.33        72            0         0

What would be the ballpark value of write performance for FAS3270, for example?

[DOUGLASSIGGINS]

Curious what you are using to generate load.

I am getting the following on a FAS3050. The throughput I've seen on FAS32xx series is at least double.

stats show -i 1 -n 10 volume:mail08a

Instance avg_latency total_ops read_data read_latency read_ops write_data write_latenc write_ops other_latenc other_ops

                  ms        /s       b/s           ms       /s        b/s           ms        /s           ms        /s

vola        7.21      1766   1095921        10.28       59     259546         1.20        43         7.26      1664

vola        6.21      1957    513024         7.87       48    6074326         0.70       218         6.88      1691

vola        6.86      1915   1908548         9.16       80     154325         0.13        43         6.92      1792

vola       11.02      1525   6833587        11.35      253     215398         4.13        30        11.11      1242

vola        8.45      2297  11811749        10.18      414     248801         1.32        50         8.25      1833

vola        7.47      1935  12898086         8.08      451      57566         0.74        43         7.49      1441

vola        6.87      1651    792562         6.37       54     191804         1.02        48         7.07      1549

vola        7.29      1848   1430759         6.94       71     488807         0.55        58         7.53      1719

vola        8.30      1609   3471909         6.47      127     142184         1.17        39         8.65      1443

vola        7.29      1377    914089         8.03       63     127162         0.71        38         7.46      1276

[LKHAIMOVICH]

Thank you, Doug. In light of your data, 2MB/sec doesn't look too low for F880.