2 Replies Latest reply: Mar 5, 2013 11:23 AM by LKHAIMOVICH RSS

write/read throughput with NFS client connected to F880

LKHAIMOVICH
Currently Being Moderated

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?

  • Re: write/read throughput with NFS client connected to F880
    DOUGLASSIGGINS
    Currently Being Moderated

    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

More Like This

  • Retrieving data ...