IBM :How to deal with a large number of volumes

saitou
saitou
in IBM
I want to retrieve information about DS8000 storage.

The number of volumes in the target storage exceeds 40000.
Is there any solution for the following two problems?
1.  It is taking 50 minutes for "load_ds8perf.sh" to complete.
2.  "load.sh" times out and the UI does not show the DS8000 information.

Comments

  • Pavel
    Pavel
    Hi,

    definitelly no way for 40k volumes, it is imposible to monitor in the range we do (like each volume data/IOPS/latency) via DSCli in 5 minutes time range, it take 50 minute as you tested.

    No further suggestions, as IBM hows to cope with that ...
    Here you can see perf cmds we use for DSCli:
    /home/stor2rrd/stor2rrd/tmp/storage alias.ds8perf.scr

    If most of them are CKD volumes then we have a workaround which is able to exclude them to make working at least Open ones, let us know.



  • saitou
    saitou
    Thank you for the answer.

    >If most of them are CKD volumes then we have a workaround which is able to exclude them to make working at least Open ones, let us know.

    Could you please tell me exactly how to do the workaround you commented on?


  • Pavel
    Pavel
    cd /home/stor2rrd/stor2rrd
    umask 022
    echo "export DS8K_CKD_SKIP=1"  >> etc/.magic


  • saitou
    saitou
    Thank you PAVEL.
    I was able to exclude the CKD volume and deal with it.
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