IBM :How to deal with a large number of volumes

saitou

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.

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

@Pavel

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

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

saitou

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