Hi Guys,
Any reason why CPU utilization on my snapmirror destination is always at 20%??? My production filer is much less than that. The Snapmirror only happens once per day. All other indicators seem idle. Here is a sample output:
CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache in out read write read write age 22% 0 0 0 1 1 65 59 0 0 4 20% 0 0 0 1 0 121 120 0 0 4 26% 0 0 0 1 1 336 59 0 0 3 22% 0 0 0 1 1 2017 472 0 0 3 23% 0 0 0 1 0 2461 413 0 0 3 22% 0 0 0 1 0 2334 182 0 0 3 24% 0 0 0 1 1 1307 206 0 0 3 20% 0 0 0 1 1 61 59 0 0 3 22% 0 0 0 1 0 123 118 0 0 3
Another question -- Is there a way I can monitor utilization/performance of NVRAM and Memory? What other perf commands can I use other than sysstat?
Thanks
If it's VSM and FlexVols, it might be deswizzling. I wouldn't worry much about it. There are back-end WAFL threads that run when nothing else runs. If actual work shows up, they back off. CPU isn't always a good performance indicator.
Most of the other commands are hidden and not very customer-friendly. Things like wafl_stat and statit will show you all sorts of things, but you pretty much need to be trained on them to read them properly.
-- Adam Fox NGS Tools Developer adamfox@netapp.com
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From: Steven Mandrake [mailto:srmanager@gmail.com] Sent: Tuesday, April 03, 2007 4:25 PM To: toasters@mathworks.com Subject: Snapmirror NTAP is at 20% constantly
Hi Guys,
Any reason why CPU utilization on my snapmirror destination is always at 20%??? My production filer is much less than that. The Snapmirror only happens once per day. All other indicators seem idle. Here is a sample output:
CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/s Cache in out read write read write age 22% 0 0 0 1 1 65 59 0 0 4 20% 0 0 0 1 0 121 120 0 0 4 26% 0 0 0 1 1 336 59 0 0 3 22% 0 0 0 1 1 2017 472 0 0 3 23% 0 0 0 1 0 2461 413 0 0 3 22% 0 0 0 1 0 2334 182 0 0 3 24% 0 0 0 1 1 1307 206 0 0 3 20% 0 0 0 1 1 61 59 0 0 3 22% 0 0 0 1 0 123 118 0 0 3
Another question -- Is there a way I can monitor utilization/performance of NVRAM and Memory? What other perf commands can I use other than sysstat?
Thanks
Steven,
Be default sysstat shows only the metrics below, try the following and send it back to the list:
sysstat -x 1
This will show all available usage including all available protocols.
On Apr 3, 2007, at 1:24 PM, Steven Mandrake wrote:
Hi Guys,
Any reason why CPU utilization on my snapmirror destination is always at 20%??? My production filer is much less than that. The Snapmirror only happens once per day. All other indicators seem idle. Here is a sample output:
CPU NFS CIFS HTTP Net kB/s Disk kB/s Tape kB/ s Cache in out read write read write age 22% 0 0 0 1 1 65 59 0 0 4 20% 0 0 0 1 0 121 120 0 0 4 26% 0 0 0 1 1 336 59 0 0 3 22% 0 0 0 1 1 2017 472 0 0 3 23% 0 0 0 1 0 2461 413 0 0 3 22% 0 0 0 1 0 2334 182 0 0 3 24% 0 0 0 1 1 1307 206 0 0 3 20% 0 0 0 1 1 61 59 0 0 3 22% 0 0 0 1 0 123 118 0 0 3
Another question -- Is there a way I can monitor utilization/ performance of NVRAM and Memory? What other perf commands can I use other than sysstat?
Thanks
-
Fox, Adam -
Shane Garoutte -
Steven Mandrake