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
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