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DHoffman2

2 Intern

 • 

306 Posts

874

June 22nd, 2011 07:00

Using TOP ans SAR

I opened a CHAT with EMC support about how to monitor CPU processes and utilization on any given Celerra.  I had an issue where the CPU on the Celerra was running 95% and I want to know what processes might be causing this to run so high.

The tech on the other end suggested using TOP and/or SAR.

I followed that question with another asking what do the Commands mean in TOP?  Here is an example of what I mean.

Header 1

top - 10:49:07 up 283 days,  2:38,  1 user,  load average: 0.39, 0.36, 0.41


Tasks: 201 total,   1 running, 196 sleeping,   0 stopped,   4 zombie


Cpu(s): 15.2% us, 22.2% sy,  0.0% ni,  0.0% id, 62.6% wa,  0.0% hi,  0.0% si


Mem:   2076136k total,  2000168k used,    75968k free,    71688k buffers

Swap:  2096440k total,   370432k used,  1726008k free,   290808k cached

PID USER      PR  NI  VIRT  RES  SHR S %CPU %MEM    TIME+  COMMAND

3165 root      15   0     0    0    0 S  7.3  0.0 561:19.91 nd-clnt 0 1
30622 nasadmin  15   0 12632 6428 5416 S  6.0  0.3   0:00.18 naviseccli.bin
3168 root      15   0     0    0    0 S  3.3  0.0 277:07.05 nd-sndd 0 1
12483 nasadmin  17   0  3392 1052  736 R  0.7  0.1   0:07.25 top
4931 root      15   0 77516 1540 1224 S  0.3  0.1  21:47.44 nas_boxmonitor
    1 root      16   0  2128  544  456 S  0.0  0.0   0:05.96 init
    2 root      34  19     0    0    0 S  0.0  0.0   0:35.95 ksoftirqd/0
    3 root       5 -10     0    0    0 S  0.0  0.0   0:20.48 events/0
    4 root      11 -10     0    0    0 S  0.0  0.0   0:00.00 khelper

1811 root      15   0     0    0    0 S  0.0  0.0   4:11.07 kjournald

Sorry about the formatting...

So I asked where I can find documentation about the things listed in the COMMAND column such as kjournald or ksoftirqd/0 (items BOLDED above).  They could not provide me with any of that information.

Does anyone know where I might find this info?

dynamox

9 Legend

 • 

20.4K Posts

June 22nd, 2011 10:00

server_stats server_2 –summary basic

dynamox

9 Legend

 • 

20.4K Posts

June 22nd, 2011 10:00

they told you to run "top" and "sar" ?  ..what you are looking at is data on the control station, not the datamovers themselves.

DHoffman2

2 Intern

 • 

306 Posts

June 22nd, 2011 10:00

Thanks, not sure how I missed that command out of the command reference guide...

DHoffman2

2 Intern

 • 

306 Posts

June 22nd, 2011 10:00

So, does anyone know how to view CPU utilization on "SERVER_2"?

DHoffman2

2 Intern

 • 

306 Posts

June 22nd, 2011 10:00

THATS what I thought... here is an excerpt from the conversation.

david.hoffman: "CPU was running 95%, need to find out what processes on the Celerra was running"

Agent (Vanitha N): "Thank you for contacting EMC Customer Service. My name is Vanitha N."

Agent (Vanitha N): "Hello David"

david.hoffman "Hello, I'm trying to find the command that will display the processes on the Celerra and its utilization"

Agent (Vanitha N): "please try this command : top"

david.hoffman "ok, and that displays the Celerra proceses or the Control Station?"

Agent (Vanitha N): "of celerra"

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