Re: I/O's per second on Perc3/Di

jason andrade <jason-fUYxV5FKygmHT8/[email protected]>
Newsgroups gmane.linux.hardware.dell.poweredge,gmane.linux.drivers.aacraid.devel
Message-ID <[email protected]>
On Wed, 5 Feb 2003, Paul wrote:

> I need to do some debugging and testing for one of our PE 2500's.
> It's has the ROMB Perc3/Di with 3 RAID0 Containers of 18GB each.

i'm assuming (not too sure) that the 2500 has 6 internal 9G disks
and you have created 3 raid0 containers of 2*9G in each.

> What options do I have in regards to monitoring I/O's per second, read/writes etc...

on linux you can do some monitoring using iostat and vmstat.  in particular

iostat -x 2  or vmstat 1

nfsstat might also be helpful as is netstat -s for looking at network related i/o.
sometimes helps when comparing against expected system i/o if application debugging.

> Is this an afacli/snmp type arrangement or is this a direct linux kernel thing I can obtain?
>
> I'm unsure whether for start on the controller via snmp or start looking at the linux kernel specifics.

i am not aware of any performance statistics that are available via the
command line (afacli) or the snmp interface to the controller (but i'd
love to corrected on this.. it'd be great if we could get performance
stats using snmp out of our perc3/sis on the 2450..)

i have only played with afacli 2.6 and 2.7/2.7-1

regards,

-jason

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