Hello All,
I wish to generate all kinds of memory stats showing faults, like paging faults, cache misses, memory access errors, read/write errors etc. So which all commands would be helpful?
Would it also be possible to find out the delay/latency in writing to a mirror disk?
Any other help related to troubleshooting sun clusters is welcome on this post.
Thanks,
Amit Agarwal
man 1m sar
if you search the manpages, you'll see every one of your wishlist items are there -
"delay/latency writing to a mirror disk" - Not sure about how much statistics SVM can help, but VxVM will give you a lot with vxstat -vsg <disk group>
"Any other help related to troubleshooting sun clusters is welcome on this post." -c'mon, help us out - what's the problem that you're having? it sounds like performance, but you need to be a little more verbose when reporting symptoms. Post more and perhaps people can help you out - Jeff
Hello, Jeff,
Thanks for replying. sar -p did help in finding page faults/sec.
I also did try sar -r; sar -u; sar -a; sar -b; sar -c . But I was unable to find cache misses stats and also the latency in mirroring. Also I need to find disk speed to verify disk access on each node and how much it has slowed down from the given rpm rating.
Is there more I can analyze about disk performance?
I haven't looked at Symbel in a while, but it may have some interesting details in iostat.se or something like that -
