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AIX 5.1 - how can I tell WHAT is maxxing out the disk?
Usually I know a couple things to look for and I know what is maxing out the disk when it happens. But now it is getting maxed out and I'm not sure why.
Is there a way I can see what processes are using the most diskIO?
8/22/2022 - Mon
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To start, take a look at...
and finally the Redbook...
This should give you what you need to identify the problem.
By "maxing out my disk" I presume you mean disk I/O utilization, and not storage....
utility should be able to give you what you need -- in particular, how much I/O wait time is being attributed to a disk device... from there, you should be able to track it to a running process.
NOTE: In my experience, sudden disk slowdowns are usually caused by failing drive hardware... the delays are because the default FS behavior is to retry the failing read/writes, causing a block.
to the iostat command for AIX... its not a unique command, nor is it old or new... it's pretty much "standard *nix"
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