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questil

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AIX Disk performance

I have AIX machine that started working very slow, running topas show that one of the disks is almost always 100% busy. How can I find out which processes causing this?

Thanks,
Tal
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woolmilkporc
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madunix
Displaying top CPU_consuming processes:
#ps aux | head -1 ;  ps aux | sort -rn +2 | head -10;topas -P

Displaying top 10 memory-consuming processes:
#ps aux | head -1; ps aux | sort -rn +3 | head

Displaying the process in order of real memory use
#ps vx | head -1; ps vx | grep -v PID | sort -rn +6 | head -10

Displaying the process in order of I/O
#ps vx | head -1; ps vx | grep -v PID | sort -rn +4 | head -10

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questil

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Yes, woolmilkporc, the disk contain paging space, but we had to restart the system from other reasons...

Thanks!