system disks on aix 5.3

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Operating Systems AIX system disks on aix 5.3
# 1  
Old 02-13-2008
system disks on aix 5.3


i'm running on P570 box aix 5.3 8 cpus 24G ram
there are 1850 users loged in to this box

the problem is that the two sysytem disks busy all the time

hdisk0 100% busy
hdisk1 100% busy

some one have an idea what writing to this disks?


# 2  
Old 02-13-2008
Why don't you have a look? Monitor the disk activity, there are plenty of tools for that purpose: iostat, nmon, topas, ....

If you want an in-depth analysis about what exactly is going on in your filesystem use "filemon" over 5-10 seconds and analyze its output. Read carefully what the manpage says about filemon, as it is not trivial.

Lacking any further information i would bet my money on swapping though: do an "lsps -a" and tell us what the figures are. Also the output of "svmon -G" would be helpful.

I hope this helps.

# 3  
Old 02-14-2008

first thanks for your help

second all the details that i've wrote comes from topas iostat and all the tools that you wrote.
my pagesapce is on emc disks, out of the machine.
on system disks i've only filesystems system
can you have more ideas?


# 4  
Old 02-15-2008
filemon and RPM lsof
# 5  
Old 02-17-2008

where i can see jobs who send from unix and did not get out to printer?
# 6  
Old 02-17-2008
run level


i've typed who -r command on aix 5.3 box and no answer
how do i know on what run level my machine P570 is running?


# 7  
Old 02-18-2008
o14: /home/vbe> oslevel
o14: /home/vbe> who -r
. run-level 2 Feb 08 14:13 2 0 S
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