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Identifying IO without the use of IOTop


 
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# 1  
Old 07-26-2009
Identifying IO without the use of IOTop

Hey,

I'm in the process of working on a script to identify IO usage on a high IO server I have setup (Debian Etch). My question is how can identify specific processes that are using much of these resources, I can identify the processes using IOTOP, but doing it remotely via script can be a pain since I have to grep and awk through the entire content in real time.

I also can look at the open file handles via:

lsof | awk '{print $2}' | sort | uniq -c | sort -k1 -g

But that doesn't give sound enough proof as I'm looking for an abusive user not specifically something that has X amount of file handles open.

Does anyone have to identify specific processes that are either writing or reading excessively?
# 2  
Old 07-27-2009
How about this one :
Code:
lsof | grep 'username' | awk '{print $NF}' | sort | wc -l

or, even use "lsof -u username", do some kind of pattern matching against the third and the fourth column, respectively FD and TYPE and then take actions.

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