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unix disk i/o
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Chris Montgomery
Ranch Hand
Joined: Jan 14, 2004
Posts: 141
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is there a command to view disk i/o for each process that is running on a unix box?
Thanks!
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Chris Montgomery
Ranch Hand
Joined: Jan 14, 2004
Posts: 141
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found iostat, but it says "command not found" (using putty).
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Ernest Friedman-Hill
author and iconoclast
Marshal
Joined: Jul 08, 2003
Posts: 24081
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Different tools are available for different UNIX O/S's. What flavor of UNIX are we talking about?
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[Jess in Action][AskingGoodQuestions]
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Chris Montgomery
Ranch Hand
Joined: Jan 14, 2004
Posts: 141
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he he...
do you have a command to find that out  ?
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Ernest Friedman-Hill
author and iconoclast
Marshal
Joined: Jul 08, 2003
Posts: 24081
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Yes: uname . "uname -a" will give lots of details.
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Chris Montgomery
Ranch Hand
Joined: Jan 14, 2004
Posts: 141
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it's Linux 2.4.13 i686
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Ernest Friedman-Hill
author and iconoclast
Marshal
Joined: Jul 08, 2003
Posts: 24081
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iostat is available, but might not be installed. Try /usr/sbin/iostat, and if it's not there, ask the sysadmin about getting it. iostat gives you per-device info -- because of the way UNIX filesystems work, in general, per-process I/O statistics aren't very meaningful.
The lsof program (also maybe in /usr/sbin, or ask your sysadmin) can tell you all the files a process has open, and some info about each file. This is often very handy.
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subject: unix disk i/o
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