How to determine which directory in a filesystem is most used.

[Sean OB_1]

Hello.

If I have a file system that is being hit with heavy I/O, what is the easiest way to determine what directory/files are being used the most?

TIA,

Sean

[Rodney Hills · Accepted solution]

"glance" is able to monitor disk activity and with the "F" option allow you to see which files are open for a specific process.

You can monitor the "byte offset" value for each file and see which files have the most activity.

You can also get the byte offset information using the "lsof" command (see porting and archive).

HTH

-- Rod Hills

[James R. Ferguson]

Hi Sean:

Try 'glance'. Look at I/O by filesystem.

Regards!

...JRF...

[Christopher McCray_1]

Hello,

If you have glance, you can drill down to IO by filesystem (gpm gives the GUI version)

Hope this helps

Chris

[leereg_6]

Hi,
A silly question:
Does glance and lsof is a add-in feature or build-in feature of OS?


Thanks!

[Patrick Chim]

Hi,

You can have a 30-days trial version of Glance or you have to buy it from HP.

For lsof, you can download it from
http://hpux.cs.utah.edu/

If you are running 11i, you have to untar the files and compile the program by yourself
i.e. `make install`. Just look at the README and you will have the steps.

syntax : lsof -i tcp:9009

and it will show the process that `hold` this port.

Regards,
Patrick