file limits by filesystem 1

[bambock]

Does anyone know if it's possible to allow a user or process to create files greater than 2GB on a particular file system? I have an fs that I'd like to create sizable tar file on, but I don't want to exceed the 2GB limit on my other file systems. It might not even be possible. I am running AIX 5.3 by the way.

Thanks,
Ethan

 

[khalidaaa]

According to what i understood from your thread, Have you tried using the ulimit for the user (and accordingly the processes that belong to this user as they are both the same)?

One more thing, are u using jfs or jfs2? With standard jfs the filesystem size shouldn't exceed 2GB!

You can use WLM (Work Load Management) to control what the processes use from resources!

I don't really have much knowledge about WLM but you can aquire that knowledge through this redbook:

http://www.redbooks.ibm.com/abstracts/sg245977.html

Regards,
Khalid

 

[bambock]

Thanks Khalidaaa, yes, the filesystem is jfs2. I'm trying to tar up a 50GB directory structure in a cron job, but I want to allow that 2GB restriction to be lifted off the destination filesystem.

Ethan

 

[khalidaaa]

Then ulimit is your solution! All you need to do is to set the fsize parameter of the user who will issue the tar command.

http://www.ncsa.uiuc.edu/UserInfo/R...info/en_US/a_doc_lib/cmds/aixcmds5/ulimit.htm

Instead of making the user restricted to 50GB you can make him/her unlimited by the following command:

ulimit -f unlimited

or you specify your 50GB after the -f option (which should be in 512-byte representation)

Regards,
Khalid