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Old 04-27-2009, 01:52 AM   #1
stg_in2009
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About disk quota for users


Hello All,

I am new to Linux administration. Basically I am ClearCase Admin, now asked to take care of Linux Admin as well.
Here we want to implement each users /home dir quotas to restrict memory usage by the users. We have RHEL3 server and it is a running server. There are many users who work in this server. Many users are consuming more memory space in their home directory (some using 200MB some 800MB so on..). If I want to restrict them to use only upto 10 MB for each users what will happen for those users who are already using more than 10 MB space?
I also went though the man pages of disk quota but I am confused. So anyone please do help me out. How to acheive in implementing the users quota for their home directories with 10 MB. It should not store more than 10 MB and should give error for the users if it exceeds more than 10 MB.

Thanks in Advance.
Regards

STG
 
Old 04-27-2009, 02:57 AM   #2
chrism01
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Distribution: Centos 7.7 (?), Centos 8.1
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For a partition to implement quotas, it must be mounted with the usrquota or grpquota options. Edit /etc/fstab, adding the usrquota option to the /home partition:

mount -o remount /home

The disk usage database is stored within a partition's top-level directory in specially named binary files, aquota.user and aquota.group. Use quotacheck -cug to create a new user and group quota file. Skip the 'g' option if you want only user quotas.

You can turn the quotas on with
quotaon /home
You may find this is run in /etc/rc.d/rc.sysinit if quotas are set on.

you can force a rebuild of the quota db with
quotacheck -c /home

You set a quota like this

setquota username 4096 5120 40 50 /foo

where the nums are
1. soft block limit (warns if exceeded)
2, hard block limit (cannot be exceeded)
3. soft inode limit
4. hard inode limit

you can copy quota limits from one user to another:

edquota -p user1 user2

copies user1 limits to user2

See also: http://www.linuxtopia.org/online_boo...sk-quotas.html
 
Old 04-27-2009, 03:42 AM   #3
stg_in2009
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Registered: Jan 2009
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Hi Chris,

Thanks alot for your help. I will update you after implementing. The link that you have mentioned is very useful.
Thanks once again.

Regards

STG
 
  


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