Page 56 - RHEL8 BOOK

Quotas

 Quotas are used to restrict the amount of disk space occupied by users or groups.
 Quotas regulate disk computation of users.
 Quotas improve system performance.
 Group level quota can be applied to primary groups.
 Quotas can be applied on quota enabled partitions.

 Quotas can be applied in 2 types are
 On the basis of no of inodes / files
 On the basis of no of blocks / disk space.
 To apply blocks quota block size of partition is needed.

 Quota allows Administrator to specify restriction in two ways:
 Restricting a user or a group by creating files in a specific location.
 Restricting a user or a group by the disk space in a specific location.

Advantages of Quotas
 The idea behind quotas is that users are forced to stay under their disk consumption limit or with
number of files in a particular location.
 Quota is handled on a per user, per file system basis.

Types of Quotas
Quotas are of two types:
 User level quotas - usrquota
 Group level quotas - grpquota

Quotas Limits
There are two Quotas limits
Soft – Soft quota limits will only warn the user that they have reached their quotas limits.

Hard – Hard quota limits will not allow the user to create any more files or directories once the quota
limit has been reached.

S. Pradhan
(MCA, MBA-IT, BCA, CCNA, MCSA 2012, RHCE, ETHICAL HACKING)
Email Id:-spradhan.iiht@gmail.com
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