User Guide

Table 6. Quota types (continued)
Type Description
● Track directory usage by setting the tree quota hard and soft limits to 0 (zero).
NOTE: If you change the limits for a tree quota, the changes take effect
immediately without disrupting file system operations.
User quota on a quota tree Limits the amount of storage that is consumed by an individual user storing data on
the quota tree.
Quota Limits
Table 7. Hard and Soft Limits
Type Descriptions
Hard A hard limit is an absolute limit on storage usage.
If a hard limit is reached for a user quota on a file system or quota tree, the user cannot write
data to the file system or tree until more space becomes available. If a hard limit is reached
for a quota tree, no user can write data to the tree until more space becomes available.
Soft limit A soft limit is a preferred limit on storage usage.
The user is allowed to use space until a grace period has been reached.
The user is alerted when the soft limit is reached, until the grace period is over. After that, an
out of space condition is reached until the user gets back under the soft limit.
Quota Grace Period
The Quota Grace Period, provides the ability to set a specific grace period to each tree quota on a file system. The grace period
counts down the time between the soft and hard limit, and alerts the user about the time remaining before the hard limit is met.
If the grace period expires you can not write to the file system until more space has been added, even if the hard limit has not
been met.
You can set an expiration date for the Grace Period. The default is 7 days, alternatively you can set the Grace Period expiration
date to an infinite amount of time and the Grace Period will never expire, or for specified number of days, hours or minutes.
Once the Grace Period expiration date is met, the Grace Period will no longer apply to the File System directory.
Additional information
For more information on quotas, see the Dell EMC PowerStore File Capabilities White Paper.
Enable User Quotas
You must enable Quotas and set the User Quota defaults before you can add a User Quota to a files system.
Steps
1. Select Storage > File Systems > [file system] > Quotas.
2. Select Storage > File Systems > [file system] > Quotas > Properties.
3. Slide the Disabled button to the right until it is Enabled.
4. Enter the default Grace Period for the user quota on the file system which will count down time after the soft limit is met
until the hard limit will be met.
5. Enter a default Soft Limit, and a default Hard Limit and click Update.
More file system features 23