How you use explicit quotas
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You can use explicit quotas to specify a quota for a specific quota target, or to override a default quota for a specific target.
An explicit quota specifies a limit for a particular user, group, or qtree. An explicit quota replaces any default quota that is in place for the same target.
When you add an explicit user quota for a user that has a derived user quota, you must use the same user mapping setting as the default user quota. Otherwise, when you resize quotas, the explicit user quota is rejected because it is considered a new quota.
Explicit quotas only affect default quotas at the same level (volume or qtree). For example, an explicit user quota for a qtree does not affect the default user quota for the volume that contains that qtree. However, the explicit user quota for the qtree overrides (replaces the limits defined by) the default user quota for that qtree.
The following quota rules define a default user quota that limits all users in vol1 to 50MB of space. However, one user, jsmith, is allowed 80MB of space, because of the explicit quota (shown in bold):
cluster1::> volume quota policy rule create -vserver vs0 -volume vol1 -policy-name default -type user -target "" -qtree "" -disk-limit 50m
cluster1::> volume quota policy rule create -vserver vs0 -volume vol1 -policy-name default -type user -target "jsmith" -qtree "" -disk-limit 80m
cluster1::> volume quota policy rule show -vserver vs0 -volume vol1
Vserver: vs0 Policy: default Volume: vol1
Soft Soft
User Disk Disk Files Files
Type Target Qtree Mapping Limit Limit Limit Limit Threshold
----- -------- ------- ------- -------- ------- ------ ------- ---------
user "" "" off 50MB - - - -
user jsmith "" off 80MB - - - -
The following quota rule restricts the specified user, represented by four IDs, to 550MB of disk space and 10,000 files in the vol1 volume:
cluster1::> volume quota policy rule create -vserver vs0 -volume vol1 -policy-name default -type user -target " jsmith,corp\jsmith,engineering\john smith,S-1-5-32-544" -qtree "" -disk-limit 550m -file-limit 10000
cluster1::> volume quota policy rule show -vserver vs0 -volume vol1
Vserver: vs0 Policy: default Volume: vol1
Soft Soft
User Disk Disk Files Files
Type Target Qtree Mapping Limit Limit Limit Limit Threshold
----- -------- ------- ------- -------- ------- ------ ------- ---------
user "jsmith,corp\jsmith,engineering\john smith,S-1-5-32-544"
"" off 550MB - 10000 - -
The following quota rule restricts the eng1 group to 150MB of disk space and an unlimited number of files in the proj1 qtree:
cluster1::> volume quota policy rule create -vserver vs0 -volume vol2 -policy-name default -type group -target "eng1" -qtree "proj1" -disk-limit 150m
cluster1::> volume quota policy rule show -vserver vs0 -volume vol2
Vserver: vs0 Policy: default Volume: vol2
Soft Soft
User Disk Disk Files Files
Type Target Qtree Mapping Limit Limit Limit Limit Threshold
----- -------- ------- ------- -------- ------- ------ ------- ---------
group eng1 proj1 off 150MB - - - -
The following quota rule restricts the proj1 qtree in the vol2 volume to 750MB of disk space and 75,000 files:
cluster1::> volume quota policy rule create -vserver vs0 -volume vol2 -policy-name default -type tree -target "proj1" -disk-limit 750m -file-limit 75000
cluster1::> volume quota policy rule show -vserver vs0 -volume vol2
Vserver: vs0 Policy: default Volume: vol2
Soft Soft
User Disk Disk Files Files
Type Target Qtree Mapping Limit Limit Limit Limit Threshold
----- -------- ------- ------- -------- ------- ------ ------- ---------
tree proj1 "" - 750MB - 75000 - -