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How user and group quotas work with qtrees

Contributors netapp-pcarriga
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Tree quotas limit the overall size of the qtree. To prevent individual users or groups from consuming the entire qtree, you specify a user or group quota for that qtree.

Example user quota in a qtree

Suppose you have the following quota rules:

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        -       -        -       45MB
user   jsmith    ""      off          80MB        -       -        -       75MB

You notice that a certain user, kjones, is taking up too much space in a critical qtree, proj1, which resides in vol1. You can restrict this user's space by adding the following quota rule:

cluster1::> volume quota policy rule create -vserver vs0 -volume vol1 -policy-name default -type user -target "kjones" -qtree "proj1" -disk-limit 20m -threshold 15m

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        -       -        -       45MB
user   jsmith    ""      off          80MB        -       -        -       75MB
user   kjones    proj1   off          20MB        -       -        -       15MB