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Measures reported by NetCluQuotaTest
Quotas are specified for the following reasons:
- To limit the amount of disk space or the number of files that can be used by a user or group, or that can be contained by a qtree.
- To track the amount of disk space or the number of files used by a user, group, or qtree, without imposing a limit.
- To warn users when their disk usage or file usage is high
You specify quotas using the /etc/quotas file. Quotas are applied to a specific volume or qtree.
When Data ONTAP receives a request to write to a volume, it checks to see whether quotas are activated for that volume. If so, Data ONTAP determines whether any quota for that volume (and, if the write is to a qtree, for that qtree) would be exceeded by performing the write operation. If any hard quota would be exceeded, the write operation fails, and a quota notification is sent. If any soft quota would be exceeded, the write operation succeeds, and a quota notification is sent.
This test reports the number of Windows/Unix users and Unix user groups that crossed the disk space (both hard and soft) and file usage quotas set. With the help of these metrics, you can promptly detect abnormal disk space and file usage at the volume/qtree-level.
The measures made by this test are as follows:
| Measurement |
Description |
Measurement Unit |
Interpretation |
| Number_of_quotas |
Indicates the number of quotas of this type. |
Number |
The detailed diagnosis of this measure indicates whether the quota has been set for a user/group/qtree, the target of the quota, the volume on which the quota is applied, the qtree on which the quota is applied, the percentage of disk limit used, the percentage of file limit used, and the number of windows users, unix users and unix group users who violated each type of quota. |
| Windows_users |
Indicates the number of windows users involved in quota violation of this quota type. |
Number |
Ideally, the value of these measures should be low. A high value indicates that there is space constraint in the disk/volume/LUN which in turn will affect the users who are accessing them. |
| Unix_users |
Indicates the number of unix users involved in quota violation of this quota category. |
Number |
| Unix_groups_users |
Indicates the number of unix groups involved in quota violation of this quota category. |
Number |
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