NetApp
Storage : Quotas : Understanding quotas : When a full quota reinitialization is required
When a full quota reinitialization is required
Although resizing quotas is faster, you must do a full quota reinitialization if you make certain or extensive changes to your quotas.
A full quota reinitialization is necessary in the following circumstances:
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You create a quota for a target that has not previously had a quota.
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You change user mapping in the usermap.cfg file and you use the QUOTA_PERFORM_USER_MAPPING entry in the quotas file.
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You change the security style of a qtree from UNIX to either mixed or NTFS.
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You change the security style of a qtree from mixed or NTFS to UNIX.
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You remove users from a quota target with multiple users, or add users to a target that already has multiple users.
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You make extensive changes to your quotas.
Example 6. Example quotas changes that require initialization
Suppose you have a volume that contains three qtrees and the only quotas in the volume are three tree quotas. You decided to make the following changes:
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Add a new qtree and create a new tree quota for it.
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Add a default user quota for the volume.
Both of these changes require a full quota initialization. Resizing would not make the quotas effective.

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