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
Some quotas file changes cannot be made effective by resizing. Suppose you have a volume that contains only explicit tree quotas and you want to add a new tree quota.
In this case, resizing does not cause the newly added tree quota to be effective, because there is no default entry for tree quotas already in effect. A full quota initialization is required.