About quotas for CIFS home directories
You use Storage> quota cifshomedir commands to configure quotas for CIFS home directories. Users and groups visible through different sources of name service lookup (nsswitch), local users, LDAP, NIS, and Windows users can be configured for CIFS home directory quotas.
Default values are entered in a configuration file only. The actual application of the quota is done with the set and setall commands using the default values provided.
When a CIFS home directory file system is changed, quota information for a user's home directory is migrated from the existing home directory file system to the new home directory file system.
Quota migration results are based on the following logic:
Case 1:
In the case where the existing home directory file system is NULL, you can set the new home directory file system to be multiple file systems (for example, fs1, fs2). If the multiple file systems previously had different quota values, the quota status and values from the first file system are migrated to other file systems in the new home directory. The first file system is the template. Only the user/group quota values that existed on the first file system are migrated. Other user/group quota values remain the same on the other file system.
For example, assume the following:
The new home directory file systems are fs1 and fs2.
user1, user2, and user3 have quota values on fs1.
user2, user3, and user4 have quota values on fs2.
For the migration, user/group quota values for user1, user2, and user3 are migrated from fs1 to fs2. Quota values for user4 are kept the same on fs2, and user4 has no quota values on fs1.
Case 2:
When the existing home directory file systems are already set, and you change the file systems for the home directory, the quota status and values need to be migrated from the existing home directory file systems to the new file systems. For this migration, the first file system in the existing home directory acts as the template for migrating quota status and values.
For example, if the existing home directory file systems are fs1 and fs2, and the file systems are changed to fs2, fs3, and fs4, then the user/group quota values on fs1 are migrated to fs3 and fs4. Other user/group values on fs3 and fs4 remain the same.