Resource group rules, restrictions, and guidelines
Rules
The maximum number of resource groups that can be created on a storage system is 1023. However, if the NAS module is installed in the storage system, the maximum number of resource groups that can be created on the storage system is 1022.
A Storage Administrator with the Security Administrator (View & Modify) role can create resource groups and assign resources to resource groups.
Resources removed from a resource group are returned to meta_resource.
Only a Security Administrator (View & Modify) can manage the resources in assigned resource groups.
Restrictions
No new resources can be added to meta_resource and NAS_Platform_System_RSG.
Resources cannot be deleted from meta_resource and NAS_Platform_System_RSG.
LDEVs with the same pool IDs or journal IDs cannot be added to multiple resource groups.
In the case of adding LDEVs that are used as pool volumes or journal volumes, add all the LDEVs that have the same pool IDs or journal IDs by using a function such as sort.
Guidelines
If you are providing a virtual private storage system to different companies, you should not share parity groups, external volumes, or pools if you want to limit the capacity that can be used by each user. When parity groups, external volumes, or pools are shared between multiple users, and if one user uses too much capacity of the shared resource, the other users might not be able to create an LDEV.