Resource group rules, restrictions, and guidelines
Rules
The maximum number of resource groups that can be created on a storage system is 1023.
A Storage Administrator with the Security Administrator (View and 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 and Modify) can manage the resources in assigned resource groups.
Restrictions
No new resources can be added to meta_resource.
Resources cannot be deleted from meta_resource.
LDEVs that have the same pool IDs or the journal IDs cannot be added to multiple resource groups.
When 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, do not share parity groups, external volumes, or pools To limit the capacity that can be used by each user. When parity groups, external volumes, or pools are shared between multiple users, and one uses too much shared resource capacity, other users can not be able to create an LDEV.