HP StorageWorks XP10000 Disk Array - Manual (Page 35)

Creating a Storage Domain 35
3 Creating a Storage Domain
This chapter describes how to create a storage domain.
• About Storage Domains (section 3-1 )
• Storage Domains and Migration Groups (section 3-2 )
• Creating a Storage Domain (section 3-3 )
For information on displaying a list of storage domains, changing attribute information and deleting storage
domains, see
8 .
3-1 About Storage Domains
A storage domain is a grouping of one or more of the following subsystems:
• StorageWorks XP12000
• StorageWorks XP10000
• Storage subsystem externally connected to StorageWorks XP12000
• Storage subsystem externally connected to StorageWorks XP10000
Tiered Storage Manager operates and manages each storage domain, so migration is performed between
volumes in the same storage domain.
Only one storage domain can be created for each domain controller. In other words, a single domain controller
is used in one Tiered Storage Manager server.
You can use multiple domain controller on a single Tiered Storage Manager server. Each storage domain
name must therefore be unique within its Tiered Storage Manager server.
You cannot delete or change the attribute information of a storage domain while the status of a migration task
is Active or Standby.
If you create or delete a storage domain, Tiered Storage Manager automatically refreshes information. For
information on the Refresh operation, see
1-7 Performing a Refresh.
A Partition Storage Administrator (PSA) cannot create a storage domain for a domain controller that manages
Storage Logical Partition (SLPR) operations.
Only the System Administrator and Storage Administrator can create, change, or delete a storage domain. The
System Administrator, Storage Administrator, and Guests who have access privileges can reference storage
domains.
You can create a storage domain by specifying the following attributes:
• Storage domain name.
• Description.
• Model and serial number of the domain controller , or domain controller name.
When you create a new storage domain, information is refreshed.
3-2 Storage Domains and Migration Groups
A migration group is a group of volumes that are collectively migrated in one operation. This means that
volumes in a migration group have the same characteristics (volumes which store databases for a certain
business system, etc. ).To create a migration group, use search conditions to search the volumes in a storage
domain or in a storage tier, and then select and register the desired volumes from those found.
Multiple migration groups can be created in a storage domain. An unlimited number of storage domains can be
created in a migration group.
Permission to perform migration can be set for any migration group. If you want to protect a group of volumes
from being accidentally migrated, create a migration group that contains these volumes, and then specify No
for Can Migrate.
Note that when a storage domain is deleted, the migration groups within that domain are also deleted. Volumes
and migration tasks within the deleted migration group, however, are not deleted.