HP XP7 Storage - Manual (Page 16)

To avoid such problems, use Resource Partition to set up resource groups that allow you to manage
one storage system as multiple virtual private storage systems. The storage administrator in each
resource group can access only their assigned resources and cannot access other resources.
Configuring resource groups prevents the risk of data leakage or data destruction by another
storage administrator in another resource group.
The resources such as LDEVs, parity groups, external volumes or ports can be assigned to a resource
group. These resources can be combined to flexibly compose a virtual private storage system.
Resource groups should be planned and created before creating volumes. For more information,
see
“Configuring resource groups” (page 20) .
Complimentary strategies
Functions related to provisioning
For the following functions, see the appropriate manuals:
•
Replication: Business Copy Z, Continuous Access Synchronous Z, Continuous Access Journal
Z, Compatible XRC, Compatible FlashCopy
•
External storage: External Storage
•
Partitioning: Cache Partition (XP7 Performance for Open and Mainframe Systems User Guide)
•
TSE-VOL: Compatible FlashCopy SE
NOTE: For information on that can perfrom operations on volumes that connect with zLinux,
contact the HP Technical Support.
Key terms
The following are provisioning key terms:
Description Term
Security function used to control the access to a logical volume. Access attributes are
assigned to each volume: read only, read/write, and protect. access attributes
Customized Volume. A fixed volume that is divided into arbitrary sizes. CV (variable volume)
Security option used to allow or not allow changing of the access attribute on a volume. expiration lock
Abbreviation for fixed-sized volume. FV
A resource group in which additional resources (other than external volumes) and the
resources existing before installing Resource Partition belong. meta_resource
In Thin Provisioning Z, a page is 38 MB of continuous storage in a THP V-VOL that
belongs to a THP-pool. page
A set of volumes that are reserved for storing Thin Provisioning Z write data. pool
In a thin provisioned storage system, the proportion (%) of used capacity of the pool to
the total pool capacity. Each pool has its own pool threshold values for warning and
depletion. pool threshold
A volume that is reserved for storing written data for Thin Provisioning Z. pool-VOL, pool volume
A group that is assigned one or more resources of the storage system. The resources that
can be assigned to the resource group are LDEV IDs, parity groups, external volumes,
and ports. resource group
In a thin provisioned storage system, the proportion (%) of total THP-VOL capacity
associated with the pool versus the total capacity. subscription threshold
You can set the percentage of THP-VOL capacity that can be created to the total capacity
of the pool. This can help prevent THP-VOL blocking caused by a full pool.
16 Introduction to provisioning