HP XP P9500 Storage - Manual (Page 54)

4 Configuring thin provisioning
Thin provisioning technology allows you to allocate virtual storage capacity based on anticipated
future capacity needs, using virtual volumes instead of physical disks.
Thin provisioning is an optional provisioning strategy for both open and mainframe systems. Thin
provisioning is implemented with Thin Provisioning Z by creating one or more Thin Provisioning Z
pools (THP pools) of physical storage space.
Thin Provisioning Z overview
Thin Provisioning Z is an advanced thin-provisioning software product that allows you to save
money on storage purchases and reduce storage management expenses.
You can operate Thin Provisioning Z using both Remote Web Console software and the RAID
Manager.
Smart Tiers Z overview
Smart Tiers Z is a software product that helps you reduce storage costs and increase storage
performance by supporting a volume configured with different storage media of different cost and
performance capabilities. This support allows you to allocate data areas with heavy I/O loads to
higher-speed media and to allocate data areas with low I/O loads to lower-speed media. In this
way, you can make the best use of the capabilities of installed storage media. Up to three storage
tiers consisting of different types of data drives are supported in a single pool of storage.
Thin provisioning requirements
License requirements
Before you operate Thin Provisioning Z, the Thin Provisioning and the Thin Provisioning Z program
products must be installed on your Remote Web Console. For this, you will need to purchase a
Thin Provisioning Software license.
Before you operate Smart Tiers Z, the Thin Provisioning, the Thin Provisioning Z, the Smart Tiers,
and the Smart Tiers Z program products must have been installed. For this, you will need to purchase
a Smart Tiers Software license and a Thin Provisioning Software license.
You will need a Smart Tiers Z license for the total capacity of the pool for which the tier function
is enabled.
If the V-VOL of Thin Provisioning Z or Smart Tiers Z are used for the P-VOLs and S-VOLs of Business
Copy Z, Compatible FlashCopy, Continuous Access Synchronous Z, or Continuous Access Journal
Z, you will need a Business Copy Z, Continuous Access Synchronous Z, Compatible FlashCopy,
Continuous Access Journal Z license for the total pool capacity in use. In addition, if you assign a
V-VOL of Thin Provisioning Z or Smart Tiers Z to the primary volume of Compatible XRC, you will
need a Compatible XRC license for the total pool capacity in use by the related V-VOL.
If the THP-VOLs of Thin Provisioning Z or Smart Tiers Z are used for the P-VOLs and S-VOLs of
Business Copy Z, Compatible FlashCopy, Continuous Access Synchronous Z, or Continuous Access
Journal Z, you will need the Business Copy Z, Continuous Access Synchronous Z, Compatible
FlashCopy, Continuous Access Journal Z license for the total pool capacity in use. In addition, if
you assign a THP-VOL of Thin Provisioning Z or Smart Tiers Z to the primary volume of Compatible
XRC, you will need the Compatible XRC license for the total pool capacity in use by the related
THP-VOL.
If you exceed the licensed capacity, you will be able to use the additional unlicensed capacity for
30 days. After 30 days, you will not be able to perform Business Copy Z and Compatible FlashCopy
operations except for deleting pairs. After 30 days, you will not be able to perform Continuous
Access Synchronous Z, Continuous Access Journal Z, and Compatible XRC operations except for
54 Configuring thin provisioning