HP XP P9500 Storage - Manual (Page 63)

Smart Tiers License requirements
Using of Smart Tiers on the P9500 storage system requires the following:
•
Both the Thin Provisioning and the Smart Tiers software have been installed and the license
key enabled on the Remote Web Console computer.
•
You will need the Smart Tiers license for the total capacity of the pool for which the tier function
is enabled.
•
If the THP V-VOLs of Thin Provisioning or Smart Tiers is used for the P-VOLs and S-VOLs of
Business Copy, Continuous Access Synchronous, Continuous Access Journal, or External
Storage Access Manager, you will need the Business Copy, Continuous Access Synchronous,
Continuous Access Journal, or External Storage Access Manager licence for the total consumed
pool capacity in use.
•
If the total used pool capacity exceeds the licensed capacity, the additional capacity will be
treated as being supported by a temporary license. You will be able to use additional capacity
for 30 days. After 30 days, you will not be able to use Business Copy except for deleting
pairs. After 30 days, you will not be able to use Continuous Access Synchronous and
Continuous Access Journal and External Storage Access Manager except for suspending copy
operations or deleting pairs. For more information about temporary license capacity, see HP
P9000 Remote Web Console User Guide.
For details about the license key, temporary license capacity, or product installation, see the HP
P9000 Remote Web Console User Guide.
Pool requirements
Pools are a set of volumes that are reserved for storing Thin Provisioning write data.
Requirements Items
Calculate pool capacity using the following formulas: Pool capacity
•
capacity of the pool (MB) = total number of pages × 42 - (4116 +
366) .
•
total number of pages =
Σ(floor(floor(pool-VOL number of blocks ч
512) ч 168)) for each pool-VOL.
where floor( ) truncates the value calculated from the formula in parentheses after the decimal
point.
However, the upper limit of total capacity of all pools is 1.1 PB.
Up to 1024 volumes per pool. Max number of
pool-VOLs
An LDEV used as a pool-VOL cannot be used for any other purpose, including in another pool.
Up to a total of 128 pools per storage system. This is the total number of Thin Provisioning
(including Smart Tiers) pools, Thin Provisioning Z pools, and Snapshot pools. Maximum number of
pools
Pool IDs (0 to 127) are assigned as pool identifiers.
You can increase pool-VOL capacity dynamically. Increasing capacity by one or more parity
groups is recommended. Increasing capacity
You can reduce pool capacity by removing pool-VOLs. Reducing capacity
You can delete pools that are not associated with any THP V-VOLs. Deleting
You can set the percentage of THP V-VOL capacity that can be created for the pool capacity to
avoid THP V-VOLs blocking caused by a full pool. Subscription limit
When the subscription limit is, for example, set to 100%, the formula for calculating the THP
V-VOL capacity that can be created is as follows.
total THP V-VOL capacity <= pool capacity × 100%
Thin provisioning requirements 63