Reserving Tier Capacity When Setting A Tiering Policy - HP XP7 User Manual

Tiering policy selected
with performance
graph
Level 5(5)
From Level6(6) to
Level31(31)

Reserving tier capacity when setting a tiering policy

If you set the tiering policy of a THP V-VOL, the THP V-VOL used capacity and the I/O performance
limitation are reserved from the tier. The reserved limit performance per page is calculated as
follows:
The reserved limit performance per page = (The performance limit of the tier) ÷
(The number of pages in the tier).
A THP V-VOL without a tiering policy setting uses the unreserved area in the pool.
V-VOL displayed in the performance graph
In the performance graph, you can display the frequency distribution of a THP V-VOL set to
level 5.
In the performance graph, you can display the frequency distribution of a THP V-VOL set to
custom policy.
Smart Tiers 101