HP XP7 Storage - Manual (Page 94)

diagram below, tier 1 is reserved first. If the capacity of tier 1 is deficient at this point, tier 2 is
reserved automatically. For details, see
“Notes on tiering policy settings” (page 95) .
Reserved tier Tiering policy Tier reservation
priority
Tier 1 Level1(1) 1
Tier 2 Level3(3) 2
Tier 3 Level5(5) 3
The custom policy whose number is small is prioritized. From Level6(6) to Level31(31) From 4 to 29
Tier 1: From Level6(6) to Level31(31), each of the Tier1
Min values are reserved.
Tier 2: From Level6(6) to Level31(31), each of values
that deducted the total value of Tier1 Max and Tier3
Max from 100(%) are reserved.
Tier 3: From Level6(6) to Level31(31), each of the Tier3
Min values are reserved.
All tiers All(0) 30
Tier 1 and Tier 2 Level2(2)
Tier 2 and Tier 3 Level4(4)
Tier 1: From Level6(6) to Level31(31), each of the Tier1
Max values are reserved. From Level6(6) to Level31(31)
Tier 3: From Level6(6) to Level31(31), each of the Tier3
Max values are reserved.
94 Configuring thin provisioning