Tiering policy examples, Setting tiering policy on a thp v-vol – HP XP P9500 Storage User Manual
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For example, if you set the tiering policy level on a V-VOL(THP V-VOL) to a tier with a high I/O
speed, the data is always stored on the high-speed tier when relocating tiers. Therefore, when you
use that V-VOL(THP V-VOL), regardless of the actual quantity of the I/O load, you can always get
high-speed responses (see
).
You can set the tiering policy level to one of six tiering levels (see
).
You can designate a tiering level or multiple tiering policies when creating the THP V-VOL. Use
the Edit LDEVs window to change the tiering policy settings. When relocation operates, the related
tiering level that is set to the THP V-VOL is used to relocate its data to the desired tier or tiers.
The tiering policy does not own pool capacity. Pool capacity is shared.
Tiering policy examples
The following figure shows an example of data allocation when the default tiering policy level All
is specified. Pages in the THP V-VOL are relocated to any tier.
The following figure shows an example of data allocation when setting the tiering policy to level
1 (see Level 1 in
). In this case, pages in the THP V-VOL are relocated to tier 1, and are
not relocated to other tiers.
Setting tiering policy on a THP V-VOL
The setting of a tiering level for a THP V-VOL is optional. If one is not selected, the default is the
All tiering policy level. The available levels are listed in
). THP V-VOLs of different tiering
Smart Tiers
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