Managing i/o usage rates example, Tuning with smart tiers – HP XP P9500 Storage User Manual
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THP V-VOL usage (stored data rates) and elapsed time of pool usage (using Command
View Advanced Edition Suite).
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Smart Tiers performance monitoring of pool storage
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Possible tuning actions (without Smart Tiers). The following techniques using Business Copy
or Tiered Storage Manager will move a THP V-VOL.
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The THP V-VOL is copied using Business Copy from a pool with an I/O bottleneck. For
more information, see the HP XP P9000 Business Copy User Guide.
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When normal volumes exist in the same parity group as the pool-VOL, Tiered Storage
Manager can be used to move the normal volume to another parity group that is not
shared with a pool-VOL.
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Business Copy copies a THP V-VOL with a high I/O load to a pool with a lower access
level to adjust the pool load.
Managing I/O usage rates example
The following figure illustrates an example of managing I/O usage rates. To manage I/O and
adjust the pool load, you can use:
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Business Copy to copy a THP V-VOL with a high load to an under-utilized pool.
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Tiered Storage Manager to migrate the THP V-VOL data with a higher load to a pool with
extra performance capability.
Tuning with Smart Tiers
If Smart Tiers is active on your storage system, you can monitor access frequency and performance
use, and while Smart Tiers automatically relocates data to the most suitable data drive (tier). You
can configure monitoring to be automatic or manual. In both cases, relocation of the data is
automatically determined based on monitoring results.
For details, see
Monitoring capacity and performance
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