HP XP Racks User Manual

Page 328

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Description

Item

If you specify the pool ID which is used already, the minimum pool ID after that
the specified pool ID is automatically set.

Set the subscription limit of the pool from 0 to 65534 (%).

Subscription Limit

If this is blank, the subscription is set to unlimited.

When creating a Fast Snap pool, this setting is not necessary.

Set the threshold between 1 and 100%. The default value is 70%.

Warning Threshold

For Fast Snap: Set the threshold between 20% and 95%. The default value is
80%.

Set the threshold between 1% and 100%. The default value is 80%.

Depletion Threshold

When creating a Fast Snap pool, this setting is not necessary.

Select Auto or Manual of performance monitoring and tier relocation.

Tier Management

Cycle Time

Select the cycle of performance monitoring and tier relocation.

Monitoring Period

When 24 Hours is selected in the Cycle Time list, specify the time zone from
00:00 to 23:59 (default value), in which performance monitoring is to be
performed. Take one or more hours between the starting time and the ending
time. If you specify the starting time later than the ending time, the performance
monitoring continues until the time when you specify as the ending time on
the next day.

This function can be set when the Smart Pool is enabled.

Specifies the monitoring mode, If you perform the tier relocation weighted to the
past period monitoring result, select Continuous Mode. If you perform the tier

Monitoring Mode

relocation on the specified cycle, select Period Mode. You can specify this
function when the Smart Pool is enabled.

Specifies the page relocation speed. You can set the speed to: 1(Slowest),
2(Slower), 3(Standard), 4(Faster), or 5(Fastest). The default is 3(Standard). If the

Relocation speed

speed specified is slower than 3(Standard), the data drive load is low when tier
relocation is performed.

You can set this function when the Smart Pool is enabled.

Buffer Space for New page
assignment

Tier 1: Enter an integer value from 0 to 50 as the percentage (%) to set for tier
1. A default value depends on the data drive type of pool-VOL in tier 1. The
default value of SSD is 0%. The default value other than SSD is 8%.

Tier 2: Enter an integer value from 0 to 50 as the percentage (%) to set for tier
2. A default value depends on the data drive type of pool-VOL in tier 2.

Tier 3: Enter an integer value from 0 to 50 as the percentage (%) to set for tier
3. A default value depends on the data drive type of pool-VOL in tier 3.

You can set this function when the Smart Pool is enabled.

Buffer Space for Tier relocation

Tier 1: Enter an integer value from 2 to 40 as the percentage (%) to set for tier
1. A default value is 2%.

Tier 2: Enter an integer value from 2 to 40 as the percentage (%) to set for tier
2. A default value is 2%.

Tier 3: Enter an integer value from 2 to 40 as the percentage (%) to set for tier
3. A default value is 2%.

*Items with asterisks require configuration.

328 Thin Provisioning and Smart Tiers GUI reference

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