Create Pools window

Use this window to create new pools for Dynamic Provisioning, Thin Image.

olh-caution.gif When you create the Dynamic Provisioning pool, if you specify Any for RAID level to display the Select Pool VOLs window, external volumes with the cache mode set to disabled are not displayed in the Available Pool Volumes table because they cannot coexist with volumes of the other RAID levels:

When you select these volumes in the Select Pool VOLs window, specify a hyphen (-) for RAID level.

Setting fields

Item

Description

*Pool Type

Select the pool type.

For Thin Image, select Thin Image.

For following software, select Dynamic Provisioning.

  • Dynamic Provisioning

  • Dynamic Tiering

*Multi-Tier Pool

If Dynamic Tiering is enabled, Auto or Manual for performance monitoring and tier relocation is displayed. If Dynamic Tiering is disabled, a hyphen (-) is displayed.

*Pool Volume Selection

Select the mode of the pool-VOL setting from Auto or Manual.

*Drive Type/RPM

Select the data drive type and RPM of the pool-VOL. Mixable appears. When the volume is the external volume, Drive Type displays External Storage. This item is displayed when you select Manual as your Pool Volume Selection.

*RAID Level

Select the RAID level of the pool-VOL. This item is displayed when you select Manual as your Pool Volume Selection.

Mixable appears in the case of Dynamic Provisioning or Dynamic Tiering. A hyphen (-) appears when External Storage is selected in the Drive Type/RPM list.

*Select Pool VOLs

Opens the Select Pool VOLs window. Selecting a pool-VOL is mandatory. This item is displayed when you select Manual as your Pool Volume Selection.

Total Selected Pool Volumes

Displays the total number of the selected pool-VOLs. This item is displayed when you select Manual as your Pool Volume Selection.

Total Selected Capacity

Displays the total capacity of the selected pool-VOLs. This item is displayed when you select Manual as your Pool Volume Selection.

Resource Group

This item is displayed when you select Auto as your Pool Volume Selection.

Select the resource group name of the pool.

Performance

This item is displayed when you select Auto as your Pool Volume Selection.

Select the performance of the pool.

Total Capacity

This item is displayed when you select Auto as your Pool Volume Selection.

Specify the total capacity of the pool.

Change Pool Configuration

This item is displayed when you select Auto as your Pool Volume Selection.

Opens the Change Pool Configuration Pattern window. You can change the pool configuration that is automatically selected.

Total Pool Volumes

This item is displayed when you select Auto as your Pool Volume Selection.

Displays the total number of pool-VOLs.

Total Capacity

This item is displayed when you select Auto as your Pool Volume Selection.

Displays the capacity of the pool created by the selected pool configuration.

*Pool Name

Set the pool name.

  • Prefix: Enter the alphanumeric characters, which are fixed characters of the head of the pool name. The characters are case-sensitive.

  • Initial Number: Enter the initial number following the prefix name, which can be entered up to 9 digits.

  • You can enter up to 32 characters including the initial number.

Initial Pool ID

The smallest available number is entered in the text box as a default. No number appears in the text box if no available pool ID exists.

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

Subscription Limit

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

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

When creating a Thin Image pool, this setting is not necessary.

Warning Threshold

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

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

Depletion Threshold

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

When creating a Thin Image pool, this setting is not necessary.

Tier Management

Select Auto or Manual of performance monitoring and tier relocation.

  • 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 Multi-Tier Pool is enabled.

Monitoring Mode

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

Relocation speed

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

Buffer Space for New page assignment

You can set this function when the Multi-Tier Pool is enabled.

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.

Buffer Space for Tier relocation

You can set this function when the Multi-Tier Pool is enabled.

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.

olh-caution.gif When you create the Dynamic Provisioning pool, if you specify Mixable for RAID level to display the Select Pool VOLs window, external volumes with the cache mode set to disabled are not displayed in the Available Pool Volumes table because they cannot coexist with volumes of the other RAID levels:

When you select these volumes in the Select Pool VOLs window, specify a hyphen (-) for RAID level.

Add

When you click Add, the configured information is added to the right side of the Selected Pools table.

Selected Pools table

Item

Description

Pool Name (ID)

Displays the pool name and pool ID.

RAID Level

Displays RAID level of the pool. If multiple RAID levels exist in a pool, this field indicates that RAID levels are mixed. If all pool-VOLs are external volumes, a hyphen (-) is displayed.

Capacity

Displays the total capacity of the created pool in the specified unit.

The displayed capacity is approximately 4.1 GB (capacity of the management area) less than the total capacity of the selected pool-VOLs.

Pool Type

Displays the pool type.

For a Dynamic Provisioning pool, DP is displayed.

For a Dynamic Tiering pool, DT is displayed.

For a Thin Image pool, TI is displayed.

Drive Type/RPM

Displays the data drive type and RPM. If multiple drive types or RPMs exist in a pool, this field indicates Mixed. When the volume is the external volume, Drive Type displays External Storage and the value of the external LDEV tier rank.

User-Defined Threshold (%)

Displays the pool threshold.

  • Warning: Warning threshold is displayed.

  • Depletion: Depletion threshold is displayed.

For a Thin Image pool, a hyphen (-) is displayed for Depletion.

Subscription Limit (%)

Displays subscription limit of the pool.

For Thin Image pool, a hyphen (-) is displayed.

Number of Pool VOLs

Displays the number of pool-VOLs.

Tier Management

If Dynamic Tiering is enabled, Auto or Manual for performance monitoring and tier relocation is displayed. If Dynamic Tiering is disabled, a hyphen (-) is displayed.

Cycle Time

Displays the cycle of performance monitoring and tier relocation. If Dynamic Tiering is disabled, a hyphen (-) is displayed.

Monitoring Period

Displays the time zone of performance monitoring when 24 Hours is selected as the Cycle Time. If Dynamic Tiering is disabled, a hyphen (-) is displayed.

Monitoring Mode

If the continuous mode is enabled, Continuous Mode is displayed. If the period mode is enabled, Period Mode is displayed.

Relocation speed

Displays the page relocation speed: 1(Slowest), 2(Slower), 3(Standard), 4(Faster), or 5(Fastest). If Dynamic Tiering is disabled, a hyphen (-) is displayed.

Buffer Space for New page assignment (%)

Displays the information of the buffer space for new page assignment to each tier.

Tier 1: If you make the Dynamic Tiering function available, the buffer space for new page assignment to tier 1 is displayed. If you make the Dynamic Tiering function unavailable, a hyphen (-) is displayed.

Tier 2: If you make the Dynamic Tiering function available, and tier 2 exists, the buffer space for new page assignment to tier 2 is displayed. If you make the Dynamic Tiering function unavailable, or tier 2 does not exist, a hyphen (-) is displayed.

Tier 3: If you make the Dynamic Tiering function available, and tier 3 exists, the buffer space for new page assignment to tier 3 is displayed. If you make the Dynamic Tiering function unavailable, or tier 3 does not exist, a hyphen (-) is displayed.

Buffer Space for Tier relocation (%)

Displays the information of the buffer space for tier relocation to each tier.

Tier 1: If you make the Dynamic Tiering function available, the buffer space for tier relocation to tier 1 is displayed. If you make the Dynamic Tiering function unavailable, a hyphen (-) is displayed.

Tier 2: If you make the Dynamic Tiering function available, and tier 2 exists, the buffer space for tier relocation to tier 2 is displayed. If you make the Dynamic Tiering function unavailable, or tier 2 does not exist, a hyphen (-) is displayed.

Tier 3: If you make the Dynamic Tiering function available, and tier 3 exists, the buffer space for tier relocation to tier 3 is displayed. If you make the Dynamic Tiering function unavailable, or tier 3 does not exist, a hyphen (-) is displayed.

Detail

Displays the Pool Properties window when a row is selected, and shows the error window when a row is not selected or multiple rows are selected.

Remove

Deletes the pool selected in the Selected Pools window.

Displays the error window when a row is not selected.

Next Task Option

Click Next to go to the task setting window, which is indicated in Task Next Option.