*Pool Type

Select the pool type.

For Thin Image, select Thin Image.

For the following software, select Dynamic Provisioning.

• Dynamic Provisioning
• Dynamic Tiering
• active flash

*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.

When the following conditions are satisfied, this check box can be selected:

• Multi-Tier Pool is enabled.
• Pool volumes whose drive type is SSD are installed.

If this check box is selected, active flash can be used.

Data Direct Mapping

Select Enable or Disable for the data direct mapping attribute. This item can be selected if following are specified:

• Pool Type: Dynamic Provisioning
• Multi-Tier Pool: Disable

*Pool Volume Selection

Select the mode of the pool-VOL setting from Auto or Manual. If Enable is selected in Data Direct Mapping, Manual is selected automatically.

*Drive Type/RPM

Select the data drive type and RPM of the pool-VOL. When the volume is created by Dynamic Provisioning, Dynamic Tiering, or active flash, 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, Dynamic Tiering, or active flash. 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. For details, see Change Pool Configuration Pattern window.

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.

Assign Deduplication System Data Volume

(Open systems)

Select Yes or No to enable or disable the deduplication setting. Deduplication cannot be enabled if any of the following conditions exists:

• The license for the capacity saving function is not installed.
• Data Direct Mapping is enabled.
• Multi-Tier Pool is enabled.
• Pool volumes are not selected.
• There are not enough available LDEV IDs.
• There are not enough available cache management devices.

Change Deduplication System Data Volume Options: Opens the Change Deduplication System Data Volume Options window.

*Pool Name

Set the pool name. You can enter up to 32 case-sensitive and alphanumeric characters.

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%. If Enable is selected in Data Direct Mapping, 100% is specified automatically.

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. If Enable is selected in Data Direct Mapping, 100% is specified automatically.

Suspend TI pairs when depletion threshold is exceeded

For a Dynamic Provisioning pool that contains Thin Image pairs and snapshot data, specify whether SIM code 62Exxx is output when the pool used capacity exceeds the depletion threshold (default = yes). If you attempt to split a Thin Image pair in the pool after SIM code 62Exxx is output, the operation fails and the pair is suspended by error.

• Yes (default): When the pool used capacity exceeds the depletion threshold, SIM code 62Exxx is output, and Thin Image pairs in the pool cannot be split.

  If Multi-Tier Pool or Data Direct Mapping is enabled for the pool, Yes cannot be selected.

• No: When the pool used capacity exceeds the depletion threshold, SIM code 62Exxx is not output, and Thin Image pairs in the pool can be split.

Protect V-VOLs when I/O fails to Blocked Pool VOL

You can set this item if the following conditions are satisfied:

• Dynamic Provisioning is selected in Pool Type.
• Data Retention Utility is installed.

Select Yes or No in the protect function for DP-VOL. If this function is enabled, when the pool-VOL is blocked, DP-VOL is protected from reading and writing requests, and, at the same time, the access attribute of the DP-VOL is changed to the Protect attribute.

Protect V-VOLs when I/O fails to Full Pool

You can set this item if the following conditions are satisfied:

• Dynamic Provisioning is selected in Pool Type.
• Data Retention Utility is installed.

Select Yes or No in the protect function for DP-VOL. If this function is enabled, when the pool usage reaches the full size, DP-VOL is protected from reading and writing requests, and, at the same time, the access attribute of the DP-VOL is changed to the Protect attribute.

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 feature 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 feature 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 feature 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%.

Add

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

*Items with asterisks require configuration.

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.

For open systems, the displayed capacity is approximately 4.1 GB (capacity of the management area) less than the total capacity of the selected pool volumes.

As for a pool comprised of pool volumes assigned to accelerated compression-enabled parity groups, the writable capacity might be smaller than the displayed capacity.

Pool Type

Displays the pool type.

For a Dynamic Provisioning pool, DP is displayed.

For a Dynamic Tiering pool, DT is displayed.

For a pool being used for active flash, DT(Active Flash) is displayed.

For a pool with data direct mapping enabled, DP (data direct mapping) 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.

Encryption

Encryption: The encryption information of the pool.

• Enabled: Pool which is created by pool-VOLs whose encryption settings are enabled.
• Disable: Pool which is created by pool-VOLs whose encryption settings are disabled.
• Mixed: This status is displayed when two or more of the following are specified as pool-VOLs:
  • Volume encryption setting is enabled.
  • Volume encryption setting is disabled.
  • External volume

  Caution: The data encryption is not ensured in the pool that has the Mixed encryption setting. To manage the data encryption securely, use the pool with an encryption setting of Enabled or Disabled.

• Hyphen(-): Pool which is created by external volumes.

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.

Suspend TI pairs when depletion threshold is exceeded

Displays the setting for outputting SIM code 62Exxx when the pool used capacity exceeds the depletion threshold.

• Yes: When the pool used capacity exceeds the depletion threshold, SIM code 62Exxx is output.
• No: When the pool used capacity exceeds the depletion threshold, SIM code 62Exxx is not output.

Subscription Limit (%)

Displays subscription limit of the pool.

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

Protect V-VOLs when I/O fails to Blocked Pool VOL

Displays whether the protect function for DP-VOL is being enabled or disabled. If the setting is enabled, when the pool-VOL is blocked, DP-VOL is protected from reading and writing requests. And at the same instant, the access attribute of the DP-VOL is changed to the Protect attribute.

A hyphen appears if the pool corresponds with one of following:

• Data Retention Utility is not installed.
• Pool type is the type other than DP or DT.

Protect V-VOLs when I/O fails to Full Pool

Displays whether the protect function for DP-VOL is being enabled or disabled. If the setting is enabled, when the pool usage reaches the full size, DP-VOL is protected from reading and writing requests. And at the same instant, the access attribute of the DP-VOL is changed to the Protect attribute.

A hyphen appears if the pool corresponds with one of following:

• Data Retention Utility is not installed.
• Pool type is the type other than DP or DT.

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.

Deduplication

(Open systems)

If the pool type is HDP, this item displays Available or Not Available for the deduplication setting. If the pool type is other than HDP, 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.