Pool Capacity¹

Displays information about the pool capacity.

• Used/Total

Dynamic Provisioning (DP): Displays the pool capacity (the used capacity and the total pool capacity) of Dynamic Provisioning, Dynamic Tiering, and active flash.

Thin Image (TI): Displays the pool capacity (used/total) of Thin Image.

For each value, if the Estimated Configurable capacity is zero, is displayed in the cell.

• Estimated Configurable²

Dynamic Provisioning (DP): Displays the estimated pool capacity of Dynamic Provisioning, Dynamic Tiering, and active flash.

Thin Image (TI): Displays the remaining physical pool capacity that is configurable for Thin Image.

V-VOL Capacity¹

Displays information about the DP-VOL capacity.

• Allocated/Total

Dynamic Provisioning (DP): In the Allocated field, total capacity of the Dynamic Provisioning, Dynamic Tiering, and active flash DP-VOLs to which LU paths are allocated is displayed. In the Total field, total capacity of the Dynamic Provisioning, Dynamic Tiering, and active flash DP-VOLs is displayed.

For each value, if the Estimated Configurable capacity is zero, is displayed in the cell.

• Estimated Configurable²

Dynamic Provisioning (DP): Displays the DP-VOL estimated configurable capacity of Dynamic Provisioning, Dynamic Tiering, and active flash.

Licensed Capacity (Used / Licensed)

Dynamic Provisioning (DP): Displays the licensed capacity of Dynamic Provisioning. Used displays the total capacity of pools for Dynamic Provisioning, Dynamic Tiering, and active flash.

Thin Image (TI): Displays the licensed capacity of the Thin Image.

Caution: In the Licensed Capacity(Used/Licensed) field, the total capacity of the system is displayed. The total capacity of the system includes capacities of LDEVs assigned to each user and resources other than LDEVs. Therefore, the value displayed as the "Used" Licensed Capacity (Used/ Licensed) might differ from the value of the "Total" Pool Capacity.

Number of Pools

Displays the total number of pools for Dynamic Provisioning, Dynamic Tiering, active flash, and Thin Image.

Edit Tiering Policies

Displays the Edit Tiering Policies window.

Notes:

1. The total value of the Total cells under Capacity of each pool type in the Pools tab and the total Used capacity of the Pool Capacity in the Summary table are almost same, but small differences might occur.

If the pool-VOL or DP-VOL for Dynamic Provisioning is created, the estimated configurable pool capacity and estimated configurable V-VOL capacity for Dynamic Provisioning (DP) change. The estimated capacity is calculated based on the configuration of current pools and DP-VOL, and remaining capacity of the control memory.

2. The estimated configurable capacity of Dynamic Provisioning is the estimate of the DP-VOL capacity or the pool capacity that can be created by using the remaining capacity of the control memory after deduction of the capacity of the shared memory used by the current pool and DP-VOL. The value of Estimated Configurable can be used only as a guide, but are not guaranteed to create pools and DP-VOLs having the estimated configurable capacity. If the pool-VOL or DP-VOL for Dynamic Provisioning is created or deleted, the estimated configurable pool capacity and estimated configurable V-VOL capacity for both Dynamic Provisioning change.

Pool Name

Displays the pool name. Clicking the pool name takes you to the pool information window in the lower hierarchy.

Pool ID¹

Displays pool ID.

Status

Displays information about the pool status.

Normal: Pool is in a normal status.

Warning: Pool-VOL in the pool is blocked, or the pool is being shrunk.

Exceeded Threshold: Used capacity of the pool exceeds the pool threshold.

Shrinking: Pool-VOL is being reduced.

Blocked: Pool is full, or an error occurred in the pool, indicating that the pool is blocked. If the pool is in both Warning and Blocked status, only Blocked is displayed.

Number of Pool VOLs

Displays the number of pool-VOLs associated with the pool.

Number of V-VOLs

Displays the number of V-VOLs associated with the pool.

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

Number of Primary VOLs

Displays the number of primary volumes of the Thin Image pairs. If a pool is other than the Thin Image pool, a hyphen (-) is displayed.

RAID level

Displays RAID level. 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 information about the pool capacity.

• Total: Total capacity of pool.

Regarding the pool using pool-VOLs assigned from the accelerated compression-enabled parity groups, the writable capacity may be smaller than the displayed capacity.

Using Option, you can select unit of capacity.

One block means 512 bytes and one page means 42 megabytes in a pool capacity of Dynamic Provisioning, Dynamic Tiering, active flash, or Thin Image,

• Reserved: Displays the reserved capacity of the pool.

The displayed value of Reserved might be larger than the displayed value of Total due to following reason:

• Reserved displays reserved capacity that is rounded up on each page.

• The mapped capacity of DP-VOL includes the capacity of the control information (Requires a maximum of 168 MB per 3,145,548 MB).

• Used: Sum of the mapped capacity and the reserved capacity.

The displayed value of Used might be larger than the displayed value of Total due to the following reasons:

• Used displays the sum of the mapped capacity and the reserved capacity that is rounded up on each page.

• The mapped capacity of DP-VOL includes the capacity of the control information (Uses a maximum of 168 MB per 3,145,548 MB).

• DP-VOL of the data direct mapping attribute includes the control information (168 MB is used per 3,145,548 MB) and the capacity for one page.

• Used (%): On a pool capacity basis, percentages of the sum of the mapped capacity and the reserved capacity.

Used (%) displays the value which is truncated after the decimal point of the actual value.

For the pool of Dynamic Provisioning, Dynamic Tiering, and Thin Image, a hyphen (-) is displayed if the unit of capacity is changed into Cylinder.

Physical Capacity¹

For a pool comprised of pool volumes that supports accelerated compression, this item displays the capacity reserved for writing. If accelerated compression is not supported, a hyphen (-) is displayed.

• Total: Displays the total pool capacity reserved for writing.

• Used: Displays the used pool capacity. The used capacity deducts the free capacity reserved for writing from the total pool capacity reserved for writing. For the pool consisting of pool-VOLs assigned from the accelerated compression-enabled parity groups, the compressed data capacity is included in the used capacity.

• Used (%): Displays the percentage of the pool used capacity against the total capacity reserved for writing.

Capacity Expansion Rate (%)¹

For a pool comprised of pool volumes that support accelerated compression, this item displays the percentage of the total capacity in relation to the capacity reserved for writing. If accelerated compression is not supported, a hyphen (-) is displayed.

Physical FMC Pool Volumes Capacity¹

For FMC pool volumes used in the pool, this item displays the capacity reserved for writing. If the pool does not include FMC pool volumes, a hyphen (-) is displayed.

• Total: Displays the total capacity of FMC pool volumes reserved for writing.

• Used: Displays the used capacity of FMC pool volumes after they are compressed.

FMC Pool Volumes Capacity¹

Displays the capacity of FMC pool volumes used in the pool. If the pool does not include FMC pool volumes, a hyphen (-) is displayed.

• Total: Displays the total capacity of FMC pool volumes.

• Used: Displays the used capacity of FMC pool volumes.

• Saving: Displays the capacity reduced by data compression.

• Saving (%): Displays the percentage of the capacity reduced by data compression in relation to the used capacity before the data compression.

• Expansion Rate (%): Displays the percentage of the total capacity of FMC pool volumes in relation to the total capacity of FMC pool volumes reserved for writing.

User-Defined Threshold (%)

Displays information about the threshold of a pool.

• Warning: Warning threshold.

• Depletion: Depletion threshold.

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

Subscription (%)

Displays information about subscription of the pool.

• Current: Percentage of the total V-VOL capacity assigned to the pool.

• Limit: Percentage of the subscription limit of the pool.

For a Thin Image pool, a hyphen (-) is displayed for Current and Limit.

Pool Type

Displays the pool type.

For a Dynamic Provisioning pool, DP is displayed.

For a Dynamic Tiering pool, DT is displayed.

For an active flash pool, DT(Active Flash) is displayed.

For a pool of the data direct mapping attribute, DP (data direct mapping) is displayed.

For a Thin Image pool, TI is displayed.

Drive Type/RPM

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

Tier Management

Displays whether Dynamic Tiering is enabled or disabled. If it is enabled Auto or Manual is displayed. If it is disabled, a hyphen (-) is displayed.

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

Encryption

Displays the encryption information about the pool.

• Enable: Encryption setting of a pool-VOL containing LDEV is enabled.

• Disable: Encryption setting of a pool-VOL containing LDEV is disabled.

• Mixed: In the pool, pool-VOLs whose encryption settings are enabled or disabled are intermixed.

This status appears 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(-): The pool is created by external volumes or is being blocked.

Shrinkable

Displays whether the pool-VOL can be removed. While the pool is being shrunk, a hyphen (-) is displayed.

Monitoring Mode

Displays the monitoring mode that is set for the pool. If the continuous mode is enabled, Continuous Mode is displayed. If the period mode is enabled, Period Mode is displayed. If Dynamic Tiering is disabled, a hyphen (-) is displayed.

Monitoring Status

Displays the status of pool monitoring.

• In Progress: The monitoring is being performed.

• During Computation: The calculating is being processed.

Other than these cases, a hyphen (-) is displayed.

Recent Monitor Data

Displays the latest monitoring data.

• If the monitoring data exists, the monitoring period of time is displayed.

Example: 2010/11/15 00:00 - 2010/11/15 23:59

• If the monitoring data is being obtained, only the starting time is displayed.

Example: 2010/11/15 00:00 -

• If the latest monitoring data does not exist, a hyphen (-) is displayed.

Pool Management Task

Displays the pool management task being performed to the pool.

• Waiting for Rebalance: The rebalance process is waiting.

• Rebalancing: The rebalance process is being performed.

• Waiting for Relocation: The tier relocation process is waiting.

• Relocating: The tier relocation process is being performed.

• Waiting for Shrink: The pool shrinking process is waiting.

• Shrinking: The pool shrinking process is being performed.

• Blank: The pool management task is not being performed to the pool.

For details about the tier relocation, see the tier relocation log file.

Relocation Result

Displays the status of the tier relocation processing.

In Progress: The status of Pool Management Task is Waiting for Relocation or Relocating.

Completed: The tier relocation operation is not in progress, or the tier relocation is complete.

Uncompleted (n% relocated): The tier relocation is suspended at the indicated percentage progression.

Hyphen (-): The pool is not a Dynamic Tiering or active flash pool.

Relocation Speed

Displays the tier relocation speed: 1(Slowest), 2(Slower), 3(Standard), 4(Faster), or 5(Fastest).

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 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 other than DP or DT.

Create Pools

Displays the Create Pools window.

Create LDEVs

Displays the .

Expand Pool

Displays the Expand Pool window.

Delete Pools²

Displays the Delete Pools window.

Restore Pools²

Displays the Restore Pools window.

Edit Pools²

Displays the Edit Pools window.

Monitor Pools²

Displays the Monitor Pools window.

Stop Monitoring Pools²

Displays the Stop Monitoring Pools window.

Start Tier Relocation²

Displays the Start Tier Relocation window.

Stop Tier Relocation²

Displays the Stop Tier Relocation window.

View Tier Properties²

Displays the View Tier Properties window. This window can be viewed only for the pools for which Dynamic Tiering is enabled.

View Pool Management Status²

Displays the View Pool Management Status window.

Export Tier Relocation Log²

Displays the window to download the result of the tier relocation.

Export²

Displays the window for outputting table information.

Notes:

¹Does not appear by default. To display this item, change the Column Settings window.

²Appears when you click More Actions.