Pool Capacity¹

Displays information about the pool capacity.

• Used/Total

• Dynamic Provisioning(DP): Displays the pool capacity (the sum of 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, and active flashDynamic Tiering DP-VOLs to which LU paths are allocated is displayed. In the Total field, total capacity of the Dynamic Provisioning, Dynamic Tiering, and active flashDP-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)

Displays information about available licensed capacity.

• 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 window 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 shared 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 shared memory after deduction of the capacity of the shared memory used by the current pool and DP-VOL. The values of the Estimated Configurable Pool Capacity and the Estimated Configurable V-VOL Capacity 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 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 the pool is other than a 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. As for a pool comprised of pool-volumes assigned to accelerated compression-enabled parity groups, the writeable capacity might 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 page capacity of the pool.

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

• Reserved displays reserved page 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 reserved capacity.

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

• Used displays the sum of the mapped capacity and reserved capacity, which are 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 with data direct mapping attribute includes the control information (168 MB is used per 3,145,548 MB) and capacity for one page.

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

Saving Effect¹

The capacity saving rates and capacity that is reduced by the capacity expansion function and the capacity saving functions of compression and deduplication. A hyphen appears if the pool does not support the capacity expansion function or the capacity saving function.

• Saving (%)¹: Displays the capacity saving rate for a pool. The total value of Deduplication (%) and Compression (%).

• Saving¹: Displays the saved capacity for a pool. The total value of the capacity expansion function and the capacity saving function.

• Deduplication (%)¹: Displays the data capacity rate reduced by the deduplication function in the pool used capacity.

• Compression (%)¹: Displays the data capacity rate reduced by the capacity expansion function and the compression function in the pool used capacity.

Physical Capacity¹

For a pool containing pool volumes that support accelerated compression, this item displays the capacity assured for writing. If accelerated compression is not supported, a hyphen (-) is displayed.

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

• Used: Displays the used capacity of the pool. The used capacity is the capacity deducted from the free capacity assured for writing from the total pool capacity assured for writing. For a pool comprised of pool volumes assigned to accelerated compression-enabled parity groups, the compressed data capacity is included in the used capacity.

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

Capacity Expansion Rate (%)¹

For a pool containing pool volumes that support accelerated compression, this item displays the percentage of the total capacity with respect to the capacity assured for writing.

If the accelerated compression is not supported, a hyphen (-) is displayed.

Physical FMC Pool Volumes Capacity ¹

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

• Total: Displays the total capacity of FMC pool volumes for which writing is assured.

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

FMC Pool Volumes Capacity

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

• Total¹: Displays the total capacity of FMC pool volumes.

• Used¹: Displays the used capacity of FMC pool volumes.

• Saving¹: Displays the capacity reduced by data compression.

• Saving (%)¹: Displays the percentage of the capacity reduced by data compression with respect to the used capacity before the data compression.

• Expansion Rate (%): Displays the percentage of the total capacity of FMC pool volumes with respect to the total capacity of FMC pool volumes assured for writing. If either the used pool capacity or the used physical pool capacity exceeds 50% of the depletion threshold (the warning threshold for the Thin Image pool), an icon of one of following statuses appears:

: In all accelerated compression-enabled parity groups, this status shows that the expansion rate and the saving ratio are balanced.

: In one or more accelerated compression-enabled parity groups, this status show that an excess of the unanticipated usage might occur. In this case, consider revising the total capacity of LDEVs (pool volumes) carved from these parity groups. For details, see Guidelines for pools when accelerated compression is enabled.

:

In one or more accelerated compression-enabled parity groups, this status shows that the accelerated compression function is not performed in the effective utilization. However, if there is a parity group with a status (see above) in the pool, then this icon does not appear. In this case, consider revising the total capacity of LDEVs (pool volumes) carved from these parity groups. For details, see Guidelines for pools when accelerated compression is enabled.

Pool Saving (Post Process Data)

The data capacity reduction provided by the capacity saving function, which includes compression and deduplication. A hyphen (-) is displayed if the capacity saving function is not supported.

• Saving (%): Displays the capacity reduction (%) provided by the capacity saving function, which is calculated as the ratio of Saving to Pre Saving Used.

• Saving: Displays the capacity reduction (bytes) provided by the capacity saving function.

• Used (Pre Processed Data): Displays the data capacity before the reduction provided by the capacity saving function.

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 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 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.

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: In the pool, pool-VOLs of which encryption settings are enabled and disabled are intermixed.

This status appears when two or more of 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 is created by external volumes. Or pool is being blocked.

This item is not displayed when using Virtual Storage Platform G200.

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.

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 being waited.

• Rebalancing: The rebalance process is being performed.

• Waiting for Relocation: The tier relocation process is being waited.

• Relocating: The tier relocation process is being performed.

• Waiting for Shrink: The pool shrinking process is being waited.

• 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 Tieringor 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.

Deduplication¹

For a DP pool, the deduplication setting of the pool.

• Available: The deduplication setting for the pool is enabled.

• Not Available: The deduplication setting for the pool is disabled.

Create Pools

Displays the Create Pools window.

Create LDEVs

Displays the Create LDEVs window.

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:

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

2. Available when you click More Actions.