View Pool Management Status window

Pool Management Status table

Item

Description

Pool Name (ID)

Displays the pool name and pool ID.

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.

Number of V-VOLs

Displays the number of V-VOLs associated with the pool, and the maximum number of V-VOLs that can be associated with the pool.

If you select a Dynamic Provisioning, Dynamic Tiering, or active flash pool, this item appears.

If the pool of a data direct mapping attribute is selected, a hyphen (-) appears for the maximum number of V-VOLs which can associate with the pool.

Number of Primary VOLs

Displays the number of primary volumes of Thin Image pairs that are associated with the pool.

If you select a Thin Image pool, this item appears.

Number of Pool VOLs

Displays the number of pool-VOLs set for the pool, and the maximum number of pool-VOLs that can be set for the pool.

Pool Management Task (Status/Progress)

Displays the status and progress ratio of the pool management task being performed to the pool, and average progress ratio of the each V-VOL in 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.

The following values that are displayed in the Virtual Volume table or in the Primary Volume table can not correspond with the value displayed for this item. This is because the progress of the pool management task is calculated after the progress of each V-VOL displayed in the Virtual Volume table or the Primary Volume table is calculated.

  • Pool Management Task - Status

  • Pool Management Task - Progress(%)

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 an active flash pool.

Capacity

  • Used/Total: Displays the used and total pool capacity. If the pool consists of multiple pool-VOLs, the sum of its capacities is displayed in the Total field.

  • Free: Displays the free and formatted pool capacity. If the pool consists of multiple pool-VOLs, the sum of its capacities is displayed in the Total field.

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

Tier Management

If Dynamic Tiering is enabled, Auto or Manual of performance monitoring and tier relocation is displayed. If Dynamic Tiering is disabled, 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.

If the monitoring is being performed, In Progress is displayed. A hyphen (-) is displayed other than this case.

Relocation Speed/Actual

Displays the tier relocation speed: 1(Slowest), 2(Slower), 3(Standard), 4(Faster), or 5(Fastest). Actual displays the measured value of the tier relocation capacity per second.

Virtual Volume table

If you select a Dynamic Provisioning (including the pool of the data direct mapping attribute), Dynamic Tiering, or active flash pool, this table appears.

Item

Description

LDEV ID

Displays the LDEV identifier, which is the combination of LDKC, CU, and LDEV.

LDEV Name

Displays the LDEV name.

Pool Management Task

  • Status: 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.

  • Progress(%): Displays V-VOL progress percentage (%) of the pool management task being performed. A hyphen (-) is displayed when the pool management task is not performed.

V-VOL Management Task

  • Status: Displays the V-VOL management task being performed to V-VOL.

Reclaiming Zero Pages: The zero page reclaim processing that is being performed.

Waiting for Zero Page Reclaiming: The zero page reclaim processing

Blank:The V-VOL management task is not being performed to V-VOL.

  • Progress(%): Displays the progress percentages (%) of the V-VOL management task being performed. A hyphen (-) is displayed when the V-VOL management task is not performed.

Capacity

  • Total: Displays the V-VOL capacity.

  • Reserved: Displays the reserved capacity of the V-VOL.

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

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

  • The mapped capacity of V-VOL for Dynamic Provisioning includes the capacity of control information (168 MB is required per 3,145,548 MB).

  • Used: Displays the 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 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.

  • If used capacity is referenced during I/O or copy processing by software such as ShadowImage or Universal Replicator, the used capacity displayed might be different from the actual capacity even if the full allocation is enabled on the V-VOL. This is caused by a gap between the times that information is gathered about the mapped capacity and the reserved capacity.

  • Used(%): For the entire capacity of V-VOL, this item displays percentages of the sum of the mapped capacity and the reserved capacity. If the logical volume is not the volume other than V-VOL, a hyphen (-) is displayed.

Full Allocation

Displays the status of the setting for the full allocation in a pool associated with the V-VOL.

  • Enable: Pages are reserved.

  • Disable: Pages are not reserved.

Tiering Policy

Displays the tiering policy name and identifier.

All(0): Policy in which all tiers of the pool are used.

Level1(1) - Level5(5):Policy selected from levels 1 to 5 is set to the V-VOL.

Level6(6) - Level31(31): Policy defined by the user and set to the V-VOL.

Hyphen (-): V-VOL is not the V-VOL of Dynamic Tiering or active flash V-VOL.

New Page Assignment Tier

Displays the new page assigned tier.

High: High is set to V-VOL.

Middle: Middle is set to V-VOL.

Low: Low is set to V-VOL.

Hyphen (-): V-VOL is not the Dynamic Tiering or active flash V-VOL.

Tier Relocation

Displays whether tier relocation is set to enable or disable. If the Dynamic Tiering or active flash V-VOL is not used, a hyphen (-) is displayed.

Relocation Priority

Displays the relocation priority.

Prioritized: The priority is set to V-VOL.

Blank: The priority is not set to V-VOL.

Hyphen (-): V-VOL is not the Dynamic Tiering or active flash V-VOL or the tier relocation function is disabled.

Attribute

Displays the attribute of the LDEV.

Data Direct Mapping: LDEV of the data direct mapping attribute.

Hyphen (-): Volume in which the attribute is not defined.

Virtual Storage Machine

Information about the virtual storage machine.

  • Model / Serial Number: Model name and serial number of the virtual storage machine that has LDEV.

  • LDEV ID: Virtual LDEV ID. If a Virtual LDEV ID is not assigned to LDEV, this column is blank.

  • Device Name: Virtual device name, which is a combination of the virtual emulation type, virtual LUSE volume number, and the virtual CVS attribute. Values of the virtual emulation type, virtual LUSE volume number, and virtual CVS attribute appear only for items that have been set. This column is blank when the virtual emulation type, virtual LUSE volume number, and virtual CVS attribute are not set. If the virtual CVS attribute is set, CVS is attached as the suffix to the device name.

  • SSID: Virtual SSID. If Virtual SSID is not set for LDEV, this column is blank.

Primary Volumes table

Item

Description

LDEV ID

Displays the LDEV identifier which is the combination of LDKC, CU, and LDEV.

LDEV Name

Displays the LDEV name.

Pool Management Task

  • Status: 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 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.

  • Progress (%): Displays a progress percentage (%) of a pool management task being performed on each primary volume. A hyphen (-) is displayed when the pool management task is not performed.

Used Pool Capacity

Displays the used pool capacity.

Pool Usage(%)

Displays the pool usage ratio.

Virtual Storage Machine

Information about the virtual storage machine.

  • Model / Serial Number: Model name and serial number of the virtual storage machine that has LDEV.

  • LDEV ID: Virtual LDEV ID. If a Virtual LDEV ID is not assigned to LDEV, this column is blank.

  • Device Name: Virtual device name, which is a combination of the virtual emulation type, virtual LUSE volume number, and the virtual CVS attribute. Values of the virtual emulation type, virtual LUSE volume number, and virtual CVS attribute appear only for items that have been set. This column is blank when the virtual emulation type, virtual LUSE volume number, and virtual CVS attribute are not set. If the virtual CVS attribute is set, CVS is attached as the suffix to the device name.

  • SSID: Virtual SSID. If Virtual SSID is not set for LDEV, this column is blank.