Pools window

Summary

Item	Description
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. As for a pool comprised of pool volumes assigned to accelerated compression-disabled parity groups, the used capacity and total capacity of drives that are used in the pool and that support the accelerated compression function are displayed. 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: 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. 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. If the automatic adding pool volumes function is available, the storage system creates new pool volumes related to the pool usage rates, so that the estimated configurable capacity of Dynamic Provisioning may run low.

Pools tab

Item	Description
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 Root VOLs	Displays the number of root 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 the pool. For a pool that contains pool-volumes assigned to accelerated compression-enabled parity groups, the writeable capacity might be smaller than the displayed capacity. Click Option to select the desired capacity unit. One block = 512 bytes One page = 42 MB 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 reasons: Used displays the sum of the mapped capacity and reserved capacity, which are rounded up on each page. The mapped capacity of a DP-VOL includes the capacity of the control information (uses a maximum of 168 MB per 3,145,548 MB). A 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 (rounded down to the nearest integer). For Dynamic Provisioning, Dynamic Tiering, and Thin Image pools, a hyphen (-) is displayed if the capacity unit is changed to Cylinder.
Data Volumes Used Capacity¹	Displays the user data capacity other than the deduplication system data volumes. The user data before the processing of the accelerated compression and the capacity saving is displayed.
Saving Effect¹	The capacity saving rates and capacity that is reduced by accelerated compression and the capacity saving function (compression and deduplication). Saving Ratio: Displays the ratio of the user data capacity before and after performing the capacity saving and the accelerated compression functions. Saving¹: Displays the saved capacity for a pool. The total value of the capacity expansion function and the capacity saving function.
Software Saving	Displays the information about the data capacity reduced by the capacity saving function, which includes compression and deduplication. A hyphen (-) is displayed if no DP-VOLs that the capacity saving settings are "Compression" or "Deduplication and Compression" are associated with the pool. For details about each item, see Capacity saving function: data deduplication and compression. Saving Ratio¹: Displays the capacity reduction ratio for data which is before and after processing by the capacity saving function. If there is no data which can be displayed, a hyphen (-) is displayed. Compression Ratio¹: Displays the capacity compression ratio for data which is before and after processing by the capacity saving function. If there is no data which can be displayed, a hyphen (-) is displayed. Deduplication Ratio¹: Displays the capacity deduplication ratio by the capacity saving function. If there is no data which can be displayed, a hyphen (-) is displayed. Saving¹: Displays the saved capacity by the capacity saving function. This is the value that System Data is deducted from the total capacity of Compression Deduplication and Reclaim. Compression: Displays the compressed capacity by the capacity saving function. Deduplication¹: Displays the deduplicated capacity by the capacity saving function. Pattern Matching¹: Displays the reclaimed capacity by the capacity saving function. System Data¹: Displays the system data consumed by the capacity saving function. This data includes meta data, garbage data, and deduplication system data volumes (fingerprint). Used (Pre Processed Data)¹: Displays the data capacity before performing of the capacity saving function.
FMD Saving¹	Displays the information about the data capacity saved by the accelerated compression function. If the pool does not support accelerated compression, a hyphen (-) is displayed. Compression Ratio¹: Displays the capacity compression ratio for data, before and after processing. If there is no data which can be displayed, a hyphen (-) is displayed. If the formatting progress percentage of the pool formatted capacity is less than 100%, because the non-formatted data exists in FMD-DC2 , the saving ratio might be different from what you expect. For details about the formatted pool capacity, see the item for Free + Reserved in View Pool Management Status window. Saving¹: Displays the reduced capacity by the accelerated compression function, which is calculated as the total of Compression and Reclaim. Compression¹: Displays the compressed capacity by the accelerated compression function. Pattern Matching¹: Displays the reclaimed capacity by the accelerated compression function.
Logical FMD Capacity¹	Displays the logical capacity of pool volumes assigned to accelerated compression-enabled parity groups used in the pool. If the pool does not include pool volumes assigned to accelerated compression-enabled parity groups, a hyphen (-) is displayed. Total¹: Displays the total capacity for the pool volumes assigned to accelerated compression-enabled parity groups. Used¹: Displays the used capacity of the pool volumes assigned to accelerated compression-enabled parity groups. 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), one of following status icons 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 shows 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. : 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.
FMD Capacity¹	For pool volumes assigned to accelerated compression-enabled parity groups used in the pool, this item displays the capacity guaranteed for writing. If the pool does not include pool volumes assigned to accelerated compression-enabled parity groups, a hyphen (-) is displayed. Total¹: Displays the total pool capacity of pool volumes assigned to accelerated compression-enabled parity groups. Used¹: Displays the used capacity compressed by pool volumes assigned to accelerated compression-enabled parity groups.
Efficiency	This item is blank if the calculation for the following items is not finished. A hyphen (-) is displayed if the information is invalid. System data is not included in the ratio displayed for the items below, except the calculation date. Total Efficiency Ratio¹: Displays the ratio of the total saving effect achieved by accelerated compression, capacity saving (compression and deduplication), snapshot, and Dynamic Provisioning. Data Reduction Ratio¹: Displays the data reduction ratio before and after accelerated compression and capacity saving (compression and deduplication). Software Saving Ratio¹: Displays the capacity reduction ratio before and after capacity saving. Software Compression Ratio¹: Displays the capacity compression ratio before and after capacity saving. Software Deduplication Ratio¹: Displays the capacity deduplication ratio before and after capacity saving. Software Pattern Matching Ratio¹: Displays the capacity reduction ratio before and after the pattern matching function of capacity saving. FMD Saving Ratio¹: Displays the capacity reduction ratio before and after accelerated compression. FMD Compression Ratio¹: Displays the capacity compression ratio before and after accelerated compression. FMD Pattern Matching Ratio¹: Displays the capacity reduction ratio before and after the pattern matching function of accelerated compression. Snapshot Efficiency Ratio¹: Displays the efficiency ratio achieved by snapshot. Provisioning Efficiency (%)¹: Displays the efficiency ratio achieved by Dynamic Provisioning. Calculation date ¹: Displays the start and end times for the calculation. These times are based on the system date and time (date, time, and timezone) of the storage system. Note: For Last Updated in HDvM - SN, the system date and time of the SVP is displayed. If the storage system time is different from the SVP time, the time displayed for the calculation is different from the time displayed for Last Updated. For details about system date and time settings for storage systems and SVPs, see the Service Processor Technical Reference.
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.
Suspend TI pairs when depletion threshold is exceeded¹	Displays whether SIM code 62Exxx is output when the pool used capacity exceeds the depletion threshold. Yes: When the pool used capacity exceeds the depletion threshold, SIM code 62Exxx is output, and Thin Image pairs in the pool cannot be used. 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 used.
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: 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 is created by external volumes. Or pool is being blocked.
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: Does not appear by default. To display this item, change the Column Settings of the table option. Available when you click More Actions.