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# View volumes

A storage volume is an identifiable unit of data storage. Storage groups are sets of volumes.

## Prerequisites

See Roles and associated permissions to determine the user roles that can perform this task.

## About this task

To view volumes associated with an OR director, see View volumes associated with OR director. To view volumes associated with a storage group, see the following steps.

## Steps

1. Select the storage system.
2. Select Storage > Storage Groups to open the Storage Group list view.
3. Select the storage group and click to open its Details view.
4. Click the number next to Volumes to open the Volumes list view.
   Use the Volumes list view to view and manage the volumes in a storage group.
5. The following properties display:
   - Name—Assigned volume name
   - Type—Type of volume
   - Allocated %—Percentage allocated
   - Capacity (GB)—Volume capacity in GB
   - Unreducible (GB)—Amount that an allocated volume is unreducible (only available on storage systems running PowerMaxOS 5978 Q1 2021 SR).
   - Emulation—Emulation type for the volume
   - Multiple SG—Indicates if there are multiple SGs.
   - Status—Volume status

   The following controls are available, depending on the storage operating environment:

   - Create — Create volumes
   - Expand— Expand existing volumes
   - Add Volumes to SG— Add volumes to storage groups
   - Remove Volumes— Remove volumes from storage groups
   - Copy Volumes to SG— Copy volumes between storage groups
   - Move Volumes to SG— Move volumes between storage groups
   - Set Volumes > Emulation— Set volume emulation
   - Set Volumes > Attributes— Set volume attributes
   - Set Volumes > Mobility ID— Set a device identity
   - Set Volumes > Identifier— Set volume identifiers
   - Set Volumes > Status— Set volume status
   - Set Volumes > QoS— QOS for replication
   - Allocate/Free/Reclaim > Start— Manage thin pool allocations
   - Allocate/Free/Reclaim > Stop— Manage thin pool allocations
   - Configuration > Change Volume Configuration— Change volume configuration
   - Configuration > Map— Map volumes
   - Configuration > Unmap— Unmap volumes
   - Configuration > z/OS Map— z/OS map from the Volumes (Storage Groups) list view and z/OS map FBA volumes from the Volumes (Storage Groups) list view
   - Configuration > z/OS Unmap— z/OS unmap from the Volumes (Storage Groups) list view and z/OS unmap FBA volumes from the Volumes (Storage Groups) list view

   Click to view the related volume list view.

   The following properties display:

   - Masking Info—Number of masking views associated with the storage group
   - Storage Groups—Number of associated storage groups
   - SRP—Number of associated SRPs
   - FBA Front End Paths —Number of associated FBA Front-End Paths
   - RDF Info —SRDF Info
   - CU Image Number—CU image number
   - Volume Name—Volume name
   - Split Name—Split name
   - Physical Name—Physical name
   - Volume Identifier—Volume identifier
   - Type—Volume configuration
   - Status—Volume status
   - Reserved—Indicates if the volume is reserved.
   - Capacity (GB)—Volume capacity in GBs
   - Capacity (MB)—Volume capacity in MBs
   - Capacity (CYL)—Volume capacity in cylinders
   - Data Reduction Ratio—Data reduction ratio
   - Unreducible (GB)—amount that an allocated volume is unreducible (only available on storage systems running PowerMaxOS 5978 Q1 2021 SR).
   - Emulation—Volume emulation
   - System—Storage system on which the volume resides.
   - System Vol ID—Storage system volume name or number
   - HP Identifier Name—User-defined volume name (1-128 alphanumeric characters) that is applicable to HP-mapped devices - this value is mutually exclusive of the VMS ID.
   - VMS Identifier Name—Numeric value (not to exceed 32766) with relevance to VMS systems - this value is mutually exclusive of the HP ID.
   - WWN—World Wide Name of the volume
   - External Identity WWN—External Identity World Wide Name of the volume
   - DG Name—Name of the device group in which the volume resides, if applicable.
   - CG Name—Name of the device group in which the volume resides, if applicable.
   - Attached BCV—Defines the attached BCV to be paired with the standard volume
   - Attached VDEV TGT Volume—Volume to which this source volume would be paired.
   - RDF Type—SRDF configuration
   - Geometry - Type—Method used to define the geometry of the volume.
   - Geometry - Number of Cylinders—Number of cylinders
   - Geometry - Sectors per Track—Number of sectors per track, as defined by the geometry of the volume
   - Geometry - Tracks per Cylinder—Number of tracks per cylinder, as defined by the geometry of the volume
   - Geometry - 512 Block Bytes—Number of 512 blocks, as defined by the geometry of the volume
   - Geometry - Capacity (GB)—Geometry capacity in GBs
   - Geometry - Limited—Indicates if the volume is geometry limited.
   - SSID—Subsystem ID
   - Capacity (Tracks)—Capacity in tracks
   - SA Status—Volume SA status
   - Host Access Mode—Host access mode
   - Pinned—Indicates if the volume is pinned.
   - RecoverPoint Tagged—Indicates if the volume is tagged for RecoverPoint .
   - Service State—Service state
   - Defined Label Type—Type of user-defined label
   - Dynamic RDF Capability—SRDF capability of the volume
   - Mirror Set Type—Mirror set for the volume and the volume characteristic of the mirror
   - Mirror Set DA Status—Volume status information for each member in the mirror set
   - Mirror Set Invalid Tracks—Number of invalid tracks for each mirror in the mirror set
   - Priority QoS—Priority value assigned to the volume -valid values are 1 (highest) through 16 (the lowest).
   - Copy Pace - RDF—Copy pace priority during SRDF operations
   - Copy Pace - Mirror Copy—Copy pace priority during mirror operations
   - Copy Pace - Clone—Copy pace priority during clone operations
   - Copy Pace - VLUN—Copy pace priority during virtual LUN operations
   - Dynamic Cache Partition Name—Name of the cache partition
   - Base Address—Base address
   - AS400 Gatekeeper—AS400 Gatekeeper indication
   - DIF1—DIF1 indication
   - Mobility ID Enabled—Mobility ID enabled indication
   - GCM—GCM Flag set indication
   - XtremSW Cache Attached—Indicates if the XtremSW cache is attached to the volume.
   - Persistent Allocation—Persistent Allocation indication
   - Optimized Read Miss—Cacheless read miss status.
   - PowerPath Hosts—Number of PowerPath hosts (only available on storage systems running PowerMaxOS 5978)
   - Mounted—Mounted indication (only available on storage systems running PowerMaxOS 5978
   - Process—Process (only available on storage systems running PowerMaxOS 5978)
   - Oracle Instance Name—Oracle Instance Name (only available on PowerMaxOS 5978 storage systems running 9.1 or later)
   - Encapsulated Volume—Indicates if the external volume is encapsulated - relevant for external disks only.
   - Encapsulated WWN—World Wide Name for encapsulated volume - relevant for external disks only
   - Encapsulated Device Flag—Encapsulated device flag
   - Encapsulated Device Array ID—Encapsulated device array ID
   - Encapsulated Device Name—Encapsulated device name
   - Last time used—Last time used
   - Device Encryption—Indicates if the device is encrypted.

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