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# View thin volume details

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

This procedure explains how to view thin volume details.

## Steps

1. Select the storage system.
2. Select Storage > Volumes.
3. Filter on a thin volume type, such as TDEV.
4. Select a thin volume and click to open the Details 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 information
   - Volume Name—Volume 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
   - Emulation—Volume emulation
   - Symmetrix ID—Storage system on which the volume resides.
   - Symmetrix Vol ID—Storage system volume name or number
   - HP Identifier Name—User-defined volume name (1-128 alphanumeric characters), 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 volume geometry.
   - Geometry - Tracks per Cylinder— Number of tracks per cylinder, as defined by the volume geometry.
   - Geometry - 512 Block Bytes—Number of 512 blocks, as defined by the volume geometry.
   - 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 that is 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
   - Compressed Size (GB)—Compressed size (GB)
   - Compressed Percentage —Compressed percentage
   - Compressed Size Per Pool (GB) —Compressed Size Per Pool (GB)
   - 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 volume is encryption capable.

   The Details view links you to views displaying objects contained in and associated with the virtual volume. Each link is followed by a number, indicating the number of objects in the corresponding view. For example, clicking the number next to Storage Group opens a view listing the storage groups that are associated with the volume.

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