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# View SRDF protected storage group pair properties

Symmetrix Remote Data Facility (SRDF) facilitates the data replication from one storage system to another through a storage area network or Internet Protocol (IP) network.

## Steps

1. Select the storage system.
2. Click Data Protection to view the Protection dashboard and select SRDF from the Protection section of the summary panel.
3. Select a storage group and click to open the storage group list view.
4. Click the number next to SRDF pairs to open the SRDF pair list view.
5. Select a pair and click to open the SRDF pair list properties panel.

   A graphic displaying the replication configuration is displayed. It shows the following items:

   - Containers representing the R1 and R2 volumes. The color of the container indicates the status of the container:
     - Read write enabled
     - Write disabled
     - Connectivity lost
   - An arrow indicating the direction of I/O
   - A central icon and label that indicates the state of the replication pair.
     - Synchronized, Consistent, ActiveActive, ActiveBias
     - Synchronization in progress
     - Suspended, Split, Failed Over
     - Unknown
     - Partitioned, Transmit Idle

   The following properties display, depending on the operating environment:

   Storage Group—The storage group ID

   Local Volume—The local volume ID

   SRDF Group Number—SRDF group number

   Remote SRDF Group Number—Remote SRDF group number

   Remote Volume—The remote volume ID

   Pair State—The state of the SRDF pair

   SRDF Mode—The SRDF mode

   Adaptive Copy Mode—The adaptive copy mode

   Adaptive Copy Skew—The adaptive copy skew

   Consistency State—The consistency state

   Consistency Exempt—Indicates consistency exempt status.

   Link Status—Indicates link state.

   Link Domino —Indicates link Domino state.

   Local Volume Invalid R1 Track Count —Indicates Local Volume Invalid R1 Track Count.

   Local Volume Invalid R2 Track Count —Indicates Local Volume Invalid R2 Track Count.

   Local Volume SRDF State —Indicates SRDF state of the local volume.

   Local Volume SRDF Type—Indicates SRDF type of the local volume.

   Local Volume Remote Write Pacing Track Count—Indicates Local Volume Remote Write Pacing Track Count .

   Local Volume Track Size—Indicates track size of the local volume.

   Remote Local Volume Invalid R1 Track Count —Indicates Remote Volume Invalid R1 Track Count.

   Remote Volume Invalid R2 Track Count —Indicates Remote Volume Invalid R2 Track Count.

   Remote Volume SRDF State —Indicates SRDF state of the remote volume.

   Remote Volume Remote Write Pacing Track Count—Indicates Remote Volume Remote Write Pacing Track Count.

   Remote Volume Track Size—Indicates track size of the remote volume.

   SRDF/A Pacing capable—Indicates SRDF/A pacing capability.

   Configured Group Level Exempt State—Configured Group Level Exempt state indication

   Effective Group Level Exempt State—Effective Group Level Exempt state indication

   Volume Level Pacing State—Volume Level Pacing state indication

   SRDF/A Consistency Protection—SRDF/A Consistency Protection indication

   SRDF/A Average Cycle Time—SRDF/A Average Cycle Time

   SRDF/A Minimum Cycle Time—SRDF/A Minimum Cycle Time

   SRDF/A Cycle Number—SRDF/A Cycle Number

   SRDF/A Session Number—SRDF/A Session Number

   Transmit Queue Depth of R1 side—Transmit Queue Depth of R1 side.

   SRDF/A Uncommitted Tracks Count—SRDF/A Uncommitted Tracks count.

   SRDF/A Number of Volumes in Session—SRDF/A Number of Volumes in session

   SRDF/A Session Uncommitted Tracks Count—SRDF/A Session Uncommitted Tracks count.

   SRDF/A R1 DSE Used Track Count—SRDF/A R1 DSE Used Track count.

   SRDF/A R1 Cache In Use Percent—SRDF/A R1 Cache In Use Percent.

   SRDF/A R1 Shared Track Count—SRDF/A R1 Shared Track count.

   SRDF/A R1 to R2 Lag Time—SRDF/A R1 to R2 Lag Time

   SRDF/A R2 DSE Used Track Count—SRDF/A R2 DSE Used Track count.

   SRDF/A R2 Cache In Use Percent—SRDF/A R2 Cache In Use Percent.

   SRDF/A Session Minimum Cycle Time—SRDF/A Session Minimum Cycle time

   SRDF/A Transmit Idle State—SRDF/A Transmit Idle state.

   SRDF/A Transmit Idle Time—SRDF/A Transmit Idle time.

   Suspended State—Suspended state

   SQAR Mode—SQAR Mode status (enabled or disabled)

   There are also links to views displaying objects contained in and associated with the SRDF pair. There is a number after each link, indicating the number of objects in the corresponding view. For example, clicking the number next to SRDF Group Number opens a view listing the related SRDF groups.

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