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# View SRDF group details

SRDF groups provide a collective data transfer path linking volumes of two separate storage systems.

## About this task

To view SRDF group details:

## Steps

1. Select the storage system.
2. Select DATA PROTECTION > SRDF Groups to open the SRDF groups list view.
3. Select the SRDF group and click to open its Details view.

   The properties that are listed depend on the specifics of the storage system. Some or all the following properties display:

   SRDF Group Number—SRDF group number.

   SRDF Group Label—SRDF group label.

   SRDF Group Volumes—SRDF group volumes.

   Director Identity —Director identifiers.

   Remote SRDF Group —Remote group numbers.

   Remote Array ID—Remote storage system serial IDs.

   Remote Director Identity—Remote director identifiers.

   SRDF Modes—SRDF Modes. Possible values are: N/A, Adaptive Copy, Synchronous, Asynchronous, Active, and Metro.

   SRDF Group Type—SRDF group type

   MetroDR Group—Indication if the group is a MetroDR group.

   SRDF/Metro—Indication if the group is a SRDF/Metro group.

   Copy Jobs—Maximum number of SRDF copy jobs per SRDF group.

   Link Domino—Sets the domino mode for the source (R1) volumes.

   Link Config—Link configuration.

   Director Config—Indicates the Fibre adapter type.

   Link Limbo (sec)—Number of seconds (0-10) for the storage system to continue checking the local SRDF link status.

   Minimum Cycle Time—Minimum cycle time (seconds) configured for this session.

   Session Priority—Session priority.

   Duration of last transmit cycle—Duration of the last transmit cycle.

   Transmit Queue Depth on R1 side—Depth of the transmit queue on the source side.

   Transmit Idle Time—Time the transmit cycle has been idle.

   Transmit Idle Enabled—Whether SRDF/A Transmit Idle state is active for the SRDF group.

   R2 Side Percent Cache in Use —Percent of system write pending cache slots used by the R2 side.

   Dynamic Cache Partition Name—Cache partition name.

   SRDF/A Mode—The SRDF/A mode. The status of the property can be Single-session, MSC, or N/A.

   MSC Cleanup Required—Indicates if MSC cleanup is required. The status of the property can be Yes, No, or N/A.

   SRDF/A Session Status—The SRDF/A session status. The status of the property can be Active, Inactive, or N/A.

   SRDF/A Consistency Protection—Indicates if consistency protection is enabled. The status of the property can be Enabled, Disabled, or N/A.

   SRDF/Metro Witness Degraded—SRDF/Metro Witness Degraded. Possible values are: Yes or No.

   SRDF/A Write Pacing Status—Indicates if SRDF/A write pacing is active (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   SRDF/A Write Pacing Delay—Max delay allowed for host I/O in seconds (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   SRDF/A Write Pacing Threshold—Minimum cache percentage when host write pacing starts (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   Group Pacing Auto Start—Indicates if group pacing auto start is enabled or disabled on the SRDF group (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   Device Pacing Supported—Indicates if SRDF/A device pacing is supported (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   Group Level Pacing State—Indicates if group level write pacing is enabled or disabled (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   Device Pacing Activated—Group-level pacing status of the SRDF/A session. The status of the feature can be Active, Inactive, N/A (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   Group Pacing Auto Start—Indicates if group pacing auto start is enabled or disabled on the SRDF group (applies to storage systems running HYPERMAX OS 5977 or PowerMaxOS 5978).

   SRDF Single Round Trip —Indicates if single round trip is enabled or disabled on the SRDF group.

   SRDF Software Compression—Indicates if software compression is enabled or disabled on the SRDF group.

   SRDF Hardware Compression—Indicates if hardware compression is enabled or disabled on the SRDF group.

   SRDF Software Compression Support—Indicates if SRDF software compression is enabled or disabled.

   SRDF Hardware Compression Support—Indicates if SRDF hardware compression is supported on the storage system.

   Star Mode—Indicates if SRDF group is in a star configuration.

   SQAR Mode—Indicates if SRDF group is in a SQAR configuration.

   Links are also provided to views for objects that are contained in and associated with the SRDF group. Each link has a number next to it, indicating the number of objects in the corresponding view. For example, clicking the number next to SRDF Group Volumes opens a view listing the volumes that are contained in the SRDF group.