View SRDF volume pairs
Symmetrix Remote Data Facility (SRDF) facilitates the data replication from one storage array to another through a storage area network or Internet Protocol (IP) network.
About this task
This procedure explains how to view and manage the volume pairs in an SRDF group.
Steps
-
Select a device group from the list and click
to open the SRDF Pair List view.
The following properties display:
Show Group Details:
The following device group properties are displayed:
Group Valid—Indicates if the device group is valid or invalid for SRDF management.
Application ID—Application name managing SRDF actions.
Vendor ID—Vendor name
Group Creation Time—Group creation timestamp
Group Modify Time—Group modification timestamp
Remote Array—Remote storage system ID
Volume Pacing Exempt State—Indicates if volume pacing exempt is enabled.
Write Pacing Exempt State—Indicates if write pacing exempt is enabled.
Effective Write Pacing Exempt State—Indicates if effective write pacing exempt is enabled.
Local tab:
The following local SRDF link properties are displayed:
Source Volume—Source volume ID
Source LDev—Source logical volume ID
Group—SRDF group ID
Remote Array—Remote storage system ID
Target Volume—Target volume ID
State—State of the SRDF volume pairs.
Volume State—State of the source volume.
Remote Volume State—State of the remote volume.
SRDF Mode—SRDF copy type
Local R1 Invalid—Number of invalid R1 tracks on the source volume.
Local R2 Invalid—Number of invalid R2 tracks on the source volume.
Remote R1 Invalid—Number of invalid R1 tracks on the target volume.
Remote R2 Invalid—Number of invalid R2 tracks on the target volume.
Hop2 tab:
The following remote SRDF link properties are displayed:
Source LDev—Source logical volume ID
Concurrent Volume—Concurrent volume ID
SRDF Group—SRDF group ID
Remote Array—Remote storage system ID
Target Volume—Target volume ID
State—State of the SRDF volume pairs.
Volume State—State of the source volume.
Remote Volume State—State of the remote volume.
The following controls are available:
—View SRDF volume pair details
Establish— Establish SRDF pairs
Split— Split SRDF pairs
Suspend— Suspend SRDF pairs
Restore— Restore SRDF pairs
Resume— Resume SRDF links
Failover— Failover
Failback— Failback
Set SRDF/A— Set SRDF/A controls to prevent cache overflow
Invalidate— Invalidate R1 or R2 volumes
Ready— Make R1 or R2 volumes ready
Not Ready— Make R1 or R2 volumes not ready
R1 Update— Update R1 volumes
RW Enable— Read or Write Enable R1 or R2 Volumes
Write Disable— Read or Write disable R1 or R2 volumes
RW Disable R2— Read or Write disable R2 volumes
Refresh— Refresh R1 or R2 volumes
Set Mode— Set SRDF mode