IBM System Storage DS3000, Programming Manual

Page: 367 / 652

Minimum Firmware Level
7.84
Test Enhanced Global Mirror Group connectivity
This command tests possible communication problems between the local storage subsystem and the
remote the storage subsystem associated with an Enhanced Global Mirror Group.
Syntax
diagnose enhancedGlobalMirrorGroup ["enhancedGlobalMirrorGroupName"]
testID=(all | connectivity | latency | bandwidth |
portConnections)
Parameters
Parameter Description
enhancedGlobalMirrorGroup The name of an existing Enhanced Global Mirror Group
that you want to test. Enclose the Enhanced Global
Mirror Group name in square brackets ([ ]). If the
Enhanced Global Mirror Group name has special
characters, you also must enclose the Enhanced Global
Mirror Group name in double quotation marks (" ").
testID
The identifier for the diagnostic test you want to run.
The identifier and corresponding tests are as follow:
v
All— Performs all the tests associated with this
command .
v Connectivity — Verifies that the two controllers have a
communication path. The connectivity test sends an
inter-controller message between the storage
subsystems, and then validates that the corresponding
Enhanced Global Mirror Group on the remote storage
subsystem exists. It also validates that the volume
members of the Enhanced Global Mirror Group on the
remote system match the volume members of the
Enhanced Global Mirror Group on the local system.
v
Latency — Sends a SCSI test unit command to each
volume on the remote storage subsystem associated
with the Enhanced Global Mirror Group to test the
minimum, average, and maximum latency.
v Bandwidth — Sends two inter-controller messages to
the remote storage subsystem to test the minimum,
average, and maximum bandwidth as well as the
negotiated link speed of the port on the controller
performing the test.
v Port connections — Shows the port that is being used
for mirroring on the local storage subsystem and the
port that is receiving the mirrored data on the remote
storage subsystem.
Minimum Firmware Level
7.84
Chapter 3. Script Commands
3-321