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Dell PowerVault MD 32XX/36XX Series Storage Arrays CLI Guide

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Test Remote Replication Group Connectivity

Description

This command tests possible communication problems between the local storage array and the remote the storage array associated with a remote replication group.

Syntax

diagnose  asyncRemoteReplicationGroup ["
                                 asyncRemoteReplicationGroupName"]
                                 testID=(all | connectivity | latency | bandwidth | portConnections)

Parameters

Parameter Description
asyncRemoteReplicationGroup The name of an existing remote replication group that you want to test. Enclose the remote replication group name in square brackets ([ ]). If the remote replication group name has special characters, you also must enclose the remote replication group name in double quotation marks (" ").
testID The identifier for the diagnostic test you want to run. The identifier and corresponding tests are as follows:
  • All—Performs all the tests associated with this command.
  • Connectivity—Verifies that the two RAID controller modules have a communication path. The connectivity test sends an inter-RAID controller module message between the storage arrays, and then validates that the corresponding remote replication group on the remote storage array exists. It also validates that the virtual disk members of the remote replication group on the remote system match the virtual disk members of the remote replication group on the local system.
  • Latency—Sends a SCSI test unit command to each virtual disk on the remote storage array associated with the remote replication group to test the minimum, average, and maximum latency.
  • Bandwidth—Sends two inter-RAID controller module messages to the remote storage array to test the minimum, average, and maximum bandwidth as well as the negotiated link speed of the port on the RAID controller module performing the test.
  • Port connections—Shows the port that is being used for replicating on the local storage array and the port that is receiving the replicated data on the remote storage array.

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