Dell Unity: Error: RPA X is Down or ERROR: In Cluster 0x42c525d9ccd582, SP cannot see RPA2

• No errors were reported on the Dell Unity UI (Unisphere). All connections are logged in and registered.
• Example of errors from the RecoverPoint UI (Unisphere):

ERROR: APM0000000000-A's connection to RPA 2 is Down
ERROR: APM0000000000-B's connection to RPA 2 is Down

ERROR: In Cluster 0x42c525d9ccd582, SP cannot see RPA2. Verify that SP can see all RPAs at the relevant cluster. ; Site_Name ; APM0000000000-A
ERROR: In Cluster 0x42c525d9ccd582, SP cannot see RPA2. Verify that SP can see all RPAs at the relevant cluster. ; Site_Name ; APM0000000000-B

• The Dell Unity EMCSystemLog (also known as splogs) shows the following alerts: 

"12b000f [INFO] System: SANCopy Disk Driver: Search failed : could not find or access FC Port xxxxxxxLUN xx : status = 7E11F013"
Error code 0x7e11f013 is EMCPAL_STATUS_NO_SUCH_DEVICE

RecoverPoint was configured to use the Native Synchronous Ports on the Dell Unity array. This is not a valid configuration when using RecoverPoint Appliance (RPA) with a Dell Unity array. 

Synchronous Replication Interfaces

Native synchronous block replication is performed over the first Fibre Channel (FC) port configured on the array. When configured as Fibre Channel, the lowest numbered port is used for synchronous replication interface.

With Unisphere CLI, you can locate the synchronous block replication port by running the '/remote/sys show -detail' command. This command returns information for the local system, along with all the systems that have replication connections configured. A sample output of this command with only the relevant information displayed is shown below.

17:32:54 service@UnityXT spa:~/user# uemcli /remote/sys show -detail
Storage system address: 127.0.0.1
Storage system port: 443
HTTPS connection

1:    ID                           = RS_0
      Name                         = UnityXT
      Address                      = 10.245.18.6
      Alternate Management Address =
      Model                        = Unity 480 (Local System)
      Serial number                = FNM00190200427
      Connection type              = async
      Source interfaces            = N/A
      Local interfaces             = N/A
      Remote interfaces            = N/A
      Operational status           = OK (0x2)
      Health state                 = OK (5)
      Health details               = "Communication with the replication host is established. No action is required."
      Synchronous FC ports         = spa_iom_0_fc0, spb_iom_0_fc0
      Bandwidth schedules          = uses available bandwidth
      Current bandwidth            = uses available bandwidth 

RecoverPoint with Dell Unity

When configuring RecoverPoint, LUNs and VMware vStorage VMFS datastores already replicated with Dell Unity native replication software are not supported. Also, RecoverPoint should not be configured to use the Dell Unity Synchronous Replication Port on either storage processor (SP).

When RecoverPoint is configured connecting to the Synchronous ports the Unity array, it shows that the connections appear to be connected and logged in, but RecoverPoint shows the Ports in a Down State.

ERROR: APM0000000000-A's connection to RPA 2 is Down
ERROR: APM0000000000-B's connection to RPA 2 is Down
ERROR: In Cluster 0x42c525d9ccd582, SP cannot see RPA2. Verify that SP can see all RPAs at the relevant cluster. ; Site_Name ; APM0000000000-A
ERROR: In Cluster 0x42c525d9ccd582, SP cannot see RPA2. Verify that SP can see all RPAs at the relevant cluster. ; Site_Name ; APM0000000000-B

To correct this, the ports must be moved to FC ports that are not set to Native Replication on the Unity array. The zoning must also be updated on the customer's Fibre Channel Network.