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ATTO bridge unreachable alert although monitored via in-band

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Applies to

  • Fabric MetroCluster
  • ATTO 7600N FibreBridge monitored via in-band
  • ATTO 7500N FibreBridge monitored via in-band

Issue

  • Health monitor alert is seen in event logs:

[Node-01: schmd: hm.alert.raised:alert]: Alert Id = StorageBridgeUnreachable_Alert , Alerting Resource = 20000010XXXXXX0 raised by monitor system-connect
[Node-01: mgwd: callhome.hm.alert.major:alert]: Call home for Health Monitor process schm: StorageBridgeUnreachable_Alert[20000010XXXXXX0].

  • System health alert shows device is not monitored via the management network despite inband monitoring:

Cluster-02::> system health alert show

           Node: Node-01
           Resource: ATTO_20000010XXXXXX0
           Severity: Major
    Indication Time: Mon May 16 00:40:52 2022
           Suppress: false
        Acknowledge: false
     Probable Cause: "ATTO_20000010XXXXXX0" bridge is not reachable over management network.
    Possible Effect: Bridge "ATTO_20000010XXXXXX0" cannot be monitored for alerts.
Corrective Actions: 1) If the bridge is monitored by SNMP, verify that the node management LIF is up by using the                            "network interface show" command. Verify that the "ATTO_20000010XXXXXX0" bridge is alive by using                        the "network ping" command.
                    2) If the bridge is monitored in-band, check the fabric cabling to the bridge, and then verify that                      the bridge is powered up.

  • Bridge monitor status is seen as an "error":

Cluster-02::> storage bridge show
                                       Is        Monitor Managed                                               Is Bridge
Bridge                   Symbolic Name Monitored Status  By      Vendor Model                 Bridge WWN       Secure
------------------------ ------------- --------- ------- ------- ------ --------------------- ---------------- --------
ATTO_20000010XXXXXX0     BRIDGE1       true      error   -       Atto   FibreBridge 7600N     20000010xxxxxxxx false

  • The ATTO bridge is accessible from one cluster, but it is inaccessible from the other cluster

Cluster-01::> storage bridge run-cli -name ATTO_20000010XXXXXX0 -command "info"
[Job 17079] Job is queued: Executing ATTO CLI command "info" on bridge "ATTO_20000010XXXXXX0"..
Device Status         = Good
Unsaved Changes       = None
Device                = "FibreBridge 7600N"
.....

Ready.

[Job 17079] Job succeeded.

Cluster-02::> storage bridge run-cli -name ATTO_20000010XXXXXX0 -command "info"
[Job 18764] Job succeeded: Bridge is currently unavailable. Wait a few minutes and then try the operation again.

 

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