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HUAWEI CLOUD Stack 6.5.0 Alarm and Event Reference 04

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ALM-6024 Management Storage Link or Authentication Failure

ALM-6024 Management Storage Link or Authentication Failure

Description

FusionSphere OpenStack periodically (default interval: 5 minutes) checks the management links between hosts and storage devices. This alarm is generated when any of the management links fails.

FusionSphere OpenStack authenticates a storage management username and password every two periods (default period: 10 minutes). This alarm is generated when the username and password are incorrect.

NOTE:

This alarm applies only to Huawei disk arrays.

Attribute

Alarm ID

Alarm Severity

Auto Clear

6024

Major

Yes

Parameters

Name

Meaning

Fault Location Info

host_id: specifies the ID of the host where the storage link is abnormal.

object: specifies the object for which the alarm is generated.

Additional Info

host_id: specifies the ID of the host where the storage link is abnormal.

hostname: specifies the name of the host where the storage link is abnormal.

Impact on the System

If the management link of a storage resource is faulty, services related to the storage resource are interrupted. If the username and password of a storage resource are incorrect, the storage resource is unavailable. If the disk array storage password expires, VMs become faulty and services are interrupted during the VM migration process.

Possible Causes

  • A network exception occurs.
  • The SAN device or the FusionStorage system is faulty.
  • The storage management username or password is incorrect.
  • The number of disk array sessions reaches the upper limit.
  • The interconnection account is locked.
    NOTE:

    FusionSphere OpenStack is interconnected with multiple storage pools of the backend storage using the same account. If the number of incorrect password attempts reaches the upper limit (three times by default) when FusionSphere OpenStack is interconnected with a storage pool, the account will be locked. As a result, this alarm is generated for all storage pools interconnected using this account. In this case, you only need to locate the storage pool whose interconnection password is incorrect and enter the correct password for interconnection again. Then, the alarm is automatically cleared. For details, see the alarm handling procedure.

Procedure

  1. Determine the alarm cause based on Alarm Object in Fault Location Info.

    • If Alarm Object in Fault Location Info indicates the device management IP address, the storage resource management link is disconnected. In this case, locate the possible causes.
      • If the storage resource management IP address is interrupted, perform 2 to rectify the fault.
      • If SAN or FusionStorage is faulty, perform 11 to rectify the fault.
    • If Alarm Object in Fault Location Info indicates the backend storage name, the backend storage connection authentication fails. In this case, locate the possible causes.
      • If the storage management username or password is incorrect or the disk array storage password has expired, perform 18 to rectify the fault.

  2. Log in to the FusionSphere OpenStack web client.

    For details, see Logging In to the FusionSphere OpenStack Web Client (ManageOne Mode).

  3. On the Summary page, obtain the management IP address of the host in the OM IP Address column based on the host ID or host name in the alarm additional information.
  4. Use PuTTY to log in to the host for which the alarm is generated using the management IP address of the host.

    The default user name is fsp. The default password is Huawei@CLOUD8.

    The system supports both password and public-private key pair for identity authentication. If the public-private key pair is used for login authentication, see detailed operations in Using PuTTY to Log In to a Node in Key Pair Authentication Mode.

  5. Run the following command and enter the password of user root to switch to user root:

    su - root

    The default password of user root is Huawei@CLOUD8!.

  6. Run the following command to disable user logout upon system timeout:

    TMOUT=0

  7. Run the following command to import environment variables:

    source set_env

    Information similar to the following is displayed:

      please choose environment variable which you want to import: 
      (1) openstack environment variable (keystone v3) 
      (2) cps environment variable 
      (3) openstack environment variable legacy (keystone v2) 
      (4) openstack environment variable of cloud_admin (keystone v3) 
      please choose:[1|2|3|4] 

  8. Enter 1 to enable Keystone V3 authentication and enter the password of OS_USERNAME as prompted.

    Default account format: DCname_admin; default password: FusionSphere123.

  9. Obtain the management IP address of the faulty storage resource from the object ID field. Run the following command to check whether the management IP address of the faulty storage resource can be pinged:

    • If the management IP address of the faulty storage resource is an IPv4 address, run the following command:

      ping Management IP address of the faulty storage resource

    • If the management IP address of the faulty storage resource is an IPv6 address, run the following command:

      ping6 Management IP address of the faulty storage resource

    NOTE:

    If the system is interconnected with Huawei V3 storage or later, run the curl command to check whether REST URLs are normal.

    • If the management IP address of the faulty storage resource is an IPv4 address, run the following command:

      curl -i -k https://Management IP address of the faulty storage resource:8088/deviceManager/rest

    • If the management IP address of the faulty storage resource is an IPv6 address, run the following command:

      curl -g -i -k https://[Management IP address of the faulty storage resource]:8088/deviceManager/rest

    • If yes, go to 11.
    • If no, go to 10.

  10. Contact the O&M personnel to recover the network. After 4 to 5 minutes, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 11.

  11. Check the backend storage type (SAN or FusionStorage).

    • If the storage type is SAN, go to 12.
    • If the storage type is FusionStorage, go to 15.

  12. If the password for logging in to the disk array has been changed, handle the issue based on "Changing the Password for Connecting to a Storage Device" in "Account List" in the HUAWEI CLOUD Stack 6.5.0 Security Management Guide.

    • If the alarm is cleared, no further action is required.
    • If the alarm is not cleared, go to 13.

  13. Check whether the SAN status is normal by referring to the SAN device product documentation. You can obtain the SAN device product documentation of the target version at https://support.huawei.com/enterprise/.

    • If yes, go to 14.
    • If no, go to 17.

  14. Contact the O&M personnel to restore the faulty SAN devices and then check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 17.

  15. Run the following command to check whether VMs FusionStorageManager_1_primary and FusionStorageManager_1_slave are in the ACTIVE state:

    nova show VM name

    VM name indicates FusionStorageManager_1_primary or FusionStorageManager_1_slave.

    • If yes, go to 17.
    • If no, go to 16.

  16. Contact O&M personnel to restore the FusionStorage management VM. You can obtain the product documentation of the target FusionStorage version at https://support.huawei.com/enterprise/ and restore the VM based on "A Single FSM VM Fails (Deployed on a FusionSphere OpenStack Host)." After the FusionStorage management VMs are in the ACTIVE state, check whether the alarm is cleared.

    • If yes, no further action is required.
    • If no, go to 17.

  17. Contact technical support for assistance.
  18. Update the storage password of the disk array. For details, see "Changing the Password for Connecting to a Storage Device" in "Account List" in HUAWEI CLOUD Stack 6.5.0 Security Management Guide. Check whether there are VMs that fail to be migrated due to this alarm.

    • If yes, run the nova migrate VM_ID command to perform a cold migration on the VM.
    • If no, no further action is required.

Related Information

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Updated: 2019-08-30

Document ID: EDOC1100062365

Views: 35440

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