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HUAWEI CLOUD Stack 6.5.0 Alarm and Event Reference 04

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ALM-6023 Host Storage Link Failure

ALM-6023 Host Storage Link Failure

Description

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

NOTE:

This alarm applies only to Huawei disk arrays.

Attribute

Alarm ID

Alarm Severity

Auto Clear

6023

Major

Yes

Parameters

Name

Meaning

Fault Location Info

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

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.

abnormal_ips: specifies the IP address of the faulty storage link.

Impact on the System

If some storage links on a host fail, the reliability and performance of VM services may deteriorate. If all the storage links on a host fail, VM services on the host are interrupted.

Possible Causes

The network between the host and the IP SAN devices is faulty.

Procedure

  1. Log in to the FusionSphere OpenStack web client.

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

  2. 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.
  3. 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.

  4. 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!.

  1. Obtain the IP address of the faulty storage link in Additional Information and ping this IP address on the host to check whether the network is faulty.

    • If yes, go to 6.
    • If no, go to 7.

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

    • If yes, locate the VMs that have virtual disks attached or boot from virtual disks on the node for which the alarm is generated, hard reboot the VMs, and quickly log in to the VM using VNC. On Service OM, choose Computing > ECS > Compute Instances. On the displayed page, locate the row that contains the VM and choose More > Force Restart. If the VM is successfully restarted, no further action is required.
    • If no, go to 7.

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

    • If yes, go to 8.
    • If no, go to 9.

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

    • If yes, locate the VMs that have virtual disks attached or boot from virtual disks on the node for which the alarm is generated, hard reboot the VMs, and quickly log in to the VM using VNC. On Service OM, choose Computing > ECS > Compute Instances. On the displayed page, locate the row that contains the VM and choose More > Force Restart. If the VM is successfully restarted, no further action is required.
    • If no, go to 9.

  5. Contact technical support for assistance.

Related Information

None

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Updated: 2019-08-30

Document ID: EDOC1100062365

Views: 36036

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