Shulou(Shulou.com)05/31 Report--

This article introduces you how to analyze the AIX5.3 HACMP fault, the content is very detailed, interested friends can refer to, hope to be helpful to you.

Due to the need to replace the back-end storage accessories, stop the application of the AIX minicomputer, stop the NODE2 node first and then stop the NODE1 node in HACMP, everything is smooth. When the replacement parts are finished and the NODE1 needs to be restarted, an error is reported that it cannot be started, which is depressing for a while. After analysis, the fault is solved, and the specific process is as follows:

First, the failure phenomenon:

ERROR: Logical volume fslv01 not found for VG oravg on node node1.

ERROR: Filesystem / sapbackup on node node1 does not exist.

Starting Corrective Action: cl_resource_auto_reimport_vg.

Would you like to update VG: oravg timestamp on

Node (s): node1 for resource group: source1 [Yes / No]:

Shows that a fslv01 logical volume was not found and the SAPBACKUP directory does not exist on node 1. This really scared me, if really inexplicably lost a directory or volume, and then restore it will be troublesome.

Second, the analysis process:

1. Some engineers have suggested that the oravg volume should be forced offline and then activated by varyonvg, and then mount all. Although this is feasible to some extent, it is very risky. We know that abnormal termination of a volume sometimes causes the volume group (VG) to be locked and unable to mount any directories.

2. Contact the application group to determine whether this directory exists. After phone contact, it is confirmed that sapbackup is not in use and is deleted after it was established before. After carefully thinking about the principle of hacmp cluster, I decided to use node synchronous updates to solve this problem.

HACMP principle:

In a cluster, the integrity and consistency of the data is very important. HACMP will often strictly check the consistency and integrity of the data to ensure that the nodes in the cluster are normal.

Third, the specific operation process:

1. Start HACMP

# smitty hacmp

Select the second option, extended configuration enter.

Then select the first item, and then enter.

Then execute extended verification and synchronization to synchronize the node data, and finally solve the problem.

About how to carry on the AIX5.3 HACMP fault analysis to share here, I hope the above content can have some help to everyone, can learn more knowledge. If you think the article is good, you can share it for more people to see.

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