Data Corruption When Node Failure Causes the Cluster File System Primary to Die (4804964)

Problem Summary: Data corruption may occur with Sun Cluster 3.x systems running patches 113454-04, 113073-02 and 113276-02 (or a subset of these patches). The problem only occurs with globally mounted UFS file systems. The data corruption results in missing data (that is, you will see zero's where data should exist), and the amount of missing data is always a multiple of a disk block. The data loss can occur any time a node failure causes the cluster file system primary to die soon after the cluster file systemclient completes— or reports that it has just completed—a write operation. The period of vulnerability is limited and does not occur every time.

Workaround: Use the -o syncdir mount option to force UFS to use synchronous UFS log transactions.