PRIMECLUSTER Global File Services Configuration and Administration Guide 4.2 (Solaris(TM) Operating Environment)

12.3.3 Area reassignment in case of disk block failure

The GFS Shared File System automatically assigns another disk block to a new meta-data area if a disk block hardware failure occurs.

Reassignment of the disk block allows continuous file system processing if a disk failure occurs only on a specific block.

This function only suppresses use of a block where an I/O error has occurred. If a request to use the same block is issued, however, an I/O error may occur again. In the case of an I/O error, the error must be corrected because the response time for that request increases. If a block reassignment occurs as a result of an I/O error, backup the file system, correct the hardware failure by replacing the failed disk with a new one, and restore the data to recover the file system.