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

G.2.1 Action for I/O errors

G.2.1.1 If message "sfcfs...:read error" or "sfcfs...:write error" is output

The "sfcfs...:read error" message indicates that an I/O error occurred while file system data was being read from a disk. The "sfcfs...:write error" message indicates that an I/O error occurred while file system data was being written to a disk.

If the messages are displayed, recovery processing is required because an I/O path or device is faulty.

Perform the recovery processing using the following procedure:

1. Locate the file system and partition in which the error occurred.

To do so, enter the GFS Shared File System management command sfcinfo(1M) using the device number in the error message as key.

# sfcinfo -d device-number

2. If an sfcfs...:write error occurs

This error indicates that file system information updated in memory cannot be reflected on the disk. If this happens, files in the file system should be backed up before unmounting to prevent the updated information from being lost by unmounting.

3. Stop the file system service in which the error occurred.

Stop the file system service.

4. Correct the file system in which the error occurred.

Make a copy of the file system data in the partition where the error occurred, replace the partition, then use fsck_sfcfs(1M) to restore the consistency of the file system. Issue fsck_sfcfs(1M) while specifying to perform a full check.

# fsck -F sfcfs -o nolog special-device-name

5. If the file system in which the error occurred cannot be corrected

If the file system cannot be corrected with step 4, replace the faulty part, re-create the file system, and restore the backed up data.