20101   zERR HARD READ ERROR

Source:  NSS, Common Layer, General File System

Explanation:  A read error occurred when an attempt was made to read from media.

Possible Cause:  Disk controller failure.

Action:  Reset the hardware and try again.

Possible Cause:  A disk media failure occurred when NSS was trying to read a sector that has gone bad on the disk.

Action:  Find out what file is affected and try to work around it. Or, restore the data from a backup.