Last week the logger screen on one of our servers reported a single NSS
<COMM>-3.22 error. The error identified volume SYS:, user data I/O error
20204 then additional information identifying a specific file block.
Network services were not interrupted and no furhter error messages
appeared in the logger. This morning several identical NSS errors
appeared. Today's NSS error messages are identical in format but may
identify different file blocks. What is going on and what action is
required to address and resolve these NSS error notifications. The
environment is as follows: IBM serverw / raid 5, Netware 6.5 SP3.

Ken White