Cause: The remote server was unable to
start an ORACLE process on behalf of the client.
Action: Make sure permissions on the
remote ORACLE program are correctly set. Contact your system
administrator.

Relared Errors:
ORA-06420:
NETCMN: SID lookup failure
ORA-06421:
NETCMN: Error detected in the read-in data
ORA-06422:
NETCMN: Error in sending data
ORA-06423:
NETCMN: Error in receiving data
ORA-06430:
ssaio: Seals do not match
ORA-06431:
ssaio: Invalid Block number
ORA-06432:
ssaio: Buffer Not Aligned
ORA-06433:
ssaio: LSEEK error, unable to seek to requested block.
ORA-06434:
ssaio: read error, unable to read requested block from database
file.
ORA-06435:
ssaio: write error, unable to write requested block to database
file.