These error messages reflect failures to find, open, or access a database file. Examine any secondary error messages to obtain additional information about the problem.
Use printenv to check gtmgbldir or use the M command WRITE $ZGBLDIR to verify that the "pointer" identifies the proper Global Directory. If the pointer is not appropriate, reset gtmgbldir or use the M command SET $ZGBLDIR= to name the proper file.
Examine the Global Directory using GDE. If the Global Directory is not appropriate, correct or recreate it with GDE. For more information on the use of GDE, refer to the "Global Directory Editor" chapter.
IF THE GLOBAL DIRECTORY IS DAMAGED BUT ACCESSIBLE WITH GDE, investigate who may have used GDE to perform the modifications. If the Global Directory is damaged and not accessible with GDE, investigate what program, other than GT.M and its utilities, might have written to the file. Except for GDE, all GT.M components treat the Global Directory as static and read-only.
IF THE GLOBAL DIRECTORY APPEARS CORRECT, use the DCL command SHOW LOGICAL to verify that any logical names it uses are properly defined for the process experiencing the problem. If the process has an environment to which you do not have access, you may have to carefully read the command procedures used to establish that environment.
IF THE GLOBAL DIRECTORY APPEARS CORRECT, use printenv to verify that any environment variables that it uses are properly defined for the process experiencing the problem. If the process has an environment to which you do not have access, you may have to carefully read the shell scripts used to establish that environment.
IF THE ENVIRONMENT VARIABLES APPEAR CORRECT, use the ls -l to examine the file protection. Remember to examine not only the file, but also all directories accessed in locating the file.
IF THE FILES APPEAR TO BE PROPERLY MAPPED by the Global Directory, correctly placed given all logical names, and correctly protected to permit appropriate access, use one of the DCL commands TYPE or DUMP to verify access to the files, independent of GT.M.
IF THE FILES APPEAR TO BE PROPERLY MAPPED by the Global Directory, properly placed given all environment variables, and properly protected to permit appropriate access, use the od or cat utility to verify access to the files, independent of GT.M.
IF YOU SUSPECT A VERSION MISMATCH PROBLEM, refer to section I2.
IF YOU SUSPECT A DISK HARDWARE PROBLEM, refer to section H7.