Increasing user limit

PROBLEM ------- We are hitting the number of users limit with Informix OnLine. We have increased the relevant shared memory parameters as directed by the Administrators manual. When Informix is shut down and restarted so that the new values take effect "tbinit" fails to start up with the following error :- tbinit:shmat[EINVAL][22]:shared memory base address illegal using 0x80500000 needs 0x80800000 tbinit:fatal error in shared memory creation. The shared memory base address specified in the TBCONFIG file as recommended for our machine is as follows :- SHMBASE 0x80400000 # Shared memory base address From what I understand this base address should not be altered. Further details follow :- UNIX VERSION ------------ SCO UNIX System V/386 Release 3.2v4.1 PROCESSOR --------- i80486 INFORMIX VERSIONS ----------------- Copyright (C) 1984-1991 Informix Software, Inc. INFORMIX-OnLine Version 4.10.UG1 UNIX KERNEL SHARED MEMORY PARAMETERS ------------------------------------ * * IPC Semaphores * 10 entries in semaphore map (SEMMAP) 10 semaphore identifiers (SEMMNI) 60 semaphores in system (SEMMNS) 30 undo structures in system (SEMMNU) 25 max semaphores per id (SEMMSL) 10 max operations per semop call (SEMOPM) 10 max undo entries per process (SEMUME) 32767 semaphore maximum value (SEMVMX) 16384 adjust on exit max value (SEMAEM) * * IPC Shared Memory * 1048576 max shared memory segment size (SHMMAX) 1 min shared memory segment size (SHMMIN) 100 shared memory identifiers (SHMMNI) 6 max attached shm segments per process (SHMSEG) 512 max in use shared memory (SHMALL) (4k clicks) ORIGINAL SHARED MEMORY PARAMETERS (Before modification) ------------------------------------------------------- SHARED MEMORY PARAMETERS Page Size [ 2] Kbytes Server Number [ 0] Server Name [white ] Deadlock Timeout [ 60] Seconds Forced Residency [N] Number of Page Cleaners [ 2] Physical Log Buffer Size [ 32] Kbytes Logical Log Buffer Size [ 32] Kbytes Max # of Logical Logs [ 4] Max # of Users [ 32] Max # of Locks [ 3500] Max # of Buffers [ 200] Max # of Chunks [ 8] Max # of Open Tblspaces [ 320] Max # of Dbspaces [ 8] ============ Shared memory size [ 848] Kbytes MODIFIED SHARED MEMORY PARAMETERS --------------------------------- SHARED MEMORY PARAMETERS Page Size [ 2] Kbytes Server Number [ 0] Server Name [white ] Deadlock Timeout [ 60] Seconds Forced Residency [N] Number of Page Cleaners [ 2] Physical Log Buffer Size [ 32] Kbytes Logical Log Buffer Size [ 32] Kbytes Max # of Logical Logs [ 4] Max # of Users [ 64] Max # of Locks [ 3500] Max # of Buffers [ 256] ( 4 * Users ) Max # of Chunks [ 8] Max # of Open Tblspaces [ 640] ( 10 * Users ) Max # of Dbspaces [ 8] ============ Shared memory size [ 1072] Kbytes Any help regarding this problem would be much appreciated. Why are things never as easy as the manual suggests :-) -- ---------------------------------------------------------------------------- Tony Desborough SRL Data Ltd Software Programmer 1, Perren St Email: tony@bilpin.co.uk LONDON, NW5 3ED