https://community.hpe.com/t5/operating-system-hp-ux/shared-memory-and-sybase-ase/m-p/2538573#M915752 It seems after shut down of one ASE the processes are unable to get killed and not releasing shared memory.<BR />Try,<BR /><BR />1) Increase shared memory(shmmax) to max value.<BR /><BR />2) Shutdown ASE<BR /><BR />3) Run command:<BR /> #ipcs -ma<BR /> on UNIX box take the shmid for corresponding ASE UNIX process from above cmd output.<BR /><BR /><BR />4) Then run:<BR /> #ipcrm <SHMID><BR /> which clears the shared memory defunc process of sybase ASE.<BR /><BR />5) Then bring up servers.</SHMID> Sun, 10 Jun 2001 09:29:23 GMT Satish Y 2001-06-10T09:29:23Z https://community.hpe.com/t5/operating-system-hp-ux/shared-memory-and-sybase-ase/m-p/2538572#M915751 We are trying to bring up 2 instances of Sybase ASE 11.9.2 on HPUX 11.x The kernal parameters are set as follows:<BR /><BR />shmmax 3000000000<BR />shmmni 512<BR />shmseg 512<BR /><BR />We can allocate 1 GB of memory to each instance individually, but get a memory unavailable error when we try to bring them up simultaneously.<BR /><BR /> Sat, 09 Jun 2001 13:59:56 GMT https://community.hpe.com/t5/operating-system-hp-ux/shared-memory-and-sybase-ase/m-p/2538572#M915751 Chris Busch 2001-06-09T13:59:56Z https://community.hpe.com/t5/operating-system-hp-ux/shared-memory-and-sybase-ase/m-p/2538573#M915752 It seems after shut down of one ASE the processes are unable to get killed and not releasing shared memory.<BR />Try,<BR /><BR />1) Increase shared memory(shmmax) to max value.<BR /><BR />2) Shutdown ASE<BR /><BR />3) Run command:<BR /> #ipcs -ma<BR /> on UNIX box take the shmid for corresponding ASE UNIX process from above cmd output.<BR /><BR /><BR />4) Then run:<BR /> #ipcrm <SHMID><BR /> which clears the shared memory defunc process of sybase ASE.<BR /><BR />5) Then bring up servers.</SHMID> Sun, 10 Jun 2001 09:29:23 GMT https://community.hpe.com/t5/operating-system-hp-ux/shared-memory-and-sybase-ase/m-p/2538573#M915752 Satish Y 2001-06-10T09:29:23Z