Errors in log file while creating shared memory

We brought Informix offline and when we tried to bring it online again, we were getting following error repeatedly 13:54:07 Could not create single shared memory segment with resident andnon-resident par titions. Proceeding to create 2 shared memory segments instead. 13:54:07 shmget: [ENOMEM][12]: key 52564801: out of shared memory, checksystem SHMALL 13:54:07 mt_shm_init: can't create resident segment Then we restarted Unix and everything was fine. We had not changed any of the Unix and Informix parameters. I have seen this thing happen before also. What is the reason? What is the meaning of this error : Could not create single shared memory segment with resident and non-resident partitions. Proceeding to create 2 shared memory segments instead. Does it ever create one segment for resident and virtual portions? We see this message everytime we bring Informix online. HP UX 10.20, Informix 7.24 UC4 Thanks in advance Vinod Bhansali ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

In article <8hroib$kgs$1@news.xmission.com>, Vinod Bhansali <iiug@hotmail.com> writes > >We brought Informix offline and when we tried to bring it online again, we >were getting following error repeatedly > >13:54:07 Could not create single shared memory segment with resident and>non-resident par >titions. Proceeding to create 2 shared memory segments instead. >13:54:07 shmget: [ENOMEM][12]: key 52564801: out of shared memory, check>system SHMALL >13:54:07 mt_shm_init: can't create resident segment> >Then we restarted Unix and everything was fine. We had not changed any of >the Unix and Informix parameters. > >I have seen this thing happen before also. What is the reason? > A kernel parameter to do with shared memory is too small. Or you have too little physical memory in the machine. >What is the meaning of this error : >Could not create single shared memory segment with resident and non-resident >partitions. Proceeding to create 2 shared memory segments instead. >Does it ever create one segment for resident and virtual portions? Yes on HP it does. This is for performance reasons. >We see this message everytime we bring Informix online. > >HP UX 10.20, Informix 7.24 UC4 > > >Thanks in advance >Vinod Bhansali >________________________________________________________________________ >Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com > -- David Williams