I have Informix DB installed in my Windows machine. When I issuing a command using "onstat -m", I got the following error. Do you guys have any idea what does it mean?

Here is the output
------------------
shared memory not initialized for INFORMIXSERVER 'ol_ids_1150_1'

Message Log File: C:\PROGRA~1\IBM\IBMINF~1\11.50\ol_ids_1150_1.log
Thread(7, main_loop(), 0, 1)
File: rspartn.c Line: 9431
15:08:29 Results: Chunk 1 is being taken OFFLINE.
15:08:29 Action: For all spaces other than temporary dbspaces, restore the space containing the chunk from the archive. If this chunk belongs to a temporary dbspace and if it is not the only chunk in that dbspace, then drop and re-create the chunk. Otherwise drop and re-create the temporary dbspace.
15:08:30 stack trace for pid 2388 written to C:\PROGRA~1\IBM\IBMINF~1\11.50\tmp
\af.3ef056c
15:08:40 See Also: C:\PROGRA~1\IBM\IBMINF~1\11.50\tmp\af.3ef056c
15:08:43 Releasing server from system block
15:08:49 chunk failed sanity check

15:08:51 chunk failed sanity check

15:08:51 I/O error, Primary Chunk 'C:\IFMXDATA\ol_ids_1150_1\rootdbs_dat.000' -
- Offline (sanity)
15:08:51 oninit: Fatal error in shared memory initialization

15:08:51 IBM Informix Dynamic Server Stopped.

-----------
Output End

THanks @!

That's not a memory error... It's an I/O error. Your primary chunk for rootdbs could not be accessed... Check permissions, file integrity, paths...
Regards