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тАО03-18-2002 12:06 AM
тАО03-18-2002 12:06 AM
I'm using Hp-UX B2000 with 9GB hardlisk. I've installed Oracle 8.1.7. The problem is that when I'm trying to bring up oracle using startup from svrmgrl prompt I'm getting the following error.
SVRMGR>startup
ORA-27102: out of memory
HP-UX Error: 12: Not enough space
Would be great if any one could give me the reason for this. Here are my kernel parameter values:
maxdsize - 3147483648
shmmax - 1073741824
swapmem_on - 1
I'm badly in need of this machine and would appreciate quick help from somebody.
Thanks in Advance
Regards
Siva
Solved! Go to Solution.
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тАО03-18-2002 12:16 AM
тАО03-18-2002 12:16 AM
Re: HP-UX Error 12
shmmax=1073741824 or 0X40000000
shmmni=100
shmseg=10
semmns=1000
semmni=100
NOTE: If you are installing the 64-bit version of Oracle, you must also increase the kernel parameter MAXDSIZ to 384M or higher in order to prevent an 'out of process memory' error during relinking.
If you have Metalink, you may want to check Doc ID: Note:108387.1.
Regards,
Joseph.
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тАО03-18-2002 12:26 AM
тАО03-18-2002 12:26 AM
Solutionedit init$ORACLE_SID.ora
Multiply:
db_block_size = 8192 by
db_block_buffers = 5000
and add
shared_pool_size = 40485760
8192*5000=40960000+40485760=81445760.
You SGA will be greater than 81445760.
shmmax must be greater that this value.
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тАО03-18-2002 12:33 AM
тАО03-18-2002 12:33 AM
Re: HP-UX Error 12
My db_block_size is 8192, db_block_buffers is 2048 and shared_pool_size is 157286400 and the final value is lesser than the value of shmmax. Anyway thanks for the information.
Regards
Siva
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тАО03-18-2002 12:47 AM
тАО03-18-2002 12:47 AM
Re: HP-UX Error 12
Do you want me to change shmmax or verify the value? The values of shmmni, shmseg, semmns and semmni were 200, 120, 250 and 256 respectively. I changed the value of semmns to 1000 and then rebuilt the kernel, but I got the same error ( no enough memory). Anyway thanks for the information.
Regards
Siva
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тАО03-18-2002 12:48 AM
тАО03-18-2002 12:48 AM
Re: HP-UX Error 12
Now run swapinfo -a and see reserved size, and swap utilization.
Is swap space size configured with at least physical memory size?
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тАО03-18-2002 12:49 AM
тАО03-18-2002 12:49 AM
Re: HP-UX Error 12
Check your swapspace and that you infact have enough free memory.
Try reducing the SGA size to a minimum.
Andreas
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тАО03-18-2002 01:00 AM
тАО03-18-2002 01:00 AM
Re: HP-UX Error 12
TYPE Kb Kb Kb PCT
Avail Used used Used
dev 1048576 0 1048576 0%
reserve - 202944 -202944
memory 381668 35840 345828
I'm not sure what I should I proceed with. Plse do give me some other additional information.
Thanks & Regards
Siva
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тАО03-18-2002 01:07 AM
тАО03-18-2002 01:07 AM
Re: HP-UX Error 12
SGA (in 32 bit shared memory) is mapped into a single addressing space where it is shared with memory mapped files, other shared memory segments and shared libraries. It is likely that there is no single segment free that is large enough for the SGA you are requesting. Try reducing your SGA to just a few hundred megs and run it again.
To see the fragmentation in your 32bit memory area, get a copy of shminfo:
ftp://contrib:9unsupp8@hprc.external.hp.com/sysadmin/programs/shminfo/
64bit programs do not have this limitation of a shared memory area. You may also want to look at memory windows to give Oracle a clean address space. Note that if your overall RAM is small (less than 4000 megs), paging (swapping) will severely impact the performance of Oracle in a busy environment. Be sure to read the 3 white papers in /usr/share/doc on mem_mt, proc_mgt and memory windows (may require patches to add memory windows to your version of HP-UX),
Bill Hassell, sysadmin
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тАО03-18-2002 03:20 AM
тАО03-18-2002 03:20 AM
Re: HP-UX Error 12
You wrote that the maxdsize is :
maxdsize - 3147483648 ???
Three Gigs for the max data size !!!
Are you sure you still have memory for the others :
. hp-ux
. Applications
. Tools
. Interactive users
How much physical memory and swap you have ???
Magdi