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тАО07-18-2006 09:41 PM
тАО07-18-2006 09:41 PM
Need help with kernel parameters to install oracle 10g
We intend to install oracle 10g database on hpux l2000.We have only 2GB RAM.
Please help me tuning the kernel parameters:
If anyone can give the suggested kernel parameters.
cheers,
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тАО07-18-2006 09:46 PM
тАО07-18-2006 09:46 PM
Re: Need help with kernel parameters to install oracle 10g
lots of prvious threads:
http://forums1.itrc.hp.com/service/forums/questionanswer.do?threadId=1037434
and
http://forums1.itrc.hp.com/service/forums/bizsupport/questionanswer.do?threadId=1043965
Best place to start is with the parameter chnages as specified in Oracle Install Guide and then slowly adapt to your application.
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тАО07-18-2006 10:16 PM
тАО07-18-2006 10:16 PM
Re: Need help with kernel parameters to install oracle 10g
I would be very glad if you give me feedback on this.
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тАО07-18-2006 10:22 PM
тАО07-18-2006 10:22 PM
Re: Need help with kernel parameters to install oracle 10g
I have a 10g instance running on an L1000 with 512Mb, so the default values will certainly work on your machine.
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тАО07-18-2006 10:51 PM
тАО07-18-2006 10:51 PM
Re: Need help with kernel parameters to install oracle 10g
I am planning to Run SPECjAppServer2004 benchmark, So the load will be high, and I am living with only 2GB RAM and 8GB swap memory.
I have hpux with hardware model: 9000/800/L2000-44.
The following are the parameters that I found can be set!please look at this once.
bufpages 0
create_fastlinks 1
dbc_max_pct 10
dbc_min_pct 10
default_disk_ir 1
fs_async 1
maxuprc (NPROC*9/10)
maxvgs 10
msgmap msgtql+2
msgtql nproc
msgmnb 65535
msgmax 32768
msgseg 32767
msgssz 32
nbuf 0
nswapdev 10
nproc 4200
nkthread ((nproc*2)+16) or 8416
npty 60
nstrpty 60
ncsize (ninode+1024)
nfile (15*nproc+2048)
nflocks (nproc)
ninode (8*nproc+2048)
o_sync_is_o_dsync 1
STRMSGSZ 65535
semmni (nproc)
semmns (semmni*2)
semmnu (nproc-4)
semvmx 32767
shmmax The size of physical memory
shmmni 512
shmseg 120
cheers,
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тАО07-19-2006 12:55 AM
тАО07-19-2006 12:55 AM
Re: Need help with kernel parameters to install oracle 10g
a copy of the parameters:
acctresume 4
acctsuspend 2
allocate_fs_swapmap 0
bufpages 6553
create_fastlinks 0
dbc_max_pct 50
dbc_min_pct 5
default_disk_ir 0
dskless_node 0
eisa_io_estimate 768
eqmemsize 17
file_pad 10
fs_async 0
hpux_aes_override 0
maxdsiz 262144
maxdsiz_64bit 524288
maxfiles 60
maxfiles_lim 1024
maxssiz 32768
maxssiz_64bit 262144
maxswapchunks 16384
maxtsiz 16384
maxtsiz_64bit 262144
maxuprc 3686
maxvgs 10
msgmap 4095
nbuf 7650
ncallout 7200
ncdnode 150
ndilbuffers 30
netisr_priority -1
netmemmax 0
nfile 7032
nflocks 4096
ninode 4296
no_lvm_disks 0
nproc 4096
npty 60
nstrpty 60
nswapdev 10
nswapfs 10
public_shlibs 1
remote_nfs_swap 0
rtsched_numpri 32
sema 0
semmap 4095
shmem 0
shmmni 512
streampipes 0
swapmem_on 1
swchunk 2048
timeslice 10
unlockable_mem 16584
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тАО07-19-2006 12:58 AM
тАО07-19-2006 12:58 AM
Re: Need help with kernel parameters to install oracle 10g
Critical issues:
dbc_max_pct
dbc_min_pct
Set them low, set them equal or very close numbers.
Reasoning:
1) This effects system buffer. The memory is more effecive if allocated to the SGA
2) If the system frequently changes the buffer amount with a wide min/max range it is very bad for system performance.
I use 7/5 or 5/3 on most entry level systems.
You are on the low end range of memory for effectively running Oracle.
SEP
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