memory problem with Sybase after ios upgrade

[ernest tamura]

I recently installed hpux 11.0 on a K370 server. The server previously ran 10.20. We are running Sybase 11.92. When Sybase starts up now an error appears:

kernel Locking shared memory into physical memory.
kernel os_create_region: can't allocate 777211904 bytes.
kernel kbcreate: couldn't create kernel region.
kernel kistartup: could not create share.

unlockable memory set to 0.

Any ideas???

[pap]

Hi,

1.You can try to install all the required patches on HP-UX using custom patch manager.

2. try to set the parammeter maxdziz to max value that is
0x7b03A000 (2 GB)

Hope this helps ,

-pap

[steven Burgess_2]

Hi ernest

Check glance to see memory usage

swapinfo -tam to check swapinfo

Have a look at the following link regarding unlockable_mem parameter

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0xc6fb5e938a10d6118ff40090279cd0f9,00.html

Also

Whats your buffer cache set to

sysdef | grep nbuf
sysdef | grep bufpages

You can allow the system to use dynamic buffer caching by setting them both to 0 then manage them through the settings

dbc_min_pct
dbc_max_pct

general advise is to set them to 5 and 15

This will be a percentage value of your systems memory

Also have a look at the following regarding other tunable parameters


http://docs.hp.com/hpux/onlinedocs/os/KCparams.OverviewAll.html

Regards

Steve

[Guido Schneider]

Hi ernest,
it seems that your configured shared memory
shmmax is to small and sybase is not able to allocate the total memory configured in SERVERNAME.cfg

guiz