Which state (IN ? or OUT ?) Should be choosed for async i/o.

[noh019]

hi..

1>
##############################################
we are using HP 11.11 pa-risc oracle9205-64bit with raw device.
we will configure async i/o.

[1] Create /dev/async character device
# /sbin/mknod /dev/async c 101 0x000000
# chown oracle:dba /dev/async
# chmod 660 /dev/async

[2] Configure the async driver in the kernel
Using SAM -> Kernel Configuration -> Drivers -> the driver is called 'asyncdsk'
Generate new kernel
Reboot

[3] set max_async_ports

[4] set aio_max_ops

[5] set privilege
/usr/sbin/setprivgrp dba MLOCK


2>
##############################################could you teach us, what it means "asyncdsk in/out state" ?
and,
could you teach us, Which state(IN or OUT) Should be choosed for async i/o.

please reply to noh019@naver.com

Thanks...

[Duncan Edmonstone · Accepted solution]

Assuming you are talking about what you see in SAM then this tells you whether the asyncdsk driver is IN or OUT of the kernel...

Obviously you need it to be IN

HTH

Duncan

[noh019]

hi..

Thanks for your reply.
we will set IN state for asyncdsk.

Could you teach me what is the difference IN state and OUT state.

Thanks...

[Duncan Edmonstone]

think of it like device drivers on your PC - the driver is either installed (IN) or not installed (OUT) - for HP-UX when a driver is installed, the modules for it are added to the kernel, which in the case of 11.11 usually requires a reboot - newer versions of the OS can install some drivers without a reboot.

HTH

Duncan

[noh019]

Thanks for your help~