HOw to verify is the I/O Async is on ?

[maiques_2]

HellO,
I want to configure I/O Async for Sybase database.
How to vreify if the async_disk driver (Asynchronous Disk Pseudo Driver)is to IN
in the HP-UX Kernel,and know if i have to generating a new kernel ?
Thanks for your help.

[DCE]

The following should do give the process

Verify following drivers are in kernel
async-io
fs_async
Verify the device file /dev/async exists
If it does not exist, create it.
mknod /dev/async c 101 0x000000
chown bin:bin /dev/async
chmod 555 /dev/async

Verify the file /etc/privgroup exists
If it does not, create it.
touch /etc/privgroup
chown root:sys /etc/privgroup
chmod 444 /etc/privgroup
Modify /etc/privgroup with the following entry:
sybase RTPRIO MLOCK CHOWN.

[Sundar_7 · Accepted solution]

Hi,

# lsmod | grep -i async

Using the above command, you can find out if the async_disk driver is included in the kernel.

If not, you will have to create a system file and include the drive, regenerate the kernel and reboot.


Sundar.

[Raj D.]

Maiques,

check :

# lsdev | grep -i async

# ls -l /dev | grep async
(Also check the minor number and permission)

Cheers,
Raj.

[Jaime Bolanos Rojas.]

Maiques,

Another thing, you might want to specify the OS that you are running, as 11.23 have the support build in by default.

Regards,

Jaime.

[Dennis Handly]

His duplicate thread (That I'm asking to be removed), said 11.11.