topic Re: DAT 72 Tape drive is not detecting-hpux 11.23 in Operating System - HP-UX

DAT 72 Tape drive is not detecting-hpux 11.23

Kanagaraj — Fri, 13 Mar 2009 16:27:41 GMT

Dear All,

I am facing a problem that tape drive DAT72 is not detecting in rp3440 server.It is having OS HPUX-11.23.
the same DAT 72 drive is detecing and working fine in HPUX-11.11 and same model server.

Is there any special kernel settings need to be done?.Please suggest on this issue.

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Duncan Edmonstone — Fri, 13 Mar 2009 16:36:01 GMT

check that the stape driver module is in the kernel:

kcmodule -v stape

HTH

Duncan

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Kanagaraj — Sat, 14 Mar 2009 00:27:02 GMT

Hi,
I am getting following error.

# kcmodule -v stape
ERROR: Unable to read title of running configuration: KRS error code 2

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Duncan Edmonstone — Sat, 14 Mar 2009 07:45:00 GMT

hmmm this may be a seperate problem, but needs to be fixed as well - you can see this when there's been a problem with kernel configurations, or aborted patch installations... there's also a bad patch (PHKL_35029) which can also cause this.

Can you see if you have an error messages similar to that you got from kcmodule in /etc/rc.log ?

And check if you have PHKL_35029 installed?

You're gonna have to fix this kernel issue before you can address the trape problem, so park that for the moment.

HTH

Duncan

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Taifur — Sat, 14 Mar 2009 10:40:42 GMT

Hi D.kanagarj,

You can check kernel parameter by kctune or kcweb.
You can follow below steps,

step1: output from kcmodule where the stape driver is not installed
# /usr/sbin/kcmodule stape

step2: Save the current kernel configuration to file krbackup
# kconfig -s krbackup

step3: install the stape module
# kcmodule stape=static

step4: Reboot the server to activate the new kernel
# cd /
# shutdown -ry 0

Or,

#lsdev -C tape
Character Block Driver Class
205 -1 stape tape

Should give similar output if the driver is there in kernel otherwise shall be blank.

If the driver not listed you can add the same through either command line or using SAM.

SAM->Kenrel Configuration->Drivers

Select stape and from action menu select add driver to kernel. Followed by this the kernel shall rebuild and the system shall reboot.

Rgds//
Taifur

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Kanagaraj — Mon, 16 Mar 2009 02:15:39 GMT

Thank you,I will try above mentioned steps and let you know prograss....

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Kanagaraj — Thu, 19 Mar 2009 01:37:37 GMT

Hi,

No prograss.....

# /usr/sbin/kcmodule stape
ERROR: Unable to read title of running configuration: KRS error code 2

what could be the reason like this behavior,I am trying it without tape drive.Should I try with tape drive(I have disconnected)

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Kanagaraj — Sat, 06 Jun 2009 06:37:15 GMT

Dear All,

Tape drive is not detecting issue solved by creating new kernel configuration file and I have installed 28 kernel dependency patches.

after that I have set the stape driver static and IN.Then Tape drive was detected.Now I have taken ignite backup successfully.

Thanks a lot for your valuable replies.

Re: DAT 72 Tape drive is not detecting-hpux 11.23

Kanagaraj — Sat, 06 Jun 2009 06:38:09 GMT

I am closing this thread