Reinstall HP-UX from external scsi tape

[geir_2]

Hi,

Recently I bought an old HP_UX computer. Now I want to install UNIX from a bootable tape image (backup).

I'm not sure if the computer is able to see the scsi id. When I execute > show all commando I cannot see the scsi-tape. I have also tried to change scsi id without any results.

The tape device is connected to Narrow S.E on the HP-UX. The computer is delivered with HP_UX, maybe I should boot into single user mode., bu I'm not sure how I do it.

Hope somebody can give me some hints :-)

Regards
Geir

[Mike Shilladay]

Hi Geir,

What you are trying to do is perfectly reasonable, however, the hardware sounds as though it needs some attention. Firstly do you know that the SCSI cable has been working correctly, make sure that coonections are seated properly and that no pins are damaged. If the tape is the only device on the bus, any SCSI ID from 0-6 will do. Check that you have a correct terminator - if the drive has a 68 pin HDTS connection, then it is possible to connect an HVD terminator to it - this will not work. Preferably the multimode terminators are best, they decide if SE or Ultra Termiantion is required, sometime there is a led on the back red=SE green=Ultra.

Now for some questions, if the above han't worked.

What kind of HP Server are you connecting it to? Is it an integral SCSI or and additional card if additioanl card what is the card part number. What is the DAT Tape drive model?

With the exception of broken hardware, I am sure we can get this working for you.

Mike

[geir_2]

Hi,

Thanks.
It still doesn't work. I have tried different scsi id's without success. The worksation I ordered was delivered without internal tape drive. Then I thought it should be possible to use an external tape device. Normally I can use the same tape drive on a VMS system without problem.

The server is B180L, which is a HP-UX workstation. The tape drive is delivered by Digital Equipment, and the type is TLZ09-DB. The tape device is terminated normally.

I need a command to verify that the computer can recognize the tape device. maybe Narrow S.E is not correct connection?

Thnaks again.

Geir

[MarkSyder]

Have you tried:

ioscan -fnC tape

Mark Syder (like the drink but spelt different)

[Pete Randall]

In what state is the computer now? Are you logged in and at a command prompt. Are you in the process of booting - perhaps at the ISL prompt? I've never heard of a "show all" command in HP-UX. If you were at the ISL prompt, you could use a "sea" command to search for devices available to you. If you are logged in then you want to do an "ioscan", as Mark suggests.


Pete

[Mike Shilladay]

Hi Geir,

This takes me back a few years to hear a Digital branded DAT. I rememeber in my previous company we had a DAT connected to a VMS (MicroVAX) server and the dip switches needed some attention to make it work from the default settings. Let me see if I can dig out some info for you for what should work for the HP. The dip switches are awkwardly placed as they are on the underside of the unit within the case. I am making the assumption that the DAT is an HP mechanism, if it is a SONY mechanism then the dip switches maybe elsewhere and may be set differently.

There are also some jumpers on the back of the mechanism for SCSI ID, SCSI Termination and somthing else, cannot remember off the top of my head. Is the SCSI Termination set on the device, if so you could be over terminated therefore causing problems.

To view the dip switches, you will have to take the mechnism out of the case. Taking things apart bares a risk and if you **depend** on the dat for your VMS server, then should consider the risks carefully.

Just out of interest, does the server show the device from ODE? (if you have ODE as an option from ISL prompt).

Mike.

[Steven E. Protter]

Shalom,

I brought this up with HP support on this issue.

Many non-hp drives work. You can even boot off of them.

However HP will only support you on a boot problem with certified hardware, which means HP. That is what they said to me.

Your milage may vary.

SEP

[V. Nyga]

Hi,

can you boot the ws?
Have you check if tape drivers are already configured in the kernel?
You can see it in SAM - Kernel Configuration - Drivers: stape has to be stated 'in'.

When you interrupt boot process can you see the drive when doing 'sea'?

Volkmar

[Mike Shilladay]

Hi Geir,

I have found the dip switch documentation, for HP-UX and HP mechanism it is

Switch Number Value
1 on
2 on
3 off
4 on
5 on
6 on
7 on
8 on

The jumpers on the back should have TP enabled.

Mike.

[geir_2]

Hi,
Thanks to all. When I changed the scsi cable, the tape device is visible. It's new for me, and I have never seen it before. maybe (luck).

But When I restore it seems to be mismatch between the disk on the workstation, and the backup image on tape.

Does somebody know the commands I need if I want to see the disktype + capacity on

1) the new workstation (console mode)
2) existing/old workstation (shell mode)

Maybe I should start a new thread?

Regards
Geir

[Mike Shilladay]

Hi Geir,

If I understand your question correctly the ignite image differs to what you physically have on the workstation.

If you run ignite interactively you can change the disks (assuming that there is more than one to choose from), change the filesystem sizes, as well as a lot of other things.

Ignite/UX should tell you the size of the disk in MB under the "disk info" button that appears in the "file systems" screen. It also tells you the remaining space (in MB) in the file system screen.

Mike.

P.S. I am pleased that you have found the tape without having to resort to dismantling the tape drive.