Disk drives not connected.

[Stefan Farrelly]

The SCSI ids on each side of the Jamaica may be the same hence you cant see the new disks (and getting these errors), check the scsi settings on the back of the Jamaica (both sides) and make sure theyre all unique.

[Tracey]

What are the SCSI ID's? Could be that they are out of range for the driver/software you are using.

[Srividhya Narayanan]

The SCSI id's are all unique. I already had the following
4.0.0
4.1.0
4.2.0
4.5.0
4.8.0
4.9.0
I'm adding 4.6.0 & 4.7.0.

I just connected side2 with just the 1 new disks (4.6.0) and it gives me "Retrying HOT SWAP disc". I've put 2 scsi terminators on the both the bottom of the side1 & side2. And connected the side1 top to the machine.

Thanks,
Sri

[Tracey]

On my one D210, the SCSI id 6 is reserved for the internal hot swap drive.

[Stefan Farrelly]

SCSI 7 is reserved for the controller, change it to something else.
Sorry about the multiple postings - I keep getting error 400's!, it never said once I had successfully replied!

[Srividhya Narayanan]

I changed it to 10, still gives me the same error. did i do something wrong in the connection.

Thanks,
sri

[Stefan Farrelly]

If you change a SCSI address on the Jamaica you have to powercycle the whole unit, then reissue an ioscan -f on your HP server. Setting it to 10 was fine.

[Srividhya Narayanan]

I rebooted the system too, still i get the same error message.

Thanks,
Sri

[Stefan Farrelly · Accepted solution]

This is a little confusing. So at the moment you have Side1 (top) with 4 disks in it connected to the HP server and Side1 bottom connected to Side2 top and only 1 terminator at Side2 bottom ? If you can see all the 4 disks on Side1 but none on Side2 then you have a hardware problem of some sort. Cable not tight, or one of the disks on Side2 has a hardware fault and it taking out the whole of Side2, or the SCSI controller on Side2 is not working (this is what I thought was happening earlier when you had a disk slot on Side2 set to SCSI 7 - which would take out Side2's controller and all the disks on Side2.

Things to try; back to connecting the host to Side2 top only, and a terminator on Side2 bottom. Insert 1 disk into Side2 only, do an ioscan, can you see it ? If not try a different disk in a different slot on Side2, do an ioscan -f, can you see it ? If still not then something is wrong with Side2 - you have a hardware problem, call HP.
If you can see a disk on Side2 then continue adding disks to Side2, do an ioscan -f after each addition, can you see the new disk ? this may help to establish if a disk is faulty or the slot in which it is going into is faulty - in which case youre going to have to call an HP engineer again. Once you prove Side2 is aok then you can cable from Side2 bottom to Side1 top and move the terminator to Side1 bottom and do an ioscan and all the disks should be there. Phew! Its late here, im off to bed.

[Srividhya Narayanan]

Hi,

Thanks for all your help and sorry for this late response, I was just busy with other things didnt get time to sit with this one, since this is a development box. Finally we found out that the SCSI cable was bad. I replaced the SCSI cables with the new one. when I boot the system, at the boot prompt when I enter SEARCH, I can see all the disks are connected. But the system has trouble booting up. It says the following command and hangs up at the last command,

Boot
:disc(4.5.0:0)/stand/vmunix
3614452+319488+423264 start 0x1b4cf8

i dont know if these means anything, just one of the disk in the disk storage light-up.

Could anyone tell me what went wrong???

Thanks so much,
Sri

[Stefan Farrelly]

Dont forget to allocate points to all those who helped you!

Now, your current problem. It must have the OS on it and is bootable because the kernel loads but then you say it hangs. How long do you wait before you decide its hung ? at the point youve listed the kernel is busy mapping out memory and loading the kernel tables, which on a system with say 2-4Gb of RAM can take a looonng time.
If youve given it say 30 mins to be safe and it doesnt progress then ok, youve got a problem.

Is this disk part of a mirrored set ? Ie. is it the root primary or mirror. It could be your trying to boot off the root mirror without the root pirmary disk present ?

Other problems which can cause a hang at this point are lan card problems or back to a disk problem!

Can you try booting it in single user mode. Reboot, when it asks you to press a key to interrupt autoboot do so, then use your boot command (boot pri [?]) and when it asks to interact with IPC answer Y. Then type in the command; hpux -is

and see if it boots ok that way.

[Srividhya Narayanan]

Here's what it does, After about 15-20 min the console thru number of lines and finally said "SYSTEM PANIC" and kernel could not find the problem and DUMPSYS() called. A bunch of other warning messages and re-booted by itself and again did the same thing. I just shutdown the system.

Could anyone tell me what to do to bring the system back-up.

Thanks,
Sri

[Stefan Farrelly]

Did you try booting it into single user mode as explained in my earlier reply ?

Do you know if its the mirror disk your booting off or the primary ?

[Srividhya Narayanan]

Yes, I used the single user mode and it is booting off of the primary boot. Thats what it says while booting.

Thanks,
Sri

[John Palmer]

If you're not booting off one of the Jamaica disks then I'd try disconnecting the Jamaica altogether (and terminating the SCSI card(s)) to see if the system will boot.

[Srividhya Narayanan]

It WORKED!!! well I tried to remove the external storage (A3118A) completly and booted the system in single user mode and the system booted ok.

Thanks,
Sri

[Srividhya Narayanan]

Now how do I connect the disk storage and still boot the system?

Thanks,
Sri

[Stefan Farrelly]

Yes, John also thinks its a hardware problem of some sort with your Jamaica.
instead of single-user mode can you try LVM maintenance mode;
hpux -lm

The kernel is timing out trying to do an ioscan or talk to some hardware device, and your Jamaica is the most likely candidate at the moment. You may need to go thru the same steps as before to try to isolate the problem, disconnect the unused side of the Jamaica, remove unnecessary disks etc.

[Stefan Farrelly]

Well, youve just proved your Jamaica is still not working properly. By disconnecting it the system boots fine, when connected the kernel still has trouble talking to it and eventually panics and crashes. You wont be able to reconnect your Jamaica and get your server to boot until you fix the remaining hardware problem. I would call an HP engineer back in, show him that it boots without the Jamaica but not with it, and get him to isolate and fix the remaining hardware problem - thats his job.

[Srividhya Narayanan]

Thanks, You're right I'm going to call the HP engineer to fix the external storage problem. I'll post a message, when I find what went wrong.

Thanks for all your support,
Sri

[John Palmer]

What I would do now is to connect one side of the Jamaica at a time and reboot. I once had a Jamaica which had a faulty bus, one side was OK but the other caused all sorts of problems. HP replaced the unit.