topic Re: rx26x0 disk slot SCSI IDs in Operating System - OpenVMS

rx26x0 disk slot SCSI IDs

Aaron Sakovich — Wed, 04 Apr 2007 11:11:34 GMT

Hi,

Quick question. I've got 3 rx26x0 systems (1 rx2600, 2 rx2620). None of them have a drive in slot #3 (i.e., each system has DKA0: and DKA100:). (Or is that slot #2? Is it 0-based?)

What will I see as the device ID when I insert a disk drive in the 3rd slot? I know it's going to be a "B" bus, and I'm guessing DKB0, but would like to know for sure.

Unfortunately, my systems are about 1400 miles away from me, and I'm trying to write a planning document. All the docu I've searched on HP's site does not specify what this slot is ID'd as; my own examination of the systems reveals that the second SCSI LVD controller is indeed PKB.

TIA,
Aaron

Re: rx26x0 disk slot SCSI IDs

Volker Halle — Wed, 04 Apr 2007 12:05:56 GMT

Aaron,

I vote for DKB0:

Based on the picture in:

http://h18000.www1.hp.com/products/quickspecs/12141_div/12141_div.HTML

and the following sentence:

Dual channel Ultra320 SCSI controller, 2 internal disks on one channel, 1 internal disk on a second channel

The SCSI adapter is PKB0, so the disk must be DKB0:

Volker.

Re: rx26x0 disk slot SCSI IDs

Aaron Sakovich — Wed, 04 Apr 2007 12:50:24 GMT

Hi Volker,

Yeah, I saw that pic and that statement. But voting is what the engineers do prior to implementation... ;^) They COULD have just as easily decided that DKB200 would be unambiguous and a good choice...

Nice try!
Aaron

Re: rx26x0 disk slot SCSI IDs

Richard Whalen — Wed, 04 Apr 2007 13:06:39 GMT

I see DKB200 on my RX2600 when I have 3 drives in it.

Re: rx26x0 disk slot SCSI IDs

Aaron Sakovich — Wed, 04 Apr 2007 13:21:20 GMT

Wow, and that was just a WAG on my part! Lucky guess -- now I've got to go back and correct my docu, where I'd presumed DKB0!

Thanks, Richard!

Re: rx26x0 disk slot SCSI IDs

Hoff — Wed, 04 Apr 2007 13:45:17 GMT

Every three-slot rx2600 and rx2620 I've encountered has its bottom slot (as oriented when rack-mounted) as dbk200 dka0:, dka100:, dkb200:.

Stephen Hoffman
HoffmanLabs LLC

Re: rx26x0 disk slot SCSI IDs

Colin Butcher — Wed, 04 Apr 2007 23:40:56 GMT

Also be aware that the connector on the back is DKB as well, so avoid ID2 for any devices you connect to that bus.

Cheers, Colin (www.xdelta.co.uk).

Re: rx26x0 disk slot SCSI IDs

Volker Halle — Thu, 05 Apr 2007 01:08:52 GMT

Aaron,

and once you know the 'answer', it's easy to find references by googling for 'rx2600 DKB200', like Colin's presentation:

http://www.downloads.xdelta.co.uk/decus%20uk%202005/rx2600%20bare%20metal%20install%2001mar2005%20issue%201%2028feb2005.pdf

Volker.