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Ignite UX and Narrow differential DLT 4000

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Mark Danckwerts
Occasional Contributor

Ignite UX and Narrow differential DLT 4000

A customer wants to perform Ignite recovery using a DLT 4000 (Narrow differential) connected via a FWD interface. The device is a C6382A Smart Storage Desktop DLT4000, and the interface card is A4910A or A4107A. SCSI cable is C2906A 50pin HD to 68pin HD. Is this possible. Any special issues
2 REPLIES
Andreas Voss
Honored Contributor
Solution

Re: Ignite UX and Narrow differential DLT 4000

Hi,

here an extract form /opt/ignite/share/doc/release_notes:

.4 DLT Tape Boot Issues
=========================

DLT is attached to HP 9000 Enterprise servers via Fast-Wide
Differential interface cards. DLT boot WILL NOT work when
attached via single-ended SCSI. DLT boot IS NOT supported for
systems that use NIO Fast-Wide Differential SCSI cards (Part
number 28696A). The matrix below explains systems (by class)
along with the bus types required for DLT to be recognized as
a bootable media device.

CLASS | BUS | SCSI Interface Card | DLT boot support? | Notes
----------------------------------------------------------------------
K-Class | HSC | A2969A FWD | yes | 1,2
| NIO | A28655A SE, A28696A FWD | no |
--------------------------------------------------------------------
D-Class | HSC | A4107A FWD | yes | 2
| Core | | no |
| EISA | | no |
--------------------------------------------------------------------
T-Class | HSC | A3644A FWD | no |
| NIO | A28655A SE | no |
--------------------------------------------------------------------
N-Class | PCI | FWD | yes |
--------------------------------------------------------------------
L-Class | PCI | FWD | yes |
--------------------------------------------------------------------
V-Class | PCI | A4800A FWD | yes | 4
--------------------------------------------------------------------
E-Class | NIO | A28655A SE, A28696A FWD | no | 3
--------------------------------------------------------------------
G-Class | NIO | A28655A SE, A28696A FWD | no | 3
--------------------------------------------------------------------
H-Class | NIO | A28655A SE, A28696A FWD | no | 3
--------------------------------------------------------------------
I-Class | NIO | A28655A SE, A28696A FWD | no | 3


Notes:

1. This class system has two internal bus types, HSC and NIO.
DLT is only bootable from the HSC bus.

2. The HSC and GSC busses are the same busses. These terms are used
interchangeably.

3. NIO and HP-PB refer to the same bus.

4. IPR (Independent Peripheral Release). A firmware upgrade
(at least 4.3, product number B6044AA) is required to enable tape
boot for the V-Class. The release date for firmware upgrade
version 4.3 is September 1998. Contact your HP representative


Regards
Highlighted
Lasse Knudsen
Esteemed Contributor

Re: Ignite UX and Narrow differential DLT 4000

Yes this should work as long as you have got the right cabel (and it look like you have).

Be aware of one thing though: Do not attach wide diff units at the same time to this scsi-bus - you will have a problem with 8 data bits being unterminated.
In a world without fences - who needs Gates ?