dds on b2600 doesn't work

[Hr. RJH Verhagen]

I try to connect a DDS 4 to a B2600 workstation but when I search the boor devices I can’t see the external tape drive. The tape drive is connected by a lsi logix scsi card. I also tried a LTO (200 GB) drive but the computer doesn’t see this device. When I connect my broken DLT 40/80 Gb drive and give the sea(rche) commando I can see this device and I can select the device to boot from it. The DDS tape drive and the DLT are hp drives, the LTO is a dell drive. Does anybody know why the DDS isn’t seen by the B2600? The firmware from the B2660is up to date.

[jaivinder]

Hi,

Please describe the problem properly
If u r facing this problem in the OS then there might some driver issue or if u r using the same from BCH than your card is having some problem.From OS try by doing
#ioscan -fn
And see the controller state if it is claimed than give :-
#ioscan -fnC tape

else check for the driver in the kermal subsystem.

[Fabian Briseño]

Hello.

Is your var/adm/syslog/syslog.log file giving any messages ? if so post them here please

Also do an ioscan -fnC tape and see if there is a NO_HW state.

It migth be necessary to don an isnf command, but we need more information.

[Hr. RJH Verhagen]

Hello,
Iâ m sorry if I was not clear. I mean that I stop the boot procedure by pressing a key while boot up. Then I type the search commando [sea] and the system gives me the boot devices (P0, P1, ..). The DLT tape is shown as a boot devices (so I can restore an ignite tape) but the DDS and the LTO arenâ t sown so I canâ t boot from them and I canâ t restore an ignite backup on this system.
When I connect the LTO drive to my system and I boot hp-ux 11.0 the tape drive Isnâ t shown with a ioscan.
Thanks for you replies,
Robert Verhagen.

[Khanna_2]

Hi
check your SCSI controller will support the LVD devices or not also check the SCSI ID of the device connected on the SCSI bus.

Kanna

[Hr. RJH Verhagen]

This is the ioscan with the dds connected:

# ioscan
H/W Path Class Description
====================================================
bc
10 ioa System Bus Adapter (582)
10/0 ba Local PCI Bus Adapter (782)
10/0/12/0 lan HP PCI 10/100Base-TX Core
10/0/14/0 ext_bus IDE
10/0/14/0.0 target
10/0/14/0.0.0 disk MITSUMI CD-ROM FX4820T!B
10/0/14/0.7 target
10/0/14/0.7.0 ctl Initiator
10/0/14/1 ba PCI Core I/O Adapter
10/0/14/1/1 tty Built-in RS-232C
10/0/14/1/2 tty Built-in RS-232C
10/0/14/1/3 ext_bus Built-in Parallel Interface
10/0/14/2 usb Built-in USB Interface
10/0/14/2.1 usbhub USB Root Hub
10/0/14/2.1.2 usbhid USB HID Mouse(0)
10/0/14/2.1.3 usbhid USB HID Kbd(1)
10/0/15/0 ext_bus SCSI C895 Ultra2 Wide LVD
10/0/15/0.5 target
10/0/15/0.5.0 disk HP 36.4GST336706LC
10/0/15/0.6 target
10/0/15/0.6.0 disk SEAGATE ST336704LC
10/0/15/0.7 target
10/0/15/0.7.0 ctl Initiator
10/1 ba Local PCI Bus Adapter (782)
10/1/3/0 graphics PCI Display (103c108b)
10/1/4/0 ext_bus SCSI C875 Ultra Wide Differential
10/1/4/0.7 target
10/1/4/0.7.0 ctl Initiator
32 processor Processor
49 memory Memory


The dds tape had scsi id 3, this is the same as the broken dlt tape.

[Hr. RJH Verhagen]

this is an ioscan with the dlt attached:
# ioscan
H/W Path Class Description
====================================================
bc
10 ioa System Bus Adapter (582)
10/0 ba Local PCI Bus Adapter (782)
10/0/12/0 lan HP PCI 10/100Base-TX Core
10/0/14/0 ext_bus IDE
10/0/14/0.0 target
10/0/14/0.0.0 disk MITSUMI CD-ROM FX4820T!B
10/0/14/0.7 target
10/0/14/0.7.0 ctl Initiator
10/0/14/1 ba PCI Core I/O Adapter
10/0/14/1/1 tty Built-in RS-232C
10/0/14/1/2 tty Built-in RS-232C
10/0/14/1/3 ext_bus Built-in Parallel Interface
10/0/14/2 usb Built-in USB Interface
10/0/14/2.1 usbhub USB Root Hub
10/0/14/2.1.2 usbhid USB HID Mouse(0)
10/0/14/2.1.3 usbhid USB HID Kbd(1)
10/0/15/0 ext_bus SCSI C895 Ultra2 Wide LVD
10/0/15/0.5 target
10/0/15/0.5.0 disk HP 36.4GST336706LC
10/0/15/0.6 target
10/0/15/0.6.0 disk SEAGATE ST336704LC
10/0/15/0.7 target
10/0/15/0.7.0 ctl Initiator
10/1 ba Local PCI Bus Adapter (782)
10/1/3/0 graphics PCI Display (103c108b)
10/1/4/0 ext_bus SCSI C875 Ultra Wide Differential
10/1/4/0.0 target
10/1/4/0.0.0 tape QUANTUM DLT8000
10/1/4/0.7 target
10/1/4/0.7.0 ctl Initiator
32 processor Processor
49 memory Memory

[Fabian Briseño]

Hi again.

can you try this tape device in another server to see if ti works there ?

Maybe the SCSI terminator is not working correctly.

does /var/adm/syslog/syslog.log report anithing?

also check /etc/rc.log

and please post the findings of both files here ?

Finally remember to assign points for any helpfull answers.

[Marcel Burggraeve · Accepted solution]

Best guess would be that the DLT40/80 unit is a fast wide differential one where the DDS and LTO are lvd units.
If that's the case both DDS and LTO will not work on that interface.

[Hr. RJH Verhagen]

I did not know that there are HDV and LDV scsi devices. I googled and I found the following:

How About LVD-HVD Compatibility?

So now we have shown compatibility between LVD and SE SCSI. What about HVD SCSI? I am sorry to have to tell you that there is no more direct compatibility between LVD and HVD SCSI than there is between HVD and SE SCSI. It does not exist. Placing an LVD device on an HVD bus will cause the LVD device to shut down. Placing an HVD device on an LVD bus will cause the entire LVD bus to shut down.
(http://www.storagesearch.com/lvdart.html)

I think I have to by a LVD scsi cart to connect the DDS or LTO devices.

Thanks for your help!