Tape Autochanger : picker not recognised

[Ivan Coenegrachts]

I connected a DDS3 Autoloader on my D270. When doing an ioscan, it is recognized as a C1537A, so that's ok. But the robotic arm ('picker') does not appear in the list.

The spt and sctl-drivers are both loaded on the system. Option-switches are set to '6', the server-settings.

I tested this out on an old 827/H20, also running HP-UX 10.20. All worked fine there. Only difference is that I used spt in the system-file to bind the device.

Should I use sctl on the D-box, or is something else necessary ?

[Andreas Voss]

Hi,

i think only the spt driver is sufficient to use the picker device.
I have a HP 48L Autochanger that worked with the spt driver.

Regards

Andrew

[Patrick Wessel]

The main difference is that the H20 uses the tape2 driver and the D270 is using the stape driver.
stape uses scsi_ctl as pass trough driver, The NIO based systems (HP-PB bus) use scsi_pt. Check out the man pages of scsi_ctl and scsi_pt for more information


To make a long storry short: you need sctl on your D-class system.

[Dale McNamara]

Ivan,

We have still had to bind the physical device to the driver in the system file.

[Eric de Lange_1]

I'm not sure if option '6' is a requirement but on NT systems we usually set it to autoloader mode.

Try setting the autoloader options switch to '7' instead of '6'. Then is is in autoloader mode instead of stacker mode.

Good luck

Eric

[Patrick Wessel]

'6' ist the perfect setting for the option switch on a 9000/800

[echong]

Also try "schgr" driver, it will automatically recognize the hardware once rebooted.

[Joseph T. Wyckoff]

SCHGR is really for MO drives -it can and does work with tape libraries..but in some configurations it seems to be flaky. The nice thing about SCHGR is that it is easy...

When someone is having problems configuring a drive with Omniback, we often move them from SCHGR to SCTL or (occasionally now SPT.)

[Anthony Barnes]

Greetings,

On a slightly off topic thread:

I would like to be able to select any slot on my HP C1537A tape drive remotely. I currently use SAM for backups on my D820 and I dislike having to cycle through the tapes manually.

Suggested readings to point me in the right direction? The manual was not very clear to me.

An ioscan on my 9000 for the tape;

tape 0 8/16/5.3.0 stape CLAIMED DEVICE HP C1537A


Thanks for your time.

[Rick Garland]

Documant KBAN00000190 Configure a Tape Library in HP 10.x and 11.x

This covers the issue of adding the picker using the mknod command and running a small test program to see if the picker is recognized. The driver for the picker is schgr,
the tape drives use sctl or spt depending on the SCSI card.