11.11 on rp5450 can't see DLT 8000 but sees tape loader

[Charles Soto]

I am trying to connect a HP SureStore Tape Autoloader Model 1/9 (C7145), with a DLT8000 drive to a rp5450. I've got it hooked up to the core I/O LVD SCSI (there is no other SCSI available). I can see the loader in ioscan -f, but not the drive. They are daisy-chained. The drive is SCSI ID 5, while the loader is 6. See ioscan.out attached.

I've installed PHKL_28096 (SCSI IO Cumulative Patch) and PHKL_28217 (SCSI Tape (stape) cumulative), which are the only relevant patches I could find related to DLT or DLT 8000.

Any ideas?

[Vincent Fleming]

That is strange...

Check all your cabling, be sure that the drive is receiving power. Try loading a tape in the drive.

Are you receiving any errors?

Let us know how you make out.

Good luck,

Vince

[Charles Soto]

I can only load tapes to the drive via the front panel. I can't use "mc" nor see the drive in SAM (I assume it uses ioscan to find hardware).

I've power cycled everything. I just double-checked the cabling- the loader is AFTER the drive on the chain, so the cabling is probably okay. Firmware REV of the drive is "59".

Thanks,
Charles

[Vincent Fleming]

The drive sounds broken. Is it new, or are you moving it from another system?

[Charles Soto]

It is new. I can run diagnostics. Would that help?

Charles

[Vincent Farrugia]

Hello,

It is either:

1. Bad daisy-chain cable (cable from controller SCSI to drive SCSI)

2. Bad drive

I would rule out bad terminator, since otherwise you'll have difficulty with your picker as well.

I don't think it is an OS issue.

HTH,
Vince

[Charles Soto]

SOLVED!

Thanks for the help, guys. It turns out to be a special files problem in unix. See:

http://forums.itrc.hp.com/cm/QuestionAnswer/1,,0x52dde822e739d711abdc0090277a778c,00.html

FYI, the unit is delivered with LVD terminator, and a teensy "daisy chain" cable that goes from the second port of the drive to the first port of the loader. The loader is at the *end* of the chain (well, the terminator actually is, but you know what I mean), so you can understand why I was so confused about this.

At least I will have a happy Friday, with backups proceeding as planned (and hopefully *succeeding* - keep fingers crossed ;)...

Charles