usb tape drive issue

[Wayne Anschutz]

Pete,

I'll give you what I can.

Write commands tested from the /etc directory
find . -depth | cpio -ocB -O /dev/sa0
tar cvf /dev/sa0 *
find . | cpio -ocB | dd bs=5120 of=/dev/sa0

usbconfig pertinent line
ugen0.3 <Hewlett Packard DAT160 USB Tape> at usbus0, cfg=0, md=HOST 
spd=HIGH(480Mbps) pwr=on (2ma)

It's interesting to note the tape was sold to me as Quantum and it does have
a Quantum face plate which is identical to another drive I have which is HP.
I do not have the model and I'm not on site now.

>From dmesg a sampling of the errors and a device report.
a0:umass-sim0:0:0:0): WRITE FILEMARKS(6). CDB: 10 00 00 00 02 00
(sa0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(sa0:umass-sim0:0:0:0): Error 5, Retries exhausted
(sa0:umass-sim0:0:0:0): READ POSITION. CDB: 34 06 00 00 00 00 00 00 00 00
(sa0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(sa0:umass-sim0:0:0:0): SCSI status: Check Condition
(sa0:umass-sim0:0:0:0): SCSI sense: UNIT ATTENTION asc:29,2 (SCSI bus reset occu
rred)
(sa0:umass-sim0:0:0:0): Retrying command (per sense data)
(sa0:umass-sim0:0:0:0): failed to write terminating filemark(s)
(sa0:umass-sim0:0:0:0): REWIND. CDB: 01 00 00 00 00 00
(sa0:umass-sim0:0:0:0): CAM status: CCB request completed with an error
(sa0:umass-sim0:0:0:0): Retrying command
(sa0:umass-sim0:0:0:0): REWIND. CDB: 01 00 00 00 00 00
(sa0:umass-sim0:0:0:0): CAM status: SCSI Status Error
(sa0:umass-sim0:0:0:0): SCSI status: Check Condition
(sa0:umass-sim0:0:0:0): SCSI sense: UNIT ATTENTION asc:29,2 (SCSI bus reset occu
rred)
(sa0:umass-sim0:0:0:0): Retrying command (per sense data)a0 at umass-sim0 bus 0 scbus9 target 0 lun 0
sa0: <QUANTUM DAT   DAT160-000 WU8A> Removable Sequential Access SCSI-3 device
sa0: Serial Number 4855313296425633
sa0: 40.000MB/s transfers

Pete, I hope that helps - I have to decide soon if this can fixed or if
different tape interface would work?

Wayne

-------------------original message------------
Subject: Re: usb tape drive issue
To: Wayne Anschutz <wayne at crinc.com>, freebsd-questions at freebsd.org
From: Pete Wright <pete at nomadlogic.org>
Date: Fri, 3 Jan 2020 13:59:50 -0800



On 1/3/20 11:48 AM, Wayne Anschutz wrote:
> Folks,
>
> I'm new at this bsd OS, but did get an xinuos open server 10 operating
> which is BSD. I've managed to get everything working with some trial and
> error picking the correct ports for necessary libraries.  The BSD os is
> stable version 11.3.
>
> The problem popped up when I tried to make a backup tape using a usb dat160
> internal drive.  After testing a lot I found that the drive would read
> tar and dd formats correctly.  It did only a flawed read on cpio tapes.  It
> always failed on any write with CAM errors and scsi errors.  Research on
> the web proved that this is not an uncommon problem with usb storage
> devices.  I am not interested in being a freeBSD test bed!  I need a stable
> OS for my customers.
>
> My first question - would updateing to stable 12.1 solve this?  If so what
> are the updateing pit falls?  Would switching to a dat160 scsi lvd drive
> solve the problem?

I think the best next step would be if you could provide additional 
debugging information.B  for example:

- what is the model number of the tape drive in question?B  also, what 
does the output of "usbconfig" look like when the device is attached?

- can you share an example of the errors when you are running cpio? also 
relevant messages from "dmesg" would be helpful here as well.

- also if you can share the cpio commands you are running that would be 
helpful as well.

Cheers,
-pete

-- 
Pete Wright
pete at nomadlogic.org
@nomadlogicLA