[CLUE-Talk] Do I have a bad tape?

[Jeff Cann]

Oops.  Should have sent to clue-tech...  Reposted there.
Jeff

On Saturday 20 December 2003 9:52 pm, Jeff Cann wrote:
> OK.
>
> Sort of a long story.  But, I have an HP Colorado 5 GB tape drive.  In 2.2
> kernels, I used the ide-tape module.  This module became broken /
> unsupported in 2.4 and then (I think subsequently fixed).  However, in 2.4
> I switched to using the scsi-ide module instead.
>
> I have neglected backups for a while after moving my development server to
> RHAT 9.
>
> On system boot, the drive normally would fire up and load the tape.  I no
> longer observe this loading.  I hear the drive click when I load my tape as
> if the drive is trying to load the tape.
>
> dmesg reports:
>
> hdd: attached ide-tape driver.
> ide-tape: hdd <-> ht0: HP COLORADO 5GB rev 2.04
> ide-tape: hdd: overriding capabilities->speed (assuming 650KB/sec)
> ide-tape: hdd: overriding capabilities->max_speed (assuming 650KB/sec)
> ide-tape: hdd <-> ht0: 650KBps, 16*32kB buffer, 6336kB pipeline, 100ms
> tDSC, DMA
> ide-tape: Block location is unknown to the tape
>
> Hmm - Block location is unknown to the tape.
>
> I then tried to use both the ide-tape and scsi-ide drivers and issue a
> rewind command via 'mt'.  I either get (see below for commands)
>
> ide-tape --> Device or resource busy
> scsi-ide --> Input/output error
>
> Both drivers seem to recognize the drive and it reports its information
> correctly.
>
> Do I have a bad tape?  What else might cause these errors?
>
> Thanks,
> Jeff
>
> -- ide-tape ---
> # /sbin/insmod ide-tape
> # mt -f /dev/ht0 rewind
> /dev/ht0: Device or resource busy
>
> # dmesg | tail -3
> ide-tape: Block location is unknown to the tape
> ide-tape: ht0: I/O error, pc =  0, key =  3, asc = 52, ascq =  0
> ide-tape: ht0: drive not ready
>
> # /sbin/rmmod ide-tape
>
> --- scsi ide ---
> # /sbin/insmod scsi_mod
> Using /lib/modules/2.4.20-20.9/kernel/drivers/scsi/scsi_mod.o
> [root at jumanji root]# /sbin/insmod ide-scsi
> Using /lib/modules/2.4.20-20.9/kernel/drivers/scsi/ide-scsi.o
> [root at jumanji root]#  mt -f /dev/st0 rewind
> /dev/st0: Input/output error
>
> # dmesg | tail -10
> SCSI subsystem driver Revision: 1.00
> hdd: attached ide-scsi driver.
> scsi0 : SCSI host adapter emulation for IDE ATAPI devices
>   Vendor: HP        Model: COLORADO 5GB      Rev: 2.04
>   Type:   Sequential-Access                  ANSI SCSI revision: 02
> st: Version 20030406, bufsize 32768, max init. bufs 4, s/g segs 16
> Attached scsi tape st0 at scsi0, channel 0, id 0, lun 0

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