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

[Dave Hahn]

The tape drive is being recognized as /dev/ht0 (ide tape 0).  What do 
you get is you point mt at /dev/ht0?

-d

Jeff Cann (by way of Jeff Cann <j.cann at isuma.org>) 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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