Re: Tape drive RHEL5 on IBM P

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On Sat, Jun 14, 2008 at 12:06 PM, ammad shah <mammadshah@xxxxxxxxxxx> wrote:

>
> hi all,
> i am using RHEL 5 on IBM-P series having IBM Tape drive LTO3. I can backup
> small size of file/s. but when i try to backup file/files with larger size
> it stops working.
> even i have changed the tape cartrage (disk). but still in trouble.
>
> root# mt -f /dev/st0 status
>
> SCSI 2 tape drive:
> File number=0, block number=0, partition=0.
> Tape block size 0 bytes. Density code 0x44 (no translation).
> Soft error count since last status=0
> General status bits on (41010000):
> BOT ONLINE IM_REP_EN
>
>
> # tar cvf /dev/st0 /etc
>
> tar: Removing leading `/' from member names
>
> /etc/
> /etc/DIR_COLORS
> /etc/issue.net
> /etc/csh.login
> /etc/pam_pkcs11/
> /etc/pam_pkcs11/pkcs11_eventmgr.conf
> /etc/pam_pkcs11/pam_pkcs11.conf
> /etc/scrollkeeper.conf
> /etc/NetworkManager/
> /etc/gdm/modules/AccessKeyMouseEvents
>
> tar: /dev/st0: Cannot write: Input/output error
> tar: Error is not recoverable: exiting now
>
>
> There are (hexadecimal) errors in log file (/var/log/messages) and on
> console
>
>
> Jun 14 18:50:44 Mars kernel: ipr: 000003D0: 594A0900 00008000 D0001010
> 00000000
> Jun 14 18:50:44 Mars kernel: ipr: 000003E0: 00000000 00000000 00000000
> 00000000
> Jun 14 18:50:50 Mars kernel: st0: Current: sense key: Unit Attention
> Jun 14 18:50:50 Mars kernel:     Additional sense: Power on, reset, or bus
> device reset occurred
>
>
>
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typically, when we see this, either the tape or the tape drive is bad.
we have also seen when several tapes in a box/batch/shipment are bad.

you have to verify that your tapes are known good and that the tape drive is
known good.
(i.e., basic troubleshooting)
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