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Date:      Wed, 8 Dec 1999 15:24:47 -0500
From:      Greg Lehey <grog@mojave.sitaranetworks.com>
To:        Rodrigo Ormonde <ormonde@aker.com.br>, questions@FreeBSD.ORG
Subject:   Re: Problems with tar and 4mm DAT
Message-ID:  <19991208152447.61061@mojave.sitaranetworks.com>
In-Reply-To: <3.0.3.32.19991206173943.00691120@pop.aker.com.br>; from Rodrigo Ormonde on Mon, Dec 06, 1999 at 05:39:43PM -0200
References:  <3.0.3.32.19991206173943.00691120@pop.aker.com.br>

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On Monday,  6 December 1999 at 17:39:43 -0200, Rodrigo Ormonde wrote:
>   I'm trying to use the tar command to make a backup to a 4mm DAT in a
> FreeBSD 3.3 box. The tar starts the backup, but soon after it starts
> writing data to the tape, it aborts with the following message (however, it
> can write a few files before showing this message and I can restore these
> files later):
>
>   tar: can't write to /dev/rsa0 : Input/output error
>
>   The command I'm using to make the backup is:
>
>   tar cvf /dev/rsa0 /home
>
>   The kernel messages generated when it recognizes my SCSI adapter and the
> DAT device are:
>
>   amd0: <Tekram DC390(T)/AMD53c974 SCSI Host Adapter> rev 0x10 int a irq 10
> on pci 0.11.0
>   Waiting 15 seconds for SCSI devices to settle
>   sa0 at amd0 bus 0 target 2 lun 0
>   sa0: <SONY SDT-2000E E326> Removable Sequential Access SCSI-2 device
>   sa0: 5.000MB/s transfers (5.000MHz, offset 8)
>
>   Is there anything that I'm doing wrong ? Have anyone faced this problem
> before ?

Do you get any console messages to accompany the I/O error?  They
would be in /var/log/messages.

Greg
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