RE: dd if=/dev/rmt/2cbn of=/dev/null ibs=32768 obs=32768 files=85

From: Ed Skolnik (eskolnik@interpublic.com)
Date: Mon May 12 2003 - 16:28:46 EDT


I misread the block size for my backup software.... Please ignore......

-----Original Message-----
From: Ed Skolnik [mailto:eskolnik@interpublic.com]
Sent: Monday, May 12, 2003 3:06 PM
To: 'Darren Dunham'
Subject: RE: dd if=/dev/rmt/2cbn of=/dev/null ibs=32768 obs=32768 files=85

Now dumb am I ,.

-----Original Message-----
From: Darren Dunham [mailto:ddunham@taos.com]
Sent: Monday, May 12, 2003 2:55 PM
To: Ed Skolnik
Subject: Re: dd if=/dev/rmt/2cbn of=/dev/null ibs=32768 obs=32768 files=85

>
> Help!
> Why would I be getting this error?
>
> chi-backup# mt -f /dev/rmt/2cbn status
> Quantum Super DLT 220 tape drive:
> sense key(0x0)= No Additional Sense residual= 0 retries= 0
> file no= 0 block no= 0
> chi-backup# dd if=/dev/rmt/2cbn of=/dev/null ibs=32768 obs=32768
> files=1
> 1+0 records in
> 1+0 records out
> chi-backup# dd if=/dev/rmt/2cbn of=/dev/null ibs=32768 obs=32768
> files=1
> 1+0 records in
> 1+0 records out
> chi-backup# dd if=/dev/rmt/2cbn of=/dev/null ibs=32768 obs=32768
> files=1
> read: Not enough space
> 0+0 records in
> 0+0 records out

The third tape file contains data on it with a block size larger than 32k.
The "not enough space" is a generic error from the tape driver saying that
the data in the block didn't fit into the allocated buffer (which was
allocated based on your ibs= value).

-- 
Darren Dunham                                           ddunham@taos.com
Unix System Administrator                    Taos - The SysAdmin Company
Got some Dr Pepper?                           San Francisco, CA bay area
         < This line left intentionally blank to confuse you. >
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