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Date: Thu, 29 Jan 1998 18:54:58 +0000
From: Karl Pielorz <kpielorz@tdx.co.uk>
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To: Chris Czerwinski <chris@lakecom.com>
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Subject: Re: How do I get the most out of my SONY SDT-7000?
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Try adding an 'a' to the dump command, so dump will continue writing to the
end of the tape, not until dump 'thinks' the tape is full, e.g.

dump -0uan -f /dev/nrst0 /


Regards,

Karl

Chris Czerwinski wrote:
> 
> Attempting to get the most data onto my tape drives and my dumps seem
> to fill up the tape drive way to quickly. The tape capacity should be
> 8GB but I'm lucky if I get 500MB.....
> 
> The dump commands I'm using are:
> 
> dump -0un -f /dev/nrst0 /
> dump -0un -f /dev/nrst0 /tmp
> dump -0un -f /dev/nrst0 /var
> dump -0un -f /dev/nrst0 /usr
> dump -0un -f /dev/rst0  /u
> 
> dmesg shows:
> 
> (ahc0:1:0): "SONY SDT-7000 0195" type 1 removable SCSI 2
> st0(ahc0:1:0): Sequential-Access density code 0x13, 512-byte blocks,
> write-enabled
> 
> Supposedly I can select these other modes but dump fails with all:
> 
> 125 [root] # mt stat
> Present Mode:   Density = X3B5/88-185A Blocksize variable
> ---------available modes---------
> Mode 0:         Density = 0x00         Blocksize variable
> Mode 1:         Density = X3.136-1986  Blocksize = 512 bytes
> Mode 2:         Density = X3.39-1986   Blocksize variable
> Mode 3:         Density = X3.54-1986   Blocksize variable
> 
> Thanks,
> 
> Chris Czerwinski