Re: [Bacula-users] DDS-4

2006-11-10 Thread John Drescher
On 11/2/06, weyerma <[EMAIL PROTECTED]> wrote:
hi all,i have a prblem with my dds-4 drive.all tapes are only written to 20gb (uncompressed) and the tape fills.how can i turn the compression on, to fill all tapes up to 40gb ?Are you 100% sure that your data is compressible as you will not get any extra compression on already compressed files or random data? 
You can see if hardware compression is turned on by the use of the mt and I believe tapeinfo commands from the shell.John
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Re: [Bacula-users] DDS-4

2006-11-10 Thread Arno Lehmann
Hi,

On 11/2/2006 4:04 PM, weyerma wrote:
> hi all,
> 
> i have a prblem with my dds-4 drive.
> all tapes are only written to 20gb (uncompressed) and the tape fills.
> how can i turn the compression on, to fill all tapes up to 40gb ?

Do you want hardware- or software compression?

Arno

> my config:
> 
> Device {
> Name = "Autochanger"
> Media Type = DDS-4
> Archive Device = /dev/st0
> Changer Device = /dev/sg1
> Changer Command = "/var/lib/bacula/mtx-changer %c %o %S %a %d"
> AutoChanger = yes;
> AutomaticMount = yes;   # when device opened, read it
> AlwaysOpen = yes;
> LabelMedia = yes;
> RemovableMedia = yes;
> }
> 
> 
> 
> thanks for help
> --
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> 
> 
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-- 
IT-Service Lehmann[EMAIL PROTECTED]
Arno Lehmann  http://www.its-lehmann.de




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[Bacula-users] RE: [Bacula-users] DDS-4 Tape Low Capacity

2006-03-17 Thread Jens R . Victorin
Check if you have a "Maximum Volume Bytes" directive in your DIR.conf file or a 
"Maximum Volume Size" directive in your SD.conf file limiting the amount of 
data written to tape.

/Jens

> Dear All,
> 
>  
> 
> I hope someone can shed some light on this.
> 
>  
> 
> I have a Seagate DDS-4 drive (Osprey I think). I have TDK catridges that
> claim to be 20/40GB (I guess the upper figure is with hardware data
> compression). However, in use with Bacula and also when used with "fill" on
> btape, I get a maximum of about 1,200,000,000 bytes written on each tape
> before it reckons the tape is full. I was expecting to get about 20 times as
> much data on a tape.
> 
>  
> 
> Has anyone any ideas?
> 
>  
> 
> Many thanks
> 
>  
> 
> Catsmuvva (aka Nicole)
> 
>  
> 
> 
>


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