On Jun 18, 2008, at 11:44 AM, James Bowes wrote:

> Hi.
>
> One thing that me concerned about tapes in bacula is the options. I  
> should say confused instead. I have the following options in my  
> bacula-sd.conf for the Storage section:
>
> Device {
>   Name = DLT                     #
>   Description = DLT8000
>   Media Type = DLT
>   Archive Device = /dev/nst0
>   AutoChanger = yes
>   Drive Index = 0
>   Offline On Unmount = no
>   Hardware End of Medium = yes
>   BSF at EOM             = no
>   Fast Forward Space File = yes
>   TWO EOF                 = no
>   AutomaticMount = yes               # when device opened, read it
>   AlwaysOpen = yes
>   LabelMedia = yes
>   #RemovableMedia = yes;
> #  RandomAccess = no;
>   # Enable the Alert command only if you have the mtx package loaded
>   Alert Command = "sh -c 'tapeinfo -f %c |grep TapeAlert|cat'"
>
> What are the pros and cons for the options Hardware End of Medium,  
> BSF at EOM, Fast Forward Space File and TWO EOF? I'd like to make  
> as sure as possible that the configuration would not cause a loss  
> of data on the tape due to end of media or end of file marks.
>

These options are sometimes hardware/OS specific.

My advice is to run btape and test your configuration.

Also: do a backup which spans two tapes.  Then restore.  Compare.

-- 
Dan Langille -- http://www.langille.org/






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