Hi,

Can a tape written by Bacula with one MaximumBlockSize value be reused after 
changing MaximumBlockSize to a different value? I mean, not the data on the 
tape, I understand all data will be lost, but can the tape itself be relabeled 
and then used with a different block size configured?

The reason I am asking is the following recent post from Kern Sibbald saying 
you will not be able to reuse tapes written with a different block size after 
you change it:

https://sourceforge.net/p/bacula/mailman/message/35871159/

> > 1. Is it safe (Bacula 7.XX) to set the block size to something other
> > than 64K?
> 
> Yes.  However, once you have written a tape with a given block size, you
> cannot changed the block size unless you re-initialized the tape.

What does "re-initialize" means here? I thought you cannot re-initialize a LTO 
format tape because of the servo tracks which are hardwritten during 
manufacturing.

Thanks,
Ivan

-- 
Ivan Adzhubey, Ph.D.
Instructor
Division of Genetics, Dept of Medicine
Brigham & Women's Hospital
Harvard Medical School
New Research Building, Room 0464C
77 Avenue Louis Pasteur
Boston, MA 02115
tel.: (617) 525-4728
fax:  (617) 525-4705
web: http://genetics.bwh.harvard.edu/wiki/sunyaevlab/



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