>>>>> On Mon, 30 Apr 2007 10:29:18 -0400, Ryan Novosielski said: > > Deleting a disk volume will not mean that it will then reuse that > number, so you will have a blank spot if that media no longer exists. I > think this answers your question, but I'm not 100% certain what it was > to begin with. :)
Right. The only way to make the MediaIds contiguous would be to hack the counter back down to its previous value in the catalog. __Martin > > Mike Seda wrote: > > Thank you very much for the quick/great respsonses. ;-) The disk > > volume (required due to my lack of a second tape drive) introduces one > > more question... After I am done bcopying from the disk volume to the > > final duplicate tape volume, is it better to delete or disable the disk > > volume? I ask this since I would prefer my MediaIds to be contiguous. > > > > > > Martin Simmons wrote: > >>>>>>> On Sun, 29 Apr 2007 21:22:20 -0400, Mike Seda said: > >>>>>>> > >>> All, > >>> I want to duplicate a tape volume to another tape volume. Since I only > >>> have one tape drive, I must copy the tape volume to a disk volume and > >>> then copy the disk volume to a duplicate tape. > >>> > >>> Question # 1 > >>> If I ever need to bscan in the duplicate tape, I want the volume name to > >>> be that of the original input tape volume. Will bcopy accomplish this > >>> for me, or will the resulting duplicate tape volume name be that of the > >>> disk volume? > >>> > >> Neither -- bcopy never copies the volume label, so the label on the new > >> tape > >> will remain. The label on the disk volume is irrelevant. > >> > >> > >> > >>> Question # 2 > >>> The one thing that I do not like about bcopy is that it wants you to > >>> actually create the duplicate volumes in the catalog even though there > >>> will be no job records associated with these volumes. Since, I find this > >>> unnecessary and confusing, I am tempted to just use dd to accomplish my > >>> tape duplication task. Since bacula reads files in 32K buffers, I came > >>> up with the following dd command: > >>> dd if=/dev/nst0 of=<volume_name>.img ibs=32k > >>> Will the aforementioned dd command provide me a good dd image that I can > >>> subsequently write to a duplicate tape? > >>> > >> Maybe. A couple of things that will affect it: > >> > >> 1. The dd will stop at an eof marker on the tape. Bacula puts eof markers > >> between jobs and also every 1GB (by default). You'll probably need to > >> run > >> dd several times to different img file until it reports end of tape and > >> then the same number of calls to dd to write the new tape. > >> > >> 2. The default block size is variable, not 32K, unless you override that in > >> the configuration. I don't think you can duplicate variable block sizes > >> with dd. > >> > >> __Martin > >> > > > > > > ------------------------------------------------------------------------- > > This SF.net email is sponsored by DB2 Express > > Download DB2 Express C - the FREE version of DB2 express and take > > control of your XML. No limits. Just data. Click to get it now. > > http://sourceforge.net/powerbar/db2/ > > _______________________________________________ > > Bacula-users mailing list > > Bacula-users@lists.sourceforge.net > > https://lists.sourceforge.net/lists/listinfo/bacula-users ------------------------------------------------------------------------- This SF.net email is sponsored by DB2 Express Download DB2 Express C - the FREE version of DB2 express and take control of your XML. No limits. Just data. Click to get it now. http://sourceforge.net/powerbar/db2/ _______________________________________________ Bacula-users mailing list Bacula-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/bacula-users
