-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 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. :)
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 - -- ---- _ _ _ _ ___ _ _ _ |Y#| | | |\/| | \ |\ | | |Ryan Novosielski - Systems Programmer III |$&| |__| | | |__/ | \| _| |[EMAIL PROTECTED] - 973/972.0922 (2-0922) \__/ Univ. of Med. and Dent.|IST/AST - NJMS Medical Science Bldg - C630 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.5 (MingW32) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org iD8DBQFGNf09mb+gadEcsb4RAvv/AJ9dg9sElOv5jR3uN+v2n8b30ccqVACglMYJ OWN4QzXOoWwgEk/3fEOCAn0= =3t6/ -----END PGP SIGNATURE----- ------------------------------------------------------------------------- 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
