Date: Mon, 26 Nov 2001 13:24:03 +0100 From: "Anthony Atkielski" <anthony@freebie.atkielski.com> To: "Jan Grant" <Jan.Grant@bristol.ac.uk> Cc: "Scott Mitchell" <scott.mitchell@mail.com>, "Wilko Bulte" <wkb@freebie.xs4all.nl>, "FreeBSD Questions" <freebsd-questions@FreeBSD.ORG> Subject: Re: Time for my first backup, how do I install a DDS drive?? Message-ID: <009d01c17675$3cf20630$0a00000a@atkielski.com> References: <Pine.GSO.4.31.0111261128190.101-100000@mail.ilrt.bris.ac.uk>
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Is there any equivalent to the NTBackup option that verifies an entire backup immediately after it is written? ----- Original Message ----- From: "Jan Grant" <Jan.Grant@bristol.ac.uk> To: "Anthony Atkielski" <anthony@freebie.atkielski.com> Cc: "Scott Mitchell" <scott.mitchell@mail.com>; "Wilko Bulte" <wkb@freebie.xs4all.nl>; "FreeBSD Questions" <freebsd-questions@FreeBSD.ORG> Sent: Monday, November 26, 2001 12:33 Subject: Re: Time for my first backup, how do I install a DDS drive?? > On Sun, 25 Nov 2001, Anthony Atkielski wrote: > > > Wilko hit the problem in a separate e-mail: I had to have a tape in > > the drive! Now I'm full of nostalgia--I haven't had to worry about > > actually mounting tapes on drives since the days when the tape was > > on an open reel! > > > > Anyway, once I put a tape in the drive, the mt command worked fine. > > Now I need to try my first backup. > > > > Some questions that I couldn't find clear answers for, though: > > > > 1. Will dump backup files that are locked by readers? What about > > files locked by writers? > > Yes, and yes. All file locks are advisory, pretty much; this is in > contrast to NT (where you get the problems you mention). > > > 2. If the answer to question 1 is "no," how can I backup the root > > filesystem or other filesystems that always have some files > > allocated to someone? > > Well, you _can_ just dump them. It depends on what files are open, and > by what; if you've got a database in a non-quiescent state you might > want to switch it to journalling-only mode for the duration of the > backup (or whatever the procedure is for hot backups) and switch it back > afterwards. > > The trick to this is to try some restores while you're getting this > worked out (to make sure everything you expect to be restored is) - you > don't need to restore directly to the root, you can stick a copy > somewhere. And, of course, to run periodic random restores to ensure > everything is working.* > > jan > > * You don't need to be told this, of course, but it's worth saying > anyway. > > -- > jan grant, ILRT, University of Bristol. http://www.ilrt.bris.ac.uk/ > Tel +44(0)117 9287088 Fax +44 (0)117 9287112 RFC822 jan.grant@bris.ac.uk > Theoremhood is positively decidable. > It just takes time at least exponential in the length of the proof. > > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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