dump/restore on DAT

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1 total messages Started by Ivo Welch Tue, 29 Dec 1992 18:45

#2032

Author: Ivo Welch
Date: Tue, 29 Dec 1992 18:45

23 lines
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I own a WangDAT 1300, on which I do my occasional backups.

	[1] What is the probability that a dump is corrupted if I also
	create or delete a few files on the volume that I am dumping from?
	(I do not care about dumping these new files; I only care that
	the other files are restorable.) That is, I want to work while
	I backup.

	[2] Is there a dump verification program that tests for internal
	consistency (i.e. to detect if the problems mentioned in [1] may
	show up). I believe "restore t" does not seem to do it, because it
	only reads the first pass directory and file information, not the
	actual data information.

	[3] I currently use
		dump 1ufs /dev/rxt0 650000 /dev/rsd0a
	to backup. Is 650000 the correct number for a standard 90 minute
	DAT tape?

I'll post a summary. Thanks for any advice.

/ivo welch

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