Date: Sat, 29 Dec 2001 18:44:04 +0100 (CET) From: Konrad Heuer <kheuer@gwdu60.gwdg.de> To: Sam Drinkard <sam@wa4phy.net> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Dump Device? Message-ID: <20011229183907.M30937-100000@gwdu60.gwdg.de> In-Reply-To: <3C2DFE32.19E61C8B@vortex.wa4phy.net>
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On Sat, 29 Dec 2001, Sam Drinkard wrote: > Having figured out bad tapes were blowing up any type of tape activity, > I now question *which* dump device is proper to use. Have read all the > stuff on dump, and the handbook entries about backups. Is it proper to > use /dev/nrsa0, /dev/sa0, or what? Does it really matter ? /dev/nsa0 will not rewind, /dev/sa0 will rewind before writing; /dev/rsa0 and /dev/nrsa0 are raw devices for byte-oriented i/o, while /dev/sa0 and /dev/nsa0 are block devices for block oriented i/o. Thus, you should /dev/sa0 or /dev/nsa0 with dump, depending on your wish to rewind or not before writing begins. For non-rewinding tape operations, you should take a look at the the mt utility for tape control. Best wishes Konrad Heuer Personal Bookmarks: Gesellschaft f=FCr wissenschaftliche Datenverarbeitung mbH G=D6ttingen http://www.freebsd.org Am Fa=DFberg, D-37077 G=D6ttingen http://www.daemonnews.o= rg Deutschland (Germany) kheuer@gwdu60.gwdg.de To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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