Date: Wed, 15 Sep 1999 11:10:38 +0100 From: Adam Nealis <adamn@csl.com> To: Christian Weisgerber <naddy@mips.rhein-neckar.de> Cc: freebsd-questions@FreeBSD.ORG Subject: Re: Tape backups Message-ID: <37DF709E.1A34C65A@csl.com> References: <4.1.19990914142612.0094da30@unix01.voicenet.com> <7rmkqe$7o5$1@bigeye.rhein-neckar.de>
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Christian Weisgerber wrote: > > John <papalia@UDel.Edu> wrote: > > > My boss hit me with this question, and I'm not sure of the answer. We are > > looking at buying 5 new servers, all of which will be configured (my > > byself.... *gulp*) to run FBSD. In an effort to save $$$, he wants to omit > > tape drives from each server, and instead get one server with a > > tape-changer in it. > > Very reasonable. Make sure the tape changer works with FreeBSD. I > have no experience in this area, but I'd be wary of solutions > requiring proprietary drivers etc. > > > I'm assuming that this will be possible to do using dumps over > > NFS, however I was hoping for some confirmation from someone with > > more experience in this? > > You can't do dumps over NFS. Instead, you run the dump locally and sent > its output over the net. In fact, dump itself supports writing to > user@host:device. Otherwise you can dump to standard output, pipe into > rsh, and continue from there. The same for restore, just in reverse. > > Also, if you backup a small group of hosts on a central server, you > might want to look into Amanda (ports/misc/amanda24), which very nicely > helps to automate this kind of thing--including support for tape > changers. Seconded. Amanda is pretty good for this sort of thing. I used to use amanda with a HP 12000E i.e. 6xDDS2 DAT autochanger, but it was too unreliable. Instead I've invested in a HP DLT 70 - this holds up to 70GB per tape, more if you were to use amanda's facility of gzipping dumpsets. I get a write to tape throughput of approx 2700KB/s. Adam. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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