On Fri, Nov 02, 2018 at 10:46:09AM -0700, Chris Miller wrote: > Hi Folks, > > I'm working carefully though " [ > https://www.zmanda.com/quick-backup-setup.html | The 15-Minute Backup > Solution ] " It is pretty good, but it confuses me a bit and it has raised > questions. > > I am in the first client setup section, "Iron". I'm configuring a "tapedev". > The pdf version references this as Section 5.1 and the HTML version doesn't > mention it at all. I am instructed to edit /etc/amanda/amanda-client.conf, in > particular I need to define "tapedev".When I was also told to do this on the > server for the time when I need to backup elements of the server. I have the > same questions in that context. > > So, I have a few questions: > > > * Why is this definition of "tapedev" in /etc/amanda/amanda-client.conf > mentioned in the PDF version, but not in the HTML version? Do I not need to > do this yet, or is this an oversight in the HTML version? > * Assuming that I do have to do this, am I designating capacity to stage > backups, or am I designating an interface of some kind through which backups > will flow? > > Now I'm confused about the behavior of AMANDA . I've read about "staging" > backups and how this is a good architecture, and to that end I have installed > a big disk in the AMANDA server, but it is not clear to me if this is a > benefit to me. I will be backing up to NAS, so if I stage my backups on the > server, I need to put everything on the net twice -- once from client to > server, and once from server to NAS. Couldn't I just tell the client, "Put > your backup there." and designate the appropriate NAS? > > I'm sure my questions are answered somewhere in some explanation of AMANDA > operations, but I haven't stumbled across this explanation yet, so if you > have one, I'd be most appreciative. > > Thanks for the help, > -- > Chris.
I think the 15 min install doc is dated and not or poorly maintained. amanda-client.conf is a "relatively" recent addition. In there tape-dev can be defined to allow recovery of backups on the client machine. You need to tell it the server and which device to recover from. For small installations like mine, it probably is not needed. And if you recover on the server then transfer to the client, it is not needed either. By staging, I presume you refer to the "holding disk". It does have several benefits, particularly if going to real tape. Amanda was developed for tape backup and later added "virtual tapes". You can backup directly to the storage device, but as tape drives can only handle one stream at a time, you can only be backing up 1 DLE. With a holding disk you can backup multiple DLEs simultaneously. Some sites use a separate network from the amanda server to the NAS. Jon -- Jon H. LaBadie [email protected] 11226 South Shore Rd. (703) 787-0688 (H) Reston, VA 20190 (703) 935-6720 (C)
