|brent timothy saner on 24 Aug 2016 09:02:22 -0700|
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|Re: [PLUG] epiphany or stupidity?|
On 08/24/2016 11:56 AM, Tone Montone wrote: > I was running last night, and for some reason, I had an idea about > backups. It occurred to me that if I had 100 Red Hat systems, all > running the same OS and Patch level, would I need full backups on all > the systems. Wouldn't there be static information like executables that > would be the same across all systems? So instead of doing fulls x 100, > I could do a full x 1, then just differentials or incrementals on the > others, thereby reducing total storage required on tapes. you don't even need the OS, really. just keep an ISO around and a list of the packages you installed explicitly (post-install) in a list that's parseable/iterable. let the package manager handle the rest. (plus the mutable info, like /home, /etc, /root. /var if you want it. etc.) > Then I thought if I took the same idea and applied it to the SAN > storage, could I have fixed images that the systems run on, and only > require 1 instance of it, thereby reducing total storage space requirements. you'd have to futz with the init system to get a bunch of mounts in place that "overlay" the / filesystem, but i don't see why not. it's not what i'd consider the most stable, perhaps, though.
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