I forgot one thing: Set up a shell script to do a simple diagnostic on both systems to detect a failed or failing system. Run two or three times a day.
md > On 03/08/2021 9:56 PM jonhal...@comcast.net wrote: > > > I will suggest something and let people rip it apart: > > Get two RPis that have at least USB 2.0 Attach two large capacity disks > to each one in a RAID-1 configuration (also known as "mirroring") to keep it > simple. If one disk fails the other will still keep working (but you should > replace it as soon as possible). > > Put all of your data on both systems. > > Take one of your systems to a friends or relatives house who you trust > that has relatively good WiFi. Make sure the friend is relatively close, but > is not in the same flood plain or fire area you are. > > Do an rsync every night to keep them in sync. > > Help your friend/relative do the same thing, keeping a copy of their data > in your house. If your disks are big enough you could share systems and > disks. > > Use encryption as you wish. > > Disk failure? Replace the disk and the data will be replicated. > Fire, theft, earthquake? Take the replaced system over to your > friends/relatives and copy the data at high speed, then take the copied > system back to your house and start using it again. > > You would need three disks to fail at relatively the same time to lose > your data. Or an asteroid crashing that wipes out all life on the planet. > Unlikely. > > Realize that nothing is forever. > > md > > > > On 03/08/2021 7:33 PM Bruce Labitt <bdlab...@gmail.com> > wrote: > > > > > > For the second time in 3 months I have had a computer failure. > > Oddly, it was a PS on the motherboard both times. (Two different MB's.) > > Fortunately the disks were ok. I'm living on borrowed time. Next time, I > > may not be that lucky. > > > > Need a file server system with some sort of RAID redundancy. I > > want to backup 2 main computers, plus photos. Maybe this RPI4 too, since > > that's what I'm running on, due to the second failure. If this SSD goes, > > I'm gonna be a sad puppy. This is for home use, so we are not talking > > Exabytes. I'm thinking about 2-4TB of RAID. Unless of course, RAID is > > obsolete these days. Honestly, I find some of the levels of RAID > > confusing. I want something that will survive a disk failure (or two) out > > of the array. Have any ideas, or can you point me to some place that > > discusses this somewhat intelligently? > > > > Are there reasonable systems that one can put together oneself > > these days? Can I repurpose an older PC for this purpose? Or an RPI4? > > What are the gotchas of going this way? > > > > I want to be able to set up a daily rsync or equivalent so we will > > lose as little as possible. At the moment, I'm not thinking about > > surviving fire or disaster. Maybe I should, but I suspect the costs > > balloon considerably. I do not want to backup to the cloud because, plain > > and simple, I don't trust it to be fully secure. > > > > Thanks for any and all suggestions. > > _______________________________________________ > > gnhlug-discuss mailing list > > gnhlug-discuss@mail.gnhlug.org > > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ > > > > > _______________________________________________ > gnhlug-discuss mailing list > gnhlug-discuss@mail.gnhlug.org > http://mail.gnhlug.org/mailman/listinfo/gnhlug-discuss/ >
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