Re: Re: data recovery - recommendations & strategies

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> On Thu September 10 2020 15:49:21 BorgLabs - Kate Draven via tde-users 
wrote:
> > Sage advice. Advice I follow with redundancy.
> > I back up important stuff to a "backups" directory, then /home to another
> > internal drive, which is raided with another. Then to 2 external drives.
> >
> > I also make DVD backups.
> >
> > I lost data once, about 22 years ago. I had to start from scratch. Never
> > again.
> 
> I can't afford the time for DVD backups these days but a lot of
> our stuff is mirrored, plus sets of three rotating hard drive
> backups via rsync over ssh.  Your top risk factor then is human
> error.
> 
> An unfortunate young lady sysadmin in our group circa 1980
> mistyped a tar-pipe-tar disk-to-disk backup command pipeline
> and with the pipe buffer then being a fixed 4KB managed to
> truncate every file on the server to 4KB.  Took her several
> days to reinstall and reconfigure and recover from the weekly
> tape backup but she succeeded.
> 
> I once accidentally deleted the wrong LVM volume group when
> reorganizing our backup system.  After a screw-up like that
> it's important not to thrash around and possibly corrupt any
> deleted data.  After much studying and heartburn vgcfgrestore
> fixed things perfectly in an instant.
> 
> --Mike
> _______________________________________________
HUMANS? Mike, you need to spray for those.

Sounds like you have a good setup.

Me, however, I'm old fashioned. I don't believe in anything other than local 
backups drives (some redudants are stored off site for safety) and DVDs. I 
have a MASSIVE collection of DVDs books spanning back to 1995. I just popped 
one in from 96 and copied the data to an ssd, just to see if I could do it.

No school like old school.

But seriously Mike, spray for those humans. They have diseases.


Kate

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