[Discuss] Recovering a corrupted usb hard drive with XFS

[gaf.linux at gmail.com (Jerry Feldman)]

For backups, I prefer snapshot backups such as rsnapshot or Back in time,
both use rsync underneath so duplicates are simply hard links

--
Jerry Feldman <gaf.linux at gmail.com>
Boston Linux and Unix http://www.blu.org

On Thu, May 16, 2024, 2:17?PM Steve Litt <slitt at troubleshooters.com> wrote:

> Kent Borg said on Wed, 15 May 2024 16:21:24 -0700
>
> >On 5/15/24 15:44, John Abreau wrote:
> >> my other disks were close
> >> to full when I purchased the 18TB disk. To back it up, I'd need to
> >> purchase yet another disk
> >
> >Indeed.
> >
> >I once heard as a metaphor* that a circus needs at least two
> >elephants, because if one dies, it will require the second elephant
> >haul away the first one. You have only one elephant.
> >
> >
> >I'm so old that 18TB seems big to me. That's so much data that backing
> >it up by ANY means is very non-trivial. Even if the disk could spit
> >data at the maximum "super speed" of USB 3.0, isn't that still
> >something like 10-hours just to fit so much data through the wire?
>
> The first time, yes. After that, using rsync for the backups takes only
> a few minutes, depending on how many files have changed since the last
> rsync.
>
> On another note, I'm disturbed with the OP's statement that he won't
> buy another 18GB disk for another year. Until he does, his 18GB remains
> a single point of failure. Currently quality, non-seagate 18GB 7200RPM
> drives cost under $300.00. Is the data worth less than $300.00? If so,
> why are we even discussing this? If not, why not adjust the budget: Use
> instant coffee instead of Starbucks et. al, eat out one time less per
> week for 30 weeks, trade steak and fish for rice and beans for a month
> or so. Drink from the tap instead of bottled water, quit alcohol and/or
> cigarettes if they play into the budget, forego entertainment for a
> month. Work a few hours overtime if that's possible.
>
> Computing isn't cheap. It can be made cheaper by using older equipment
> and lean Linux/BSD setups, but parts and storage have a finite cost.
>
> SteveT
>
> Steve Litt
>
> Autumn 2023 featured book: Rapid Learning for the 21st Century
> http://www.troubleshooters.com/rl21
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