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System Administration: Week 10: Backups, Part I
In this video, we begin our discussion of backups by covering some core concepts and terminology, looking at full vs. incremental vs. differential backups and the difference between long-term storage and disaster recovery to recovery of files due to more localized data loss.
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New article out! Super in-depth, very furious manifesto. I get batted around. Join in the fun! Looks like it was a lot of work.
https://newdesigncongress.org/en/pub/who-will-remember-us-when-the-servers-go-dark/
RE: https://mas.to/@gabrielesvelto/116171755938331430
It is amazing that computers work at all.
One of my favorite research papers along these lines is "When the CRC and TCP checksum disagree": https://dl.acm.org/doi/10.1145/347059.347561
By looking at cases where the Ethernet CRC indicated no error, but the TCP checksum was invalid, the authors found a whole host of bugs in networking hardware, such as faulty DMA engines and buggy router memory.
Hardware data corruption is everywhere!
(There are no doubt newer studies, I'm just personally acquainted with one of the authors.)