Chris's Wiki :: blog/sysadmin/BackupsVsRedundancy Commentshttps://utcc.utoronto.ca/~cks/space/blog/sysadmin/BackupsVsRedundancy?atomcommentsDWiki2009-05-26T15:03:53ZRecent comments in Chris's Wiki :: blog/sysadmin/BackupsVsRedundancy.From 192.88.212.34 on /blog/sysadmin/BackupsVsRedundancytag:CSpace:blog/sysadmin/BackupsVsRedundancy:4d1744013566ab74bcb14460df3118c71458d892From 192.88.212.34<div class="wikitext"><p>I had a client once tell me he didn't need backups for his mysql database because he had set up replication. He was so proud of its elaborateness, claimed that the data sync was always within a few seconds even though the replicated db was hundreds of miles from the master. </p>
<p>"A few seconds?", I say.
"Absolutely."
"How long do you think it would take a 'drop table users' to replicate?"
-silence-</p>
<p>He has since implemented a sensible backup solution.</p>
</div>2009-05-26T15:03:53ZFrom 83.145.204.27 on /blog/sysadmin/BackupsVsRedundancytag:CSpace:blog/sysadmin/BackupsVsRedundancy:6664b6e0679c8a42185839e0eb3329cf19d7c2e9From 83.145.204.27<div class="wikitext"><p>Right.</p>
<p>But there are still plenty of people who do <em>not</em> know this. You can read almost daily about incidents that have happened even in relatively large data centers because of the false premises involving RAID and backups.</p>
<p>[irony]
Sometimes I think the world would be a better place without the whole invention of Redundant Array of <em>Inexpensive</em> Disks (Patterson et. al. 1988).
[/irony]</p>
<p>- j.</p>
</div>2009-05-26T06:30:23Z