On Wed, 18 Mar 2020 10:47:12 -0400, Rich Freeman wrote: > > If you rely on raid, and use spinning rust, DON'T buy cheap drives. I > > like Seagate, and bought myself Barracudas. Big mistake. Next time > > round, I bought Ironwolves. Hopefully that system will soon be up and > > running, and I'll see whether that was a good choice :-) > > Can you elaborate on what the mistake was? Backblaze hasn't found > Seagate to really be any better/worse than anything else. It seems > like every vendor has a really bad model every couple of years. Maybe > the more expensive drive will last longer, but you're paying a hefty > premium. It might be cheaper to just get three drives with 3x > redundancy than two super-expensive ones with 2x redundancy.
I know it's anecdotal, and I have somewhat fewer drives than Backblaze, but I've found Seagate drives to be unreliable over recent years. They were good at replacing them under warranty, but then the replacements failed. > The main issues I've seen with RAID are: > > 1. Double failures. If your RAID doesn't accommodate double failures > (RAID6/etc) then you have to consider the time required to replace a > drive and rebuild the array. As arrays get large or if you aren't > super-quick with replacements then you have more risk of double > failures. There's also the extra load on the remaining drives when rebuilding the array, at exactly the time you cannot afford another drive to fail. RAID6 helps here and, like Mark, I try to run a mixture of drives in an array to avoid problems caused by bad models or batches. -- Neil Bothwick You are a completely unique individual, just like everybody else.
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