RE: [SkunkworksAMA] OT question...

From: Andrew Priest <apriest_at_telus.net>
Date: Tue, 2 Jun 2015 22:50:48 -0700

I could not recommend a RAID 5 solution for the purpose of data protection. The dark side of RAID 5 is the data striping. Striping is done to improve performance, but it means that the individual drives are not accessible since your data is being spread out among all the drives. If something goes wrong, like 2 drives failing or even a rebuild going bad, you can lose the entire array.


 


My choice was a software snapshot RAID. Partly because I use it on drives where performance simply isn't a big deal, and I'm not changing things on them so often that I need real-time RAID. But also because it doesn't stripe and thus there is no scenario where losing one or two drives causes all drives to be unrecoverable.


 


One other note, if you decide to build a RAID array, try to not have every drive be from the same batch.
Received on Thu Jun 04 2015 - 22:46:35 CDT