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Typically people use RAID or ZFS to prevent data loss when a few hdds fail.
by fxtentacle 5y ago
Typically people use RAID or ZFS to prevent data loss when a few hdds fail.
- dekhn 5y agoOK, so basically you're in a completely different class of expectations about how systems perform under disk loss and heavy load then me. A drive array is very different from large-scale cloud storage.
- fxtentacle 5y agoHard to say. My impression is: - A large ZFS pool of SSDs is much faster than any cloud storage. - Cloud storage failed much more often than the SSDs in our pool. - "Noisy neighbor" is an issue on the cloud
- qorrect 5y agoThis cracked me up. Thanks fxtentacle :D.
- dekhn 5y agoof course, the reason that's wrong is that if one drive fails you don't have a 56pb storage system, you have something smaller because of redundancy. That redundancy, and the performance that scales due to it, place cloud services in an entirely different class from on prem servers.