Corrupted data probability on md RAID vs. ZFS raid - real experiences
Proxmox staff mention:
mdraid has zero checks for bitrot, data integrity, and most filesystems on top do not provide that either. That means, if some data gets corrupted, which happens on any long-running system sooner or later, and you normally do not notice until it's too late.
I have few dedicated servers running without OS reinstallation 3+ years w md soft raid (R1 or R10) boot root and home partitions and do not remember case when this happened ever:
some data gets corrupted, which happens on any long-running system sooner or later
I would wonder on providers real experiences, opinions, recommendations on this matter.
It is an exaggerated paranoid vision regarding the error rate of md raid?
Or really haves anyone such bad experiences happened and really is there great reason&advantage for use ZFS raid? (when we speak and consider possible md raid error data getting, i do not discuss now about other ZFS advantages (Copy-on-write clone, can use SSD for cache etc.))
should i expect really significant data error disaster when will run several production high-load servers on md as they predict?
(btw: also I do not ask especially that is good install Proxmox on ZFS partitions (there i assume sure yes), but mean it generally ZFS for no-proxmox host node where is no HW raid/controller presented, say LAMP server or database server etc.)
Thanks! for all relevant experiences sharing, opinions, and useful recommendations in advance
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