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Does RAID1 increase performance with Linux mdadm?
Fresh5 days ago
Mar 15, 202628946 viewsConfidence Score0%
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Problem
I have a cheap 2-bay NAS with a 2TB HDD. To be robust against disk failure, I'm thinking of buying a second 2TB HDD and putting it in RAID1 with Linux mdadm. The file system is ext4. Will this increase or decrease the performance of the NAS? What about just read or write performance? There seem to …
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Fix for: Does RAID1 increase performance with Linux mdadm?
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Yes, Linux implementation of RAID1 speeds up disk read operations by a factor of two as long as two separate disk read operations are performed at the same time. That means reading one 10GB file won't be any faster on RAID1 than on a single disk, bu…
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