Recent content by John L

It's like you're trying to make my point. Where the drive keeps reporting to the controller that everything is fine, the controller will not degrade the array. RAID 1 will not protect you from the very thing you just described.

SSDs in any number of configurations will have different Annualized Failure Rates, even if they were 100% consistent in P/Es to the single cell. Citing non-RAID 1 experience of drives failing at different times does not indicate that there is a high distribution in failure times. The only...

Was the server with the single failed drive using SSDs? The technology for HDDs and SSDs is fundamentally different. The standard distributions around MTBF for spinning disk is wildly greater than SSDs. Applying HDD experience to SSDs is wrong. Also, what was wrong with your array controller...

Sure the poster may have made a decision, but 1. He can change his mind, and 2. Other people will see this thread, because that is how the internet works. Again, I'm not saying that you shouldn't plan for drive failure, only that RAID 1 does not provide that protection. Some of the failures...

The reason not to use RAID 1 isn't that SSDs don't fail. The reason not to use RAID 1 is that SSDs consistently fail the same way, at the same number of duty cycles. A functional RAID 1 guarantees that you're putting the exact same number of duty cycles on both drives! Congrats, you've borked...