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photon · 08-17-2012, 01:14 PM

For SSDs it's writes that are limited, reads are fine forever (in fact when an SSD finally "runs out of writes" it'll become a read only device

)

I don't think RAID 0 or RAID 1 would have a negative impact since the # of writes is going to be the same regardless (ignoring the fact that mirroring will use up two drives' worth of writes twice as fast as striping). The only change is with mirroring the data gets written on 2 different drives (incurring the same # of writes on each of 2 drives as a single drive) or with striping half the data is getting written to 2 different drives (incurring the same # of writes on both of 2 drives as a single drive).

Only in RAID 5 or similar where extra parity data is being written could I see RAID having a negative impact on drive life.

Unless I'm missing something about RAID that's going to increase the # of writes or increase write amplification.

08-17-2012, 01:14 PM	#18
photon The new goggles also do nothing. Join Date: Oct 2001 Location: Calgary Exp:	For SSDs it's writes that are limited, reads are fine forever (in fact when an SSD finally "runs out of writes" it'll become a read only device ) I don't think RAID 0 or RAID 1 would have a negative impact since the # of writes is going to be the same regardless (ignoring the fact that mirroring will use up two drives' worth of writes twice as fast as striping). The only change is with mirroring the data gets written on 2 different drives (incurring the same # of writes on each of 2 drives as a single drive) or with striping half the data is getting written to 2 different drives (incurring the same # of writes on both of 2 drives as a single drive). Only in RAID 5 or similar where extra parity data is being written could I see RAID having a negative impact on drive life. Unless I'm missing something about RAID that's going to increase the # of writes or increase write amplification. __________________ Uncertainty is an uncomfortable position. But certainty is an absurd one.