Micron M510DC (480GB) Enterprise SATA SSD Review
by Kristian Vättö on July 21, 2015 8:00 AM EST4KB Random Read
With 4KB random writes and mixed workloads out of the way, that leaves us with only pure random reads remaining. The test is a two-hour span and the results correspond to an average of the last 500 seconds of the run.
In random read performance, the difference between SATA drives is negligible. At best the difference is 10%, but between most drives we are looking at less than 5%.
At QD8 and QD16 the difference is a bit larger and not in favor of the M510DC. The EVO does deliver better performance in this case, but not substantially.
There aren't major differences in consistency either and only the S3700 has a notable lead in this area.
The M510DC isn't as power efficient as I would like it to be because it's outperformed by the EVOs again. It's not a significant margin, but with better performance and efficiency the EVO is turning out to be a better drive for read workloads.
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Kristian Vättö - Tuesday, July 21, 2015 - link
The endurance rating is basically the warranty for the drive, so it's a quite practical measure. If the drive fails before exceeding the rating, then you are eligible for replacements.nils_ - Friday, July 24, 2015 - link
It's a bit pointless to have a warranty on DC hardware if you have to send in your broken drive to get a replacement, since you're supposed to destroy it.Kristian Vättö - Sunday, July 26, 2015 - link
I'm not sure how exactly enterprise warranties work, but I would expect them to be more flexible given that the customers often do business worth of at least hundreds of thousands of dollars. Besides, with encryption the data is safe even when sent to the manufacturer.toyotabedzrock - Wednesday, July 22, 2015 - link
The 845dc pro was not in the mixed workload.Rekkx - Wednesday, July 22, 2015 - link
The problem with the Samsung 845DC (EVO and Pro) is that it is already EOL.andjohn2000 - Wednesday, July 22, 2015 - link
Micron SSD is not reliable and can easily corrupt the dataZeDestructor - Friday, July 24, 2015 - link
Source? Cause I've seen nothing that indicates they're any better or worse than the comnpetition.ZeDestructor - Friday, July 24, 2015 - link
SandForce SF-2281 excepted....velanapontinha - Friday, July 24, 2015 - link
Hi, Kristian.Long time reader, here (since '98, I think), shy poster, though.
I wonder if you guys would consider evaluating real-life endurance in enterprise SSDs. Much like this:
http://blog.innovaengineering.co.uk/
Cheers,
Fernando
Kristian Vättö - Sunday, July 26, 2015 - link
The problem with evaluating endurance, especially on enterprise drives, is that by the time we have any useful data to show the drives are already obsolete. A sample size of one isn't enough either for any statistical analysis, so to really test endurance in real world we would need our own mini data center with hundreds of drives to get sufficient amount of data.