Reply to post: Still using eMLCs?

Storage BLOG-OFF: HP's Johnson squares up to EMC's Chad Sakac


Still using eMLCs?

HP 3PAR Employee


Is it the ground up design of XtremIO that forces it use eMLC, just like its VNX/VMAX brethren. If it hasn't figured out a friendly way to work with flash, I'd submit it is as legacy an architecture as the rest of EMC portfolio in some sense.

On performance, if XtremIO indeed delivers 500 micro-seconds (for what workload?), it would make it one of the slowest AFAs. By contrast, 3PAR 7450 can deliver as low as 200 micro-seconds for single threaded writes, and routinely delivers less than 500 micro-secs of latency for multi-tenant workloads.

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