Reply to post: X-IO's CADP

How do you identify I/O hotspots and how do you address them?

Chris Mellor 1

X-IO's CADP

X-IO has its Continuous Adaptive Data Placement technology (CADP) to identify sub-LUN hotspots on disk and move them into the SSD storage tier in its Hyper ISE and Hyper ISE 7 products. Hybrid flash array vendors can do tiering as well. IMHO the smaller the chunk of data the quicker it is to move it across storage tiers and/or into cache but the more data activity tracking there has to be.

Compellent with its move to a 64-bit O/S from its 32-bit forebear seemed to be positioned to track access levels on small chunks of data but hasn't announced any increase in tiering speed or granularity.

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