EMC XtremIO – Dedupe: Replace a VMAX?

XTremIO I am currently testing my EMC XtremIO PoC system with EMC.  One of the great benefits of XtremIO is the Deduplication feature, which at a minimum will be 10:1, so the experts tell me and will be even better in version 3.0.  My current Symmetrix VMAX configurations are 250TB and 350TB of tiered SSD, 15KFC and SATA storage for 2 sites.  So assuming a 10:1 dedupe ratio, could I replace my two Symmetrix VMAX solutions with two XtremIO systems of 2 X-bricks (with 20TB model)?  It almost seems too good to be true!  From a price perspective, the XtremIO cost would be slightly cheaper than the VMAX (after the highly combative process of vendor bashing, sorry – negotiation, in my region) and from a space perspective 1/3rd the size (with SAN Fabric).  No need to state the obvious about performance.

UPDATE: 10:1 is too good to be true, EMC experts tell me 1.x-2:1 is more realistic for business critical databases.  V3.0 will add compression, which will increase space efficiency by a small percentage also.  So hold your plans to drop spinning disks from your data center.

The picture below shows my VNX VG8 NAS Gateway with a 3 bay, 2 Engine Symmetrix VMAX 20K on the left (yes, I run entirely with NFSv3 and am 99% virtualised with vSphere 5.5 on Cisco UCS – I built my own vBlock!) and my XtremIO PoC system on the right (with two X-bricks, but can handle four 20TB X-bricks in the same rack).  Could this be my new motto?  “Spinning disks are a waste of space, flash is packed!”


Additional Resources

Published by


Chief Enterprise Architect and Strategist, 4xVCDX#133, NPX#8, DECM-EA.