I doubt it's 10:1
We just got a VMAX (if you want to annoy your EMC engineers, tell them the VMAX is a CX5)
Our calculations at order said we only need 8 SSD drives - the rest are a mix of 140 and 300GB 15k
We just got a VMAX (if you want to annoy your EMC engineers, tell them the VMAX is a CX5)
Our calculations at order said we only need 8 SSD drives - the rest are a mix of 140 and 300GB 15k
Not!
You postulate an STEC ZeusIOPS at $220 - that's less than most 15K rpm HDDs these days. I can't provide actual pricing, but I can confirm that a ZeusIOPS costs a multiple of the cost of an 15K HDD, not a fraction. You might want to adjust and revisit your maths.
Sent to me: -- A single, 73GB ZeusIOPS SSD costs about $10,000 for system-integrators. They're about $14,000.00 each for end-users. Not anywhere near $220. See:-
http://www.google.com/products?q=stec+73gb&hl=en
Next to consider, take STEC's performance claims and multiply them by 0.12 to get the actual number of IOPS they do in an audited benchmark (!)
-- STEC Claim = 45,000 IOPS/SSD - http://www.stec-inc.com/products/zeus/Zeus-IOPS-Solid-State-Drive.php
-- SPC-1 Actual = 5,600 IOPS/SSD - http://www.storageperformance.org/spc-1ce_results/IBM/e00001_IBM_EXP12S-SSD/e00001_IBM_EXP12S-SSD_SPC1CE-executive-summary.pdf
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The pricing above would suggest 2,200 ZeusIOPS shipped this year ($220m/$10k) which is a rivial loss to FC HDD suppliers if there is a 1:1 replacement ratio. A 10:1 HDD replacement ratio would say 22,000 fast HDD sales were lost - which is still relatively trivial. A 100:1 replacement ratio would mean 220,000 HDD sales were lost - which starts looking interesting.
Chris.