vmware虚拟化市场占有率报告

93% of Forrester’s respondents have at least 1 VMware ESX host What study measures/projects: • Penetration today – whether a product is present or not How it compares to our study: • Forrester only measuring presence of a product, not the same as our study. • Percentages add up to over 100% because many customers have more than 1 product • Forrester report had smaller sample (104 web survey respondents)
“As of mid-2010, at least 85% of installed VMs are VMware-based” What study measures/projects: • VM install base 2009 / today • Projections for 2012 How it compares to our study: • Gartner measuring install base – same as our study. But Gartner only estimates for VMs - we measure hosts and VMs • Gartner not transparent about their methodology, unclear how they are making their projections
1 Forrester Research - Storage Choices For Virtual Server Environments, Q1 2011 2 Gartner Datacenter Conference 2010 : Server Virtualization: From Virtual Machines to Clouds 3 IDC Server Virtualization Tracker Q3 2010 : New Server Shipments Virtualized
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Confidential – INTERNAL USE ONLY
How Our Research is Same/Different Than Other Sources
Gartner
Recent Bittman Projections1
Forrester
Recent Virtualization Report2
IDCHale Waihona Puke Baidu
Quarterly Server Virtualization Tracker3
VMware accounted for 51% of new virtualized servers shipped in Q3’10 What study measures: • New server shipments virtualized each quarter How it compares to our study: • IDC only measuring new shipments each quarter – cumulative sum over many quarters could be proxy for install base • Pro: Can be better snapshot of what’s happening now (but, we have concerns about IDC’s methodology) • Con: Does not indicate actual deployment, just that product shipped