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Virtualization best practices

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Operating Systems Linux Virtualization best practices
# 1  
Old 05-27-2013
Virtualization best practices
Hello admins and gurus

I have a controversial topic: now we are investing in a new Linux OS that will hold our Sybase database. The server will virtualized on a VMware server hosted on SAN storage. Now the question is, when we install the database engine is it better - in terms of performance - to put the data files on a separate LUN and connect to it through fiber channel or to create a virtual disk and attach it "locally" to the virtual server as if it was one of it's disks and put the datafiles on it?
In other words, in a virtual word is it better to attach a virtual disk or to connect to a separate LUN provided that both of them are on SAN?
# 2  
Old 05-28-2013
More software, how does that ever get faster I/O?
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