Best practices for the simple placement of vmdk on multiple LUNS for vm

Only VMware has a recommendation to put several files vmdk to a single virtual machine on different LUNS?

I know it's possible, but is there any reference to it is not not a good idea for a particular reason? Is there loss of features or performance?

I don't think there is a right or wrong answer here regarding the placement of VMDK.  I agree with what others have said about her becomes more complicated when you across several data VMFS stores VMDK.  But having said that there are good reasons why you can spread them out.  You can store files to boot OS on disk volumes and slower data for servers in high performance like SQL and Exchange on a higher level of storage for example.

Another thing to keep in mind - if I remember correctly, by default a snapshot for a virtual machine with VMDK in several stores data is stored in the location where the first VMDK was created.  It is important to understand how snapshots can become very large, if you're not careful, and you could accidentally fill a LUN, and take a number of VMs.  I believe you can make a change to the VMX to change the location where the snapshot files are stored so you can look into that as well.

Tags: VMware

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