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IDE Vs SCSI under Virtual Server |
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Tuesday, 07 February 2006
by Michel Roth
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There has been some confusion over when users should use SCSI or IDE virtual hard disk inside of their virtual machines. Contrary to common sense, the performance of our emulated SCSI controller is slower than that of our emulated IDE controller. The reason for this is that the SCSI controller is a lot more complicated to emulate than the IDE controller. Now - this changes once you have Virtual Machine Additions installed. As part of Virtual Machine Additions we install an accelerated SCSI driver. Once this driver is installed the performance of our emulated SCSI controller is significantly faster than our emulated IDE controller.
Read the whole article here.
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