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Topic Title: Is my VM only emulating an ATA disk?
Topic Summary: Disk benchmark performance is real bad, suspect NCQ ATA.
Created On: 01/18/2007 05:25 PM

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01/18/2007 05:25 PM
mweber Apprentice Posts: 26 Joined: 11/17/2006	I managed to get a capture of the POST of my VM (I would show it here but the forum does not accept files) and it seems to find some ATA drives. ATA typically does not accept disk IO queue greater than 1. My diskbenchmarking is showing bad results, and the storage array never sees this server push a higher disk queue depth than 1. How do I set my VM to emulate SCSI? I have the VM tools installed, (I would post a picture of that but the forum does not accept files). Under summary for the VM the vmtools revision is 3.2.9.29...... Help.
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01/18/2007 05:50 PM
cbarclay Fellow Posts: 216 Joined: 04/28/2006	Please use the support process to report product issues. VSTools provides accelerated IO for virtual servers. In Linux, disks look like IDE drives (regardless of the type of underlying storage). In Windows, disks look like SCSI drives (again, regardless of the type of underlying storage). Edited: 01/18/2007 at 05:52 PM by cbarclay
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