You can use solid-state drives for an even bigger boost in performance - if you can afford it. Use a 7200 RPM or better disk that supports the fastest available transfer speeds on the bus you're using (SATA 6.0 GB/sec, for instance). That means there's all the more need for the disk to be fast. Instead of working with a file on a disk that's managed by the host, the VM works directly with a disk. Passthrough disks enhance VM performance by omitting a layer of abstraction in the file system. If you're going to use passthrough disks for VMs that support virtual desktops, here are some pointers to get the most out of the technology. To run VMs on the machine on which I'm typing, I had to spend the money to get a whopping 8 SATA ports. For instance, servers are designed to support more physical disks than desktop machines by default. They can improve VM performance but also come with some challenges in a virtual desktop environment. For secondary drive, under Device 1, select DMA (if available) for Transfer Mode.Passthrough disks connect to the virtual machine (VM) and serve as a storage source with an existing file system and disk file format. To enable master drive, under Device 0, select DMA (if available) for Transfer Mode. For CD-ROM, CD-R/RW and DVD-ROM drives, right-click Secondary IDE Channel and select Properties.Ħ. For hard disk drive, right-click Primary IDE Channel and select Properties. Click to expand IDE ATA ATAPI Controllers.Ĥ. Click the Hardware tab and click Device Manager.ģ. Click Start, right-click My Computer and click Properties.Ģ. For secondary drive, under Device 1, select DMA (if available) for Transfer Mode.ġ.
For CD-ROM, CD-R/RW and DVD-ROM drives, right-click Secondary IDE Channel and select Properties.Ĩ. Click to expand IDE ATA ATAPI Controllers.Ħ. Right-click on the necessary drive and click Properties.ĥ.
For CD-ROM, CD-R/RW and DVD-ROM drives, click to expand CD-ROM.ĥ. For hard disk drive, click to expand Disk Drive. * In Windows 98 and Windows Me environmentĤ. To do so, please follow the steps below in the respective Windows environment. How to enable the DMA settings of a hard disk drive, CD-ROM, CD-R/RW and DVD-ROM drive?Įnabling the DMA can reduce work load to the CPU.
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