Questions tagged [raw-disk]

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Is there a way to enable direct i/o in virtualbox when connecting to a raw disk in linux?

I found instructions on how to create a virtual disk for use with virtualbox that points to a raw block device. You can't do it from the ui, but you can do it from the command line: VBoxManage ...
Stu's user avatar
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KVM raw disk has comparable write, slow read

I first ran fio tests, and apparently my write speed is basically 90%, but my read speed is 40%. Here is my xml file: <emulator>/usr/bin/qemu-system-x86_64</emulator> <disk type='file' ...
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poor performance with vmdk mounted as loop device even after conversion to raw

Edit 13/12/12 - At this stage it would appear to be related to Western Digital (and possibly others) Advanced Format 4K block sizes. This link goes some way into describing the issue, however the ...
jelloir's user avatar
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VMware ESXi RDM Shared Disk and Multipathing

I have set up a RAW mapped storage device which is shared between 3 VMs. In the guest OSs the disk shows up fine but when I try to set up multipathing I can only see one path. In the virtual machine ...
Cobra Kai Dojo's user avatar