Dose nova support multiple disk device for a single VM?

Asked by Evan Li on 2013-05-28

I have some VMs that were VMware, and I want to move them to nova with kvm. Here I'm blocking by disk device. My VM requires two disk devices, but "nova boot" command accepts only one "--image" parameter.

So I wonder if nova has some method to create two disk devices on a single VM?

Question information

Language:
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Answered
For:
OpenStack Compute (nova) Edit question
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Last query:
2013-05-28
Last reply:
2015-12-29
Patrick Vinas (patrickvinas) said : #1

The only way I know of is to dd the second device to a nova-volume or cinder-volume block device, and use the block-device-mapping flag to attach the device to vdb (this is what I had to do when I was converting over from vmware).

apporc (appleorchard2000) said : #2

use --ephermal multi times or use --block-device multi times.

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