OpenStack Compute (nova)

Concurrent multiple volume drivers

Asked by Chia-Feng Kang

Dear all,

How can I configured nova volume to support multiple volume drivers running at the same time on nova volume site?

Shall I modify nova volume manager architecture to support the function?

Based on my study, the libvirt_volume_drivers on nova compute site seems to support different nova volume connection by implementing "initialize_connection()".

This function is used to decide "volume_driver_type" on demand in the "volume-attach" event.

Any suggestions are welcomed.

Respectfully,

Chia-Feng Kang
CCMA/ ITRI/ TW

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yashiang (yashiang1986) said : 		#1

This is an interesting and important idea...
I also have the same requirement.

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Armando Migliaccio (armando-migliaccio) said : 		#2

As far as nova-volume is concerned, you can't do this today. Bear in mind that nova-volume is going to be replaced by https://launchpad.net/cinder, so to get your requirement addressed, please redirect your question there.

Hope this help!
Armando

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John Garbutt (johngarbutt) said : 		#3

I think you just use volume-groups to separate them, but as Armando mentioned, cinder is the way forward.

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