Hi,all

     In the Cinder repository, I noticed that the BlockDeviceDriver driver is 
being deprecated, and was eventually be removed with the Queens release.


https://github.com/openstack/cinder/blob/stable/ocata/cinder/volume/drivers/block_device.py


In my use case, the instances using Cinder perform intense I/O, thus iSCSI or 
LVM is not a viable option - benchmarked them several times, since Juno, 
unsatisfactory results.For data processing scenarios is always better to use 
local storage than any SAN/NAS solution.


So I felt a great need to know why we deprecated it.If there has any better one 
to replace it? What do you suggest to use once BlockDeviceDriver is removed?Can 
you tell me about this?Thank you very much!
















Best Regards
Rambo
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