Hi All,
Could someone please explain the Cinder multi-backends feature (as of Havana)?
Specifically, I had the following questions:
1) Can I attach multiple physical storage backends (let's say one all SSD,
another all SATA for instance) to a single host?
2) How does migration between different multiple backends work? Let's say
the an SSD volume is attached to a VM I want to migrate all the data in the SSD
volume to a SATA volume without bringing down the interface. Do I have to
manually mount/un-mount the persistent volume to the instance- how do paths are
maintained? For instance, let's say the persistent volume was /dev/vdx mounted
to /mnt/vol0 , how does it re-appear ?
Thanks a lot in advance!
Narendra
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