EMC VNXRAIL/VNXRACK Snapshot Integration

[tevans8]

Is this on the development roadmap?

[dellock6]

VXRAIL is based on vsan in regards of the underlying storage. vsan uses a different snapshot technology that doesn't suffer from snapshot stun, so it doesn't require storage integration. And by the way, we have integration with vsan since v7 update 4: https://www.veeam.com/blog/veeam-backup ... pport.html

Luca

[tevans8]

Luca, can you explain what you mean by "doesn't require storage integration"? How does vsan (or vnxrack) differ from traditional storage and thus traditional snapshot handling?

[dellock6]

VSAN doesn't use the redolog technology used in VMFS and NFS datastore, but a new format, so the commit is almost immediate. You can read more here:
https://www.vmware.com/files/pdf/techpa ... 6-perf.pdf

Our integration with VSAN works also by reading data from the node that has the majority of data of a given disk, so that the network traffic is rduced to the minimum needed.