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Slow Instance Snapshot

asked 2015-05-08 05:52:05 -0500

rahuk gravatar image

Hey hey,

I belive i have a slow instance Snapshot issue but no logs or something else.

I have a Multi Controller-Compute(KVM)-Networke(Neutron) Envroiment based on Ubuntu 14.04 with Juno We habe a LACP bounded 1GB Network (=2GB)

Nova instances are on a NetAPP NFS Storage Glance Images on a NetAPP NFS Storage, too. Its the same NetAPP but not the same Share!

I try to Snapshot a Win Srv 12R2 instance with a 150GB C:\ Partition. On the Partition are Images and Trash, with Windows the VM need ~50GB real.

The end result is a 32,2GB big Glance Image. The Snapshot process need 45 minutes of Time.

Is the time normal ? Can I speedup the Snapshot process? Is there a possibility to snapshot like VMWare ? (Under 5 Minutes without Image?)

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answered 2015-05-08 15:36:55 -0500

Why not try creating an instance from a volume, and snapshotting the volume? This will also allow for live migration of vms and possibly other advantages as well. I believe it's slow because the ephemeral disk is still managed by nova and persistent storage is the way to go.

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Snapshotting Volumes with Generic NFS driver isn't possible. The function is not implemented... NetApp NFS driver requires license for flex_clone ....

rahuk gravatar imagerahuk ( 2015-05-11 01:06:13 -0500 )edit

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Asked: 2015-05-08 05:52:05 -0500

Seen: 1,104 times

Last updated: May 08 '15