Difference in vzdump modes

monster

Member
Oct 23, 2010
30
0
6
vzdump support the following modes:

--stop
--suspend
--snapshot

I've tried them all on my VE.

While --stop guaranties consistent data, is there any advantage to using --suspend instead of --snapshot? Are backups with --suspend "more consistent" the --snapshot?

Since the running applications don't get told to flush to disk, isn't restoring a --snapshot backup equivalent to booting after a power failure?

If yes, is there some trick to make it "less risky" as a backup form?
 
is there any advantage to using --suspend instead of --snapshot?

It does not create a snapshot (which uses system/hd resources).

Are backups with --suspend "more consistent" the --snapshot?

no

Since the running applications don't get told to flush to disk, isn't restoring a --snapshot backup equivalent to booting after a power failure?

yes

If yes, is there some trick to make it "less risky" as a backup form?

I don't see the risk - all major filesystems/databases use journals.

Besides, you can use a full featured backup solution - there are many of them.
 

About

The Proxmox community has been around for many years and offers help and support for Proxmox VE, Proxmox Backup Server, and Proxmox Mail Gateway.
We think our community is one of the best thanks to people like you!

Get your subscription!

The Proxmox team works very hard to make sure you are running the best software and getting stable updates and security enhancements, as well as quick enterprise support. Tens of thousands of happy customers have a Proxmox subscription. Get yours easily in our online shop.

Buy now!