Yes indeed there are 2 types of snapshots, the VM (which also can
snapshot the RAM, thus preserving a full state) and the storage volume
snapshot.
Both can be used for "backups", but they lend themselves to different
scenarios.
The VM snapshot is handy in those situations where you want a quick
fallback in case your "yum" or "windows" updates or other sensitive
operations break your VM or something. Of course, there are other
scenarios where this could be handy.
VM snapshots use the underlying file backing (say qcow2 file) for
storing what is required.
The volume snapshots are closer to the idea of proper backups because
what you get here is a full copy of the VM's disk, it'd be in a crash
consistent state by default, but could be good enough for most purposes.
Cloudstack will transfer this copy over on to the secondary storage,
which is great because it will be available even if the original
hypervisor goes down etc. Also, from this point on you can implement
(outside of Cloudstack) further sync or copy operations on these files,
thus helping with disaster recorvery plans and so on.
On KVM you need to make sure "kvm snapshot" is enabled in the Global
Settings btw.
---
Nux
www.nux.ro [1]
On 2022-05-27 14:55, [email protected] wrote:
Maybe it would be usefull to provide some more information regarding
the different "snapshots" which are availeable.
As far as I am aware we have
- Volume Snapshots - which can be used with different VMs and can be
planned ahead.
https://docs.cloudstack.apache.org/en/4.16.1.0/adminguide/storage.html#working-with-volume-snapshots
- VM Snapshots - which I guess is more "synonym" when talking about
snapshots.
https://docs.cloudstack.apache.org/en/4.16.1.0/adminguide/virtual_machines.html#virtual-machine-snapshots
The documentation "only" mentions "Automatic Snapshot Creation" for
volumes / storage. I am not quiet shure if this feature is also
availeable for VM-Snapshots.
Am Fr., 27. Mai 2022 um 11:57 Uhr schrieb Nux <[email protected]>:
You can have that, it's called "recurrent snapshots", in the UI you
will find it under the "clock" icon when in the Volume page.
https://cloudstack.apache.org/api/apidocs-4.16/apis/createSnapshotPolicy.html
---
Nux
www.nux.ro [1]
On 2022-05-27 10:41, Mariusz Wojtarek wrote:
I look for solution with schedule option, as I know snaphost can be
done only on demand
Mariusz Wojtarek
Administrator iT
P: 22 335 28 00
E: [email protected]
www.support-online.pl [2]
Poleczki 23 | 02-822 Warszawa
[3] [4]
Od: Nux <[email protected]>
Data: piątek, 27 maja 2022 o 11:31
Do: [email protected] <[email protected]>
DW: Mariusz Wojtarek <[email protected]>
Temat: Re: Odp: Cludstack vm backup
Thers is no backup driver for KVM at this time and there is none in
development either, afaik.
You could always count on the volume snapshot feature, especially if
you stick to single-disk/volume VMs.
HTH
---
Nux
www.nux.ro [1]
On 2022-05-27 09:34, Mariusz Wojtarek wrote:
So there is no backup solution for machines hosted on kvm ?
Błąd! Nie podano nazwy pliku.
Mariusz Wojtarek
Administrator iT
P: 22 335 28 00
E: [email protected]
www.support-online.pl [2]
Poleczki 23 | 02-822 Warszawa
Błąd! Nie podano nazwy pliku. [3] Błąd! Nie podano nazwy pliku. [4]
Od: Slavka Peleva <[email protected]>
Data: piątek, 27 maja 2022 o 10:24
Do: [email protected] <[email protected]>
Temat: Re: Cludstack vm backup
Hi Mariusz,
The dummy backup plugin is only for tests. Only the Veeam backup
provider
is supported for now by CS, which works with VMware HW.
Best regards,
Slavka
On Fri, May 27, 2022 at 11:09 AM Mariusz Wojtarek <
[email protected]> wrote:
Hi,
I am using cloudstack with kvm should dummy backup works with vms host
on
kvm ? when I try to make backup using dummy it not working, every
backup
size is 1GB.
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