Strange issue with Cloudstack and Ceph

[Jayanth Reddy]

Hello Users,

We have the environment as below:
Cloudstack version: v4.16.1.0
Management and hypervisors: Ubuntu Server 20.04 LTS
Hypervisor: KVM
Primary Storage: Ceph RBD (cluster scoped)

It appears that one of our clusters having 8 hosts is having the issue. We
have HCI on these 8 hosts and there are approximately 700+ VMs running. But
strange enough, there are these logs like below on hosts.

```
Oct 25 13:38:11 hv-01 libvirtd[9464]: failed to open the RBD image
'087bb114-448a-41d2-9f5d-6865b62eed15': No such file or directory
Oct 25 20:35:22 hv-01 libvirtd[9464]: failed to open the RBD image
'ccc1168a-5ffa-4b6d-a953-8e0ac788ebc5': No such file or directory
Oct 26 09:48:33 hv-01 libvirtd[9464]: failed to open the RBD image
'a3fe82f8-afc9-4604-b55e-91b676514a18': No such file or directory
Oct 26 10:38:17 hv-01 libvirtd[9464]: End of file while reading data:
Input/output error
```

We've got DNS servers on which there is an`A` record resolving to all the
IP4 Addresses of 8 monitors and there have not been any issues with the DNS
resolution. But the issue of "failed to open the RBD image
'ccc1168a-5ffa-4b6d-a953-8e0ac788ebc5': No such file or directory" gets
more weird because the VMs that are making use of that RBD image lets say
"087bb114-448a-41d2-9f5d-6865b62eed15" is running on altogether different
host like "hv-06". On further inspection of that specific Virtual Machine,
it has been running on that host "hv-06" for more than 4 months or so
(looked at "Last updated" field). Fortunately, the Virtual Machine has no
issues and has been running since then.

We're noticing the same "failed to open the RBD image" on all the hosts in
that cluster. There are no network issues observed or any issues on the
hosts. I was thinking of getting this host into maintenance but the same is
there on all the hosts in that cluster. I've not gotten a chance to look at
the management server logs but was wondering if someone had gotten into the
same issue.

Thanks,
Jayanth

Re: Stuck in CentOS 5.5(64-bit) no GUI (KVM)

[Ricardo Pertuz]

Got it solved, basically it couldn’t finish because the storage SystemVm wasn’t 
able to mount the nfs and now all images were able to download. Thanks for the 
prompt reply.


BR,

Ricardo Pertuz


On 30 Oct 2023 at 11:29 AM -0500, Pearl d'Silva , 
wrote:
> Hi Ricardo,
>
> Has the systemvm template gotten downloaded/ installed properly, and are the 
> SystemVMs - specifically the SSVM up and running? Deployment of VR shouldn't 
> be affected by the state of CentOS image. Is there any exception thrown 
> during the deployment of the router?
>
> Regards
> 
> From: Ricardo Pertuz 
> Sent: October 30, 2023 11:40 AM
> To: users@cloudstack.apache.org 
> Subject: Stuck in CentOS 5.5(64-bit) no GUI (KVM)
>
> Hi team,
>
> My new acs 4.18.1 installation got stuck downloading the image CentOS 
> 5.5(64-bit) no GUI (KVM) (NOT_DOWNLOADED) and now the VRs are not deploying, 
> how can I resume or restart this images installation? Can I delete it?
>
> Regards,
>
>
> Ricardo Pertuz
>
>
>
>
>

Re: Stuck in CentOS 5.5(64-bit) no GUI (KVM)

[Pearl d'Silva]

Hi Ricardo,

Has the systemvm template gotten downloaded/ installed properly, and are the 
SystemVMs - specifically the SSVM up and running? Deployment of VR shouldn't be 
affected by the state of CentOS image. Is there any exception thrown during the 
deployment of the router?

Regards

From: Ricardo Pertuz 
Sent: October 30, 2023 11:40 AM
To: users@cloudstack.apache.org 
Subject: Stuck in CentOS 5.5(64-bit) no GUI (KVM)

Hi team,

My new acs 4.18.1 installation got stuck downloading the image CentOS 
5.5(64-bit) no GUI (KVM) (NOT_DOWNLOADED) and now the VRs are not deploying, 
how can I resume or restart this images installation? Can I delete it?

Regards,


Ricardo Pertuz



 

Stuck in CentOS 5.5(64-bit) no GUI (KVM)

[Ricardo Pertuz]

Hi team,

My new acs 4.18.1 installation got stuck downloading the image CentOS 
5.5(64-bit) no GUI (KVM) (NOT_DOWNLOADED) and now the VRs are not deploying, 
how can I resume or restart this images installation? Can I delete it?

Regards,


Ricardo Pertuz

Re: CloudStack - TF Integration Status

[Rohit Yadav]

Hi Rohit P,

As I've shared in my earlier reply, CloudStack already supports Tungsten Fabric 
so given news on TF's website it's really up our community to discuss this 
further, propose and evaluate options.

Apart from TF, we do have alternative SDN support in CloudStack, first and 
foremost CloudStack's very own native virtual router and support for VPC, 
isolated, L2 and shared networks;  along with that, we've a bunch of network 
plugins for variety of network functions 
(https://github.com/apache/cloudstack/tree/main/plugins/network-elements) and 
an upcoming integration with VMware NSX (there's a talk proposes for CCC 
https://www.cloudstackcollab.org/#schedule and a work-in-progress pull request).

Generally speaking, as with any software project and integration dependencies, 
when there is lack of access to software or hardware and licenses (for testing, 
CI/CD) by the community, and lack of support by the vendor or users, the 
original integration may develop stability and maintenance issues longer term.


Regards.


From: Rohit Palsulkar 
Sent: Monday, October 30, 2023 16:20
To: users@cloudstack.apache.org 
Subject: Re: CloudStack - TF Integration Status

Hi Rohit,

Kindly help me with the query I have asked earlier.

"Could you please confirm if the development towards Tungsten Integration
will not happen going forward? If yes, do we have any alternatives to
Tungsten?"


On Fri, 27 Oct 2023 at 03:06, Rohit Palsulkar 
wrote:

> Thank you Stephan.
>
> Yes, Rohit Yadav
> I was referring to the *Tungsten Fabric* Website only. Wherein the
> Website's Landing page says -
>
> *"Thank you for your interest in Tungsten Fabric. The community has
> decided to shut down the project and will sunset this website on August 1,
> 2024."*
>
> Could you please confirm if the development towards Tungsten Integration
> will not happen going forward? If yes, do we have any alternatives to
> Tungsten?
>
> On Thu, 26 Oct 2023 at 19:30, Rohit Yadav 
> wrote:
>
>> Thanks Stephan, Rohit P. for the thread. I couldn't see the attached
>> screenshot which possibly got stripped from the mail (mailing lists doesn't
>> allow such attachments).
>>
>> Support for Tungsten Fabric already exists in CloudStack, but given the
>> new update on TF's website I suppose all of us in the community needs to
>> review this change and evaluate options.
>>
>>
>> Regards.
>>
>> 
>> From: Stephan Bienek 
>> Sent: Thursday, October 26, 2023 14:45
>> To: users@cloudstack.apache.org 
>> Subject: Re: CloudStack - TF Integration Status
>>
>> Rohit P. might be referring to Tungsten Fabric instead of Terraform.
>>
>> On the project website of Tungsten Fabric the project team states:
>>
>> "Thank you for your interest in Tungsten Fabric. The community has
>> decided to shut down the project and will sunset this website on August 1,
>> 2024."
>>
>> which would give the right relation to Rohit`s question of how this will
>> impact the integration with Cloudstack
>>
>> Best regards,
>> Stephan
>>
>> > Rohit Yadav  hat am 26.10.2023 10:59 CEST
>> geschrieben:
>> >
>> >
>> > Hi Rohit,
>> >
>> > Some triaging work was done last month, we hope to work towards the
>> next TF release v0.5.0 after ACS 4.19 release -
>> https://github.com/apache/cloudstack-terraform-provider/milestone/2
>> >
>> > In the meanwhile, any user efforts in testing and submitting
>> bugs/improvement requests on Github are welcome.
>> >
>> >
>> > Regards.
>> >
>> > 
>> > From: Rohit Palsulkar 
>> > Sent: Thursday, October 26, 2023 14:25
>> > To: users@cloudstack.apache.org 
>> > Subject: CloudStack - TF Integration Status
>> >
>> > Hi All,
>> >
>> > I just wanted to know the status of the CloudStack - TF Integration. Is
>> it still happening?
>> >
>> > I came across the TF Website and saw below message -
>> >
>> > [Screenshot 2023-10-26 at 2.07.48 PM.png]
>> >
>> > Kindly let us know if this will affect the ongoing development towards
>> the Integration with Cloudstack?
>> >
>> > --
>> > Regards,
>> > Rohit P
>> > [
>> https://ci3.googleusercontent.com/mail-sig/AIorK4yvCmOZqibK4B_l3XOxCFDHWF9Qo_rdu2JLbrcXZf9-hhM9s8z-Lg2J-zCpyobbFnVUAAzHtRg
>> ]
>> >
>> > This message is intended only for the use of the individual or entity
>> to which it is addressed and may contain confidential and/or privileged
>> information. If you are not the intended recipient, please delete the
>> original message and any copy of it from your computer system. You are
>> hereby notified that any dissemination, distribution or copying of this
>> communication is strictly prohibited unless proper authorization has been
>> obtained for such action. If you have received this communication in error,
>> please notify the sender immediately. Although IndiQus attempts to sweep
>> e-mail and attachments for viruses, it does not guarantee that both are
>> virus-free and accepts no liability for any damage sustained as a result of

Re: Live Instance Backup

[Simon Weller]

Sven,

That's great! I should have said "any storage that supports QCOW2, should
support live VM Snapshots".



On Mon, Oct 30, 2023, 4:05 AM  wrote:

> Hi Fariborz,
>
> I want to add to Simon's answer that also linstor storage plugin supports
> live snapshots and not only NFS storage.
>
> regards,
> Swen
>
> -Ursprüngliche Nachricht-
> Von: Jithin Raju 
> Gesendet: Montag, 30. Oktober 2023 09:32
> An: users@cloudstack.apache.org
> Betreff: Re: Live Instance Backup
>
> Hi Fariborz,
>
> The setting must be : kvm.vmstoragesnapshot.enabled. In case you are
> looking for volume snapshots: kvm.snapshot.enabled .
>
> -Jithin
>
> From: Fariborz Navidan 
> Date: Monday, 30 October 2023 at 12:49 PM
> To: users@cloudstack.apache.org 
> Subject: Re: Live Instance Backup
> Hello,
>
> Thanks a lot for your reply. Could you please let me know what is the
> setting nams in CloudStack?
>
> TIA
>
> On Mon, 30 Oct 2023, 04:37 Simon Weller,  wrote:
>
> > Fariborz,
> >
> > KVM does support live (running) snapshots, but it's dependent on the
> > underlying storage you're using. Currently, only NFS supports live
> > snaps, as KVM stores the memory in a QCOW2 image.
> >
> > There's a global option to enable this feature in CloudStack.
> >
> > -Si
> >
> > On Sun, Oct 29, 2023, 6:02 AM Fariborz Navidan 
> > wrote:
> >
> > > Hi CS community,
> > >
> > > We're running CS 4.15.0.0 and KVM hypervisor. It doesn't support
> > > live instance backups. Does the latest version of CS and KVM/QEMU
> > > have this feature in place?
> > >
> > > TIA
> > > Cheers.
> > >
> >
>
>
>
>
>
>

RE: Live Instance Backup

[cristian.c]

Hello Ludjon,

That sounds like a prudent approach to ensure that our hosting solutions align 
well with your audience's needs and expectations. We're on board with beginning 
our collaboration through a Sponsored Review article, a listing in one of your 
articles, and a promotion in your newsletter. Could you please share the 
associated costs for these services? We’re eager to understand the investment 
required and to initiate this partnership.

Warm regards,

Cristian
Shape.host Team

-Original Message-
From: Simon Weller  
Sent: Monday, October 30, 2023 3:07 AM
To: users@cloudstack.apache.org
Subject: Re: Live Instance Backup

Fariborz,

KVM does support live (running) snapshots, but it's dependent on the underlying 
storage you're using. Currently, only NFS supports live snaps, as KVM stores 
the memory in a QCOW2 image.

There's a global option to enable this feature in CloudStack.

-Si

On Sun, Oct 29, 2023, 6:02 AM Fariborz Navidan 
wrote:

> Hi CS community,
>
> We're running CS 4.15.0.0 and KVM hypervisor. It doesn't support live 
> instance backups. Does the latest version of CS and KVM/QEMU have this 
> feature in place?
>
> TIA
> Cheers.
>

Re: CloudStack - TF Integration Status

[Rohit Palsulkar]

Hi Rohit,

Kindly help me with the query I have asked earlier.

"Could you please confirm if the development towards Tungsten Integration
will not happen going forward? If yes, do we have any alternatives to
Tungsten?"


On Fri, 27 Oct 2023 at 03:06, Rohit Palsulkar 
wrote:

> Thank you Stephan.
>
> Yes, Rohit Yadav
> I was referring to the *Tungsten Fabric* Website only. Wherein the
> Website's Landing page says -
>
> *"Thank you for your interest in Tungsten Fabric. The community has
> decided to shut down the project and will sunset this website on August 1,
> 2024."*
>
> Could you please confirm if the development towards Tungsten Integration
> will not happen going forward? If yes, do we have any alternatives to
> Tungsten?
>
> On Thu, 26 Oct 2023 at 19:30, Rohit Yadav 
> wrote:
>
>> Thanks Stephan, Rohit P. for the thread. I couldn't see the attached
>> screenshot which possibly got stripped from the mail (mailing lists doesn't
>> allow such attachments).
>>
>> Support for Tungsten Fabric already exists in CloudStack, but given the
>> new update on TF's website I suppose all of us in the community needs to
>> review this change and evaluate options.
>>
>>
>> Regards.
>>
>> 
>> From: Stephan Bienek 
>> Sent: Thursday, October 26, 2023 14:45
>> To: users@cloudstack.apache.org 
>> Subject: Re: CloudStack - TF Integration Status
>>
>> Rohit P. might be referring to Tungsten Fabric instead of Terraform.
>>
>> On the project website of Tungsten Fabric the project team states:
>>
>> "Thank you for your interest in Tungsten Fabric. The community has
>> decided to shut down the project and will sunset this website on August 1,
>> 2024."
>>
>> which would give the right relation to Rohit`s question of how this will
>> impact the integration with Cloudstack
>>
>> Best regards,
>> Stephan
>>
>> > Rohit Yadav  hat am 26.10.2023 10:59 CEST
>> geschrieben:
>> >
>> >
>> > Hi Rohit,
>> >
>> > Some triaging work was done last month, we hope to work towards the
>> next TF release v0.5.0 after ACS 4.19 release -
>> https://github.com/apache/cloudstack-terraform-provider/milestone/2
>> >
>> > In the meanwhile, any user efforts in testing and submitting
>> bugs/improvement requests on Github are welcome.
>> >
>> >
>> > Regards.
>> >
>> > 
>> > From: Rohit Palsulkar 
>> > Sent: Thursday, October 26, 2023 14:25
>> > To: users@cloudstack.apache.org 
>> > Subject: CloudStack - TF Integration Status
>> >
>> > Hi All,
>> >
>> > I just wanted to know the status of the CloudStack - TF Integration. Is
>> it still happening?
>> >
>> > I came across the TF Website and saw below message -
>> >
>> > [Screenshot 2023-10-26 at 2.07.48 PM.png]
>> >
>> > Kindly let us know if this will affect the ongoing development towards
>> the Integration with Cloudstack?
>> >
>> > --
>> > Regards,
>> > Rohit P
>> > [
>> https://ci3.googleusercontent.com/mail-sig/AIorK4yvCmOZqibK4B_l3XOxCFDHWF9Qo_rdu2JLbrcXZf9-hhM9s8z-Lg2J-zCpyobbFnVUAAzHtRg
>> ]
>> >
>> > This message is intended only for the use of the individual or entity
>> to which it is addressed and may contain confidential and/or privileged
>> information. If you are not the intended recipient, please delete the
>> original message and any copy of it from your computer system. You are
>> hereby notified that any dissemination, distribution or copying of this
>> communication is strictly prohibited unless proper authorization has been
>> obtained for such action. If you have received this communication in error,
>> please notify the sender immediately. Although IndiQus attempts to sweep
>> e-mail and attachments for viruses, it does not guarantee that both are
>> virus-free and accepts no liability for any damage sustained as a result of
>> viruses.
>>
>>
>>
>>
>
> --
> Regards,
> Rohit P
>
>

-- 
Regards,
Rohit P

-- 
This message is intended only for the use of the individual or entity to 
which it is addressed and may contain confidential and/or privileged 
information. If you are not the intended recipient, please delete the 
original message and any copy of it from your computer system. You are 
hereby notified that any dissemination, distribution or copying of this 
communication is strictly prohibited unless proper authorization has been 
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viruses.

Re: Instance Creation on LXC

[Logeswaran T]

Yes @Daan, we tried to run LXC in a separate environment apart from
cloudstack and its working fine. But we are facing the issue in the
cloudstack.

Still working on it.

Regards,
Loges
www.stackbill.com

On Mon, Oct 30, 2023 at 3:43 PM Daan Hoogland 
wrote:

> Did you get any further @Loges ?
>
> I tried an LXC install with a colleague last week, but we didn't get it to
> run properly.
> Did you try running the template on LXC directly (no cloudstack involved)
> and did that work?
>
> On Wed, Oct 18, 2023 at 1:10 PM Logeswaran T
>  wrote:
>
> > Hi All,
> >
> > Unable to Create LXC instances. Error in ui "Hypervisor LXC Does not
> > support rootdisksize override "
> >
> > Cloudstack Version: 4.18.1
> >
> > Here are the steps to reproduce.
> >
> > 1. Add LXC Hypervisor
> > 2. Ubuntu LXC Template created using
> >
> >
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/LXC+Template+creation
> > 3. tar created and Added to Cloudstack
> > 4. On instance deployment its failed with error "Hypervisor LXC Does not
> > support rootdisksize override"
> > ![LXC](
> >
> >
> https://github.com/apache/cloudstack/assets/82935957/2be21c2d-ba69-49a5-9d40-32a05b9b08af
> > )
> >
> > Any ideas on this ?
> >
> > Regards,
> > Loges
> > www.stackbill.com
> >
> > --
> >
> >
> >
> >
> > *This E-mail is confidential. It may also be legally privileged. If you
> > are not the addressee you may not copy, forward, disclose or use any part
> > of
> > it. If you have received this message in error, please delete it and all
> > copies
> > from your system and notify the sender immediately by return E-mail.
> > Internet
> > communications cannot be guaranteed to be timely, secure, error or
> > virus-free.
> > The sender does not accept liability for any errors or
> > omissions*
> >
>
>
> --
> Daan
>

-- 




*This E-mail is confidential. It may also be legally privileged. If you
are not the addressee you may not copy, forward, disclose or use any part 
of
it. If you have received this message in error, please delete it and all 
copies
from your system and notify the sender immediately by return E-mail. 
Internet
communications cannot be guaranteed to be timely, secure, error or 
virus-free.
The sender does not accept liability for any errors or 
omissions*

Re: calcru: runtime went backwards, is this a normal behavior when creating a snapshot?

[Daan Hoogland]

@angel,
depending on your KVM/Qemu/libvirt versions a VM might be temporarily
stopped before taking a snapshot. Might this have something to do with it?

On Thu, Oct 26, 2023 at 4:29 AM an...@nttec.com.INVALID
 wrote:

> I was creating a snapshot of my VM which has freebsd 13.2 and has pfsense
> installed in it, when I encounter this logs
>
>
> Oct 26 01:37:00  kernel: calcru: runtime went backwards from 446770083
> usec to 30112729 usec for pid 374 (pf purge)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 10196 usec to
> 686 usec for pid 1014 (getty)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 10004 usec to
> 673 usec for pid 1015 (getty)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 8803 usec to
> 592 usec for pid 1016 (getty)
> Oct 26 01:37:00  kernel: calcru: runtime went backwards from 8894 usec to
> 599 usec for pid 1017 (getty)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 4317 usec to
> 290 usec for pid 1018 (getty)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 10787 usec to
> 726 usec for pid 1402 (su)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 93858 usec to
> 11396 usec for pid 86394 (php-cgi)
> Oct 26 01:37:00  kernel: calcru: runtime went backwards from 20818 usec to
> 1402 usec for pid 79867 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 68016993 usec
> to 4591667 usec for pid 79868 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 11359864 usec
> to 765565 usec for pid 79868 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 3575 usec to
> 240 usec for pid 381 (pflogd)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 62569305 usec
> to 4225742 usec for pid 79869 (nginx)
> Oct 26 01:37:00  kernel: calcru: runtime went backwards from 13883970 usec
> to 935669 usec for pid 79869 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 77969052 usec
> to 5264356 usec for pid 79870 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 12238871 usec
> to 836457 usec for pid 79870 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 53601263 usec
> to 3622343 usec for pid 79871 (nginx)
> Oct 26 01:37:00 kernel: calcru: runtime went backwards from 5634804 usec
> to 379741 usec for pid 79871 (nginx)
> Oct 26 01:37:11 kernel: calcru: runtime went backwards from 18452780 usec
> to 1287573 usec for pid 0 (kernel)
> Oct 26 01:37:11  kernel: calcru: runtime went backwards from 3 usec to 0
> usec for pid 0 (kernel)
>
>
>
> is this a normal behavior when creating a snapshot?
>
>

-- 
Daan

Re: Instance Creation on LXC

[Daan Hoogland]

Did you get any further @Loges ?

I tried an LXC install with a colleague last week, but we didn't get it to
run properly.
Did you try running the template on LXC directly (no cloudstack involved)
and did that work?

On Wed, Oct 18, 2023 at 1:10 PM Logeswaran T
 wrote:

> Hi All,
>
> Unable to Create LXC instances. Error in ui "Hypervisor LXC Does not
> support rootdisksize override "
>
> Cloudstack Version: 4.18.1
>
> Here are the steps to reproduce.
>
> 1. Add LXC Hypervisor
> 2. Ubuntu LXC Template created using
>
> https://cwiki.apache.org/confluence/display/CLOUDSTACK/LXC+Template+creation
> 3. tar created and Added to Cloudstack
> 4. On instance deployment its failed with error "Hypervisor LXC Does not
> support rootdisksize override"
> ![LXC](
>
> https://github.com/apache/cloudstack/assets/82935957/2be21c2d-ba69-49a5-9d40-32a05b9b08af
> )
>
> Any ideas on this ?
>
> Regards,
> Loges
> www.stackbill.com
>
> --
>
>
>
>
> *This E-mail is confidential. It may also be legally privileged. If you
> are not the addressee you may not copy, forward, disclose or use any part
> of
> it. If you have received this message in error, please delete it and all
> copies
> from your system and notify the sender immediately by return E-mail.
> Internet
> communications cannot be guaranteed to be timely, secure, error or
> virus-free.
> The sender does not accept liability for any errors or
> omissions*
>


-- 
Daan

AW: Live Instance Backup

[me]

Hi Fariborz,

I want to add to Simon's answer that also linstor storage plugin supports live 
snapshots and not only NFS storage.

regards,
Swen

-Ursprüngliche Nachricht-
Von: Jithin Raju  
Gesendet: Montag, 30. Oktober 2023 09:32
An: users@cloudstack.apache.org
Betreff: Re: Live Instance Backup

Hi Fariborz,

The setting must be : kvm.vmstoragesnapshot.enabled. In case you are looking 
for volume snapshots: kvm.snapshot.enabled .

-Jithin

From: Fariborz Navidan 
Date: Monday, 30 October 2023 at 12:49 PM
To: users@cloudstack.apache.org 
Subject: Re: Live Instance Backup
Hello,

Thanks a lot for your reply. Could you please let me know what is the setting 
nams in CloudStack?

TIA

On Mon, 30 Oct 2023, 04:37 Simon Weller,  wrote:

> Fariborz,
>
> KVM does support live (running) snapshots, but it's dependent on the 
> underlying storage you're using. Currently, only NFS supports live 
> snaps, as KVM stores the memory in a QCOW2 image.
>
> There's a global option to enable this feature in CloudStack.
>
> -Si
>
> On Sun, Oct 29, 2023, 6:02 AM Fariborz Navidan 
> wrote:
>
> > Hi CS community,
> >
> > We're running CS 4.15.0.0 and KVM hypervisor. It doesn't support 
> > live instance backups. Does the latest version of CS and KVM/QEMU 
> > have this feature in place?
> >
> > TIA
> > Cheers.
> >
>

 

Re: Live Instance Backup

[Jithin Raju]

Hi Fariborz,

The setting must be : kvm.vmstoragesnapshot.enabled. In case you are looking 
for volume snapshots: kvm.snapshot.enabled .

-Jithin

From: Fariborz Navidan 
Date: Monday, 30 October 2023 at 12:49 PM
To: users@cloudstack.apache.org 
Subject: Re: Live Instance Backup
Hello,

Thanks a lot for your reply. Could you please let me know what is the
setting nams in CloudStack?

TIA

On Mon, 30 Oct 2023, 04:37 Simon Weller,  wrote:

> Fariborz,
>
> KVM does support live (running) snapshots, but it's dependent on the
> underlying storage you're using. Currently, only NFS supports live snaps,
> as KVM stores the memory in a QCOW2 image.
>
> There's a global option to enable this feature in CloudStack.
>
> -Si
>
> On Sun, Oct 29, 2023, 6:02 AM Fariborz Navidan 
> wrote:
>
> > Hi CS community,
> >
> > We're running CS 4.15.0.0 and KVM hypervisor. It doesn't support live
> > instance backups. Does the latest version of CS and KVM/QEMU have this
> > feature in place?
> >
> > TIA
> > Cheers.
> >
>

 

ACS NFS Server HA

[Technology Rss]

Hello,

Can I use NFS server HA using Pacemaker? or which method is working fine 
?, please suggest me


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Re: Live Instance Backup

[Fariborz Navidan]

Hello,

Thanks a lot for your reply. Could you please let me know what is the
setting nams in CloudStack?

TIA

On Mon, 30 Oct 2023, 04:37 Simon Weller,  wrote:

> Fariborz,
>
> KVM does support live (running) snapshots, but it's dependent on the
> underlying storage you're using. Currently, only NFS supports live snaps,
> as KVM stores the memory in a QCOW2 image.
>
> There's a global option to enable this feature in CloudStack.
>
> -Si
>
> On Sun, Oct 29, 2023, 6:02 AM Fariborz Navidan 
> wrote:
>
> > Hi CS community,
> >
> > We're running CS 4.15.0.0 and KVM hypervisor. It doesn't support live
> > instance backups. Does the latest version of CS and KVM/QEMU have this
> > feature in place?
> >
> > TIA
> > Cheers.
> >
>