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Posted to users@cloudstack.apache.org by Antoine Boucher <an...@haltondc.com.INVALID> on 2025/08/22 10:59:52 UTC

Multiple Secondary Storage (NFS) on 4.19.0.1

Hello,

We utilise multiple secondary storage systems primarily for resilience and scalability.

However, when one of the secondary storage units fails, it becomes very difficult to continue taking snapshots and adding new templates. Given that the snapshots and templates on the failed server are unavailable, is there a way to instruct ACS to ignore the failed storage and proceed with the operational ones to maintain normal operation?


Thank you,
Antoine

Re: Multiple Secondary Storage (NFS) on 4.19.0.1

Posted by Antoine Boucher <an...@haltondc.com.INVALID>.
Thank you, Nischal.

We have some highly available NFS for primary storage.

Unfortunately, these quirks are the kind that make ACS frustrating to operate in a medium-sized environment, and SS management and operation remain a weak point.

Regards,
Antoine





> On Aug 22, 2025, at 8:12 AM, Nischal P <ni...@gmail.com> wrote:
> 
> Hi Antoine,
> 
> I think there is no method to tell Cloudstack to stop using secondary
> storage, I can suggest an alternative solution, you could try the Highly
> Available NFS, steps have been shared on the blog,
> 
> https://linbit.com/blog/highly-available-nfs-targets-with-drbd-pacemaker/
> 
> You could give it a try!
> 
> 
> Thanks & Regards
> Nischal
> 
> On Fri, 22 Aug, 2025, 4:30 pm Antoine Boucher,
> <an...@haltondc.com.invalid> wrote:
> 
>> Hello,
>> 
>> We utilise multiple secondary storage systems primarily for resilience and
>> scalability.
>> 
>> However, when one of the secondary storage units fails, it becomes very
>> difficult to continue taking snapshots and adding new templates. Given that
>> the snapshots and templates on the failed server are unavailable, is there
>> a way to instruct ACS to ignore the failed storage and proceed with the
>> operational ones to maintain normal operation?
>> 
>> 
>> Thank you,
>> Antoine
>> 
>> 
>> 
>>

Re: Multiple Secondary Storage (NFS) on 4.19.0.1

Posted by Nischal P <ni...@gmail.com>.
Hi Antoine,

I think there is no method to tell Cloudstack to stop using secondary
storage, I can suggest an alternative solution, you could try the Highly
Available NFS, steps have been shared on the blog,

https://linbit.com/blog/highly-available-nfs-targets-with-drbd-pacemaker/

You could give it a try!


Thanks & Regards
Nischal

On Fri, 22 Aug, 2025, 4:30 pm Antoine Boucher,
<an...@haltondc.com.invalid> wrote:

> Hello,
>
> We utilise multiple secondary storage systems primarily for resilience and
> scalability.
>
> However, when one of the secondary storage units fails, it becomes very
> difficult to continue taking snapshots and adding new templates. Given that
> the snapshots and templates on the failed server are unavailable, is there
> a way to instruct ACS to ignore the failed storage and proceed with the
> operational ones to maintain normal operation?
>
>
> Thank you,
> Antoine
>
>
>
>