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What will happen to a droplet when the host machine needs maintenance?

Posted September 11, 2020 111 views
FAQHigh Availability

What will happen to a droplet when the host machine needs maintenance? Will the droplet be down for the duration of the maintenance period? Or, will the droplet be seamlessly/transparently transferred to a different host machine while the original host machine is being repaired?

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jclacsam
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2 answers
smadhavapeddi September 11, 2020

Hello,

Generally if it is Droplet maintenances, we generally tend to perform Live migration , where there is no downtime on the Droplet. If in case, there is an issue with Live migration, then we opt for offline migration.

Refer to below link:

https://www.digitalocean.com/docs/platform/live-migration/

If it is a network maintenance, then there would be a small latency issues on the network packets but the Droplets should work as expected.

Hope this clears your concerns.

Cheers,
Sri Charan

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  • jclacsam September 11, 2020

    Hi Sri Charan,
    Just to clarify, when you say “we”, you mean you as part of the DigitalOcean technical support team, not as an end user like me. Right? Live migration sounds like the solution I am looking for but it depends greatly on who actually performs the task.

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alexdo September 11, 2020

Hello, @jclacsam

There are different kinds of maintenances that we sometimes need to do that have differing maintenance windows and allowed time for action.

In each case customers are notified by email regarding the maintenance listing the affected droplets, the reason for the maintenance, what the possible impact may be, and whether or not any action will be taken on the specific virtual servers.

Some maintenances, such as network, do not require the virtual servers to be shutdown in anyway, while others like migrating to a new hypervisor do. On occasion this means that the VM will be powered down and then migrated to another hypervisor - we also do port checking before and after, to make sure that the open listening ports prior to the migration are once again open and listening after.

Hope that this helps!
Regards,
Alex

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