Public Cloud FAQ

Frequently Asked Questions

Commercial questions


What is the difference between OVH Public Cloud and OVH Dedicated Cloud?

OVH Public Cloud offers guaranteed and constant resources on high performance shared infrastructures. Customers are billed on a pay-as-you-go basis (hourly or monthly) to cater for one-time usage and highly variable activity.

OVH Dedicated Cloud offers customers dedicated virtual resources on fully dedicated infrastructures, providing an additional layer of security. OVH Dedicated Cloud can be used to create a hybrid cloud architecture and can be adapted to a wider range of professional uses.

How do I get a Public Cloud server?

Via the OVH Control Panel. You don't need to do anything on our website; you just need a username and password to activate your Public Cloud servers right away. You will be billed at a later date for your usage.

Which payment methods can I use to pay for OVH Public Cloud and how is the service billed?

You can choose from the payment methods available at OVH.com/ca/en: PayPal and credit card. You will need to register your payment method when you activate your first instance.

You will be billed for resources used during the previous month between day 1 and 5 of every month. If you choose to pay monthly, you will be billed for the month that has just begun and any additional, unpaid resources carried over from the previous month, such as instances and object storage. If you switch to monthly billing throughout the course of the month, you will be billed immediately for the amount due for the current month, calculated on a pro-rata basis.
You will be billed for instances until you delete them in the OVH Control Panel.

How do I optimize my Public Cloud server costs?

Monthly billing lets you optimize your costs if you have more long-term projects: you can save up to 50%. Either select monthly billing when you create your instance, or switch over during the month.

You can track your usage more precisely thanks to projections obtained from the history of your previous usage. You also have the option to be billed per project or per cluster of Public Cloud servers so you can easily reinvioice your within your company if necessary.

Does Public Cloud invoice incoming and outgoing traffic from instances?

Incoming public traffic and incoming and outgoing private traffic (vRack) are unlimited and free in all our Public Cloud regions.
Outgoing public traffic is free and unlimited, except in Singapore (SGP) and Sydney (SYD): a flat rate of 1024 GB/month per project and per datacenter is offered. You will be billed for each additional GB. $0.103/GB.

What are the benefits of Cloud credit?

Cloud credit is available to users who want to pay only for a specific cloud project. Ideal for projects with a foreseeable lifespan, or for companies who are concerned with planning ahead for their expenses.

Just like an instance or a container, buying cloud credit generates an invoice. Once your project has been credited, all invoices associates to it will be collected on a priority basis using the available cloud credit.

How is the traffic for instances hosted in Sydney or Singapore billed?

Each Public Cloud project includes 1 TB (1024 GB) of outgoing traffic per datacenter (1 TB for Sydney and 1 TB for Singapore), renewed monthly. Each additional GB of outgoing traffic is billed additionally. $0.103/GB.

Note: All OVH datacenters in Europe and North America benefit from unlimited traffic at no extra cost.

Cloud Project Datacentre Instances Monthly use of outgoing traffic
Projet-1 SYD (Sydney) B2-30 800 GB
Projet-1 SYD (Sydney) S1-2 400 GB
Projet-1 SGP (Singapore) B2-7 1300 GB
Projet-1 BHS (Canada) R2-15 1500 GB

Cloud Project Datacentre Use of outgoing public traffic Included with your project Overages
Projet-1 SYD (Sydney) 1200 GB 1024 GB 176 GB
Projet-1 SGP (Singapore) 1300 GB 1024 GB 276 GB
Projet-1 BHS (Canada) 1500 GB Unlimited -

How can I track my traffic consumption for my hosted instances in Sydney and Singapore?

In your OVH Control Panel, in the "Cloud" section and on your project, click on "Administrative management", then on "Consumption".

You will be able to consult your traffic consumption per cloud project and per datacenter. Please note that the information displayed may take up to three hours to reflect your actual consumption.

Will I receive an alert when the traffic threshold included in my Public Cloud offer for my hosted instances in Sydney and Singapore is about to be exceeded?

No. There is no alert system for your traffic consumption.

How is my traffic quota calculated when I use instances in Sydney and/or Singapore on an hourly basis?

There is no difference with the traffic quota, whether an instance is invoiced on an hourly or monthly basis. It is always calculated on the basis of total outgoing traffic, per cloud project and per data center.

Is my traffic quota for Sydney and Singapore based on public and private network traffic, or only on public traffic?

Traffic on the private network is free and unlimited. However, OVH monitors over-usage (above 75% usage of the network capacity for 72 minutes within a 24-hour period) across private networks, by suspending the instance in question.

Is my traffic quota for instances in Sydney and Singapore based on incoming or outgoing traffic?

Bills are calculated based on any public outgoing traffic that exceeds the included traffic quota. Incoming traffic is not billed

Is there any API that can track my data consumption for instances in Sydney and Singapore?

This solution is currently in development at OVH.

If I don't use my full included traffic quota, will it roll over from month to month?

No. Each month, the included traffic is reset to 1TB per datacentre, regardless of the previous month's consumption.

Can I transfer my traffic included in Sydney and Singapore between accounts, between public cloud project or between datacenter in the same project?

No. The traffic quota for instances in Sydney and Singapore cannot be transferred, and does not roll over from month to month.

Technical questions


What disk performance do you offer with your Public Cloud Servers?

OVH guarantees up to 500 IOPS for VPS instances and up to 1000 IOPS for CPU and RAM instances. As for additional drives, their performance level goes up to 250 IOPS for Classic drives and up to 3,000 IOPS for High Speed drives​​.

To test your disks' performance for yourself, view guide.

What level of network bandwidth is offered for OVH Public Cloud servers?

OVH guarantees 250 Mbps bandwidth for most of its instances with guaranteed resources with up to four vCores, and 500 Mbps bandwidth for instances with more than four vCores. Sandbox instances offer up to 100 Mbps bandwidth.

What is the best way to store files in OVH Public Cloud?

With OVH Object Storage, you can store and retrieve all different file types. You can transfer files with a simple http(s) request in the Control Panel. You pay for storage and outgoing traffic per gigabyte, at the lowest prices on the market.

How do I add or remove instances?

You can activate or deactivate a Public Cloud instance at any time, or even add a new one to your existing machines. You can do this in your Control Panel, so you don't need to order or cancel anything. You will be able to upgrade or downgrade your instances

Can I personalize my Public Cloud servers?

You have root access to each Public Cloud server which you select. All setups and software configurations are therefore your responsibility. As for the hardware, you have a choice of ten models of Public Cloud servers. You can also add more disk space and geolocated IPs from your customer account

Discover all the features

In which datacentres can I choose to host my Public Cloud servers?

In Europe, our Strasbourg and Gravelines datacentres are fully-operational in France, and ready to host Public Cloud servers. With our London, Frankfurt and Warsaw datacentres, you can expand your web services further across Europe. You can also host data at our datacentre in Beauharnois, Canada, to reach US customers. And our Sydney and Singapore datacentres also offer Public Cloud services.

How do I manage my Public Cloud servers?

The Control Panel lets you not only activate and configure your instances, but also manage them via an SSH key . You also have access to the OVH API and the OpenStack Horizon API , both of which you can use to automate any actions.

You can also manage multiple projects using Public Cloud servers by delegating permissions to your users (admin, technical, customer etc.). You also get supervisory, restart or rescue mode functions directly from your OVH customer account.

Is it possible to back up my Public Cloud servers?

You can take snapshots of your instances at any time. There's no limit to the amount you can take.

What level of SLA does OVH Public Cloud offer?

The OVH Public Cloud offers a service level of 99.99% for all of its available resources (compute, storage, network). If there are any connectivity issues that are unrelated to scheduled maintenance operations, a compensation rate of 0.5% per minute of unavailability is provided (up to a limit of 100% of your resource usage for the month concerned).

Can I install Windows licences on Public Cloud servers?

Yes, you can choose to start a Windows instance from your OVH Control Panel, or to install the Windows image of your choice from your Horizon interface. There will be no extra charge to access the operating system and the Windows licence.

In order to make the rates for our Windows instanes more simple and easier to read, the price difference with our Linux instances can be accessed through our product pages, simply by clicking on the "Make your choice" button.

Do the volumes have an overall IOps limit, or is there a specific limit for each volume?

Each volume has its own IOps limit. In addition, there is also an overall flavor limit (which varies according to the size) and which is itself valid for the instance's total IOps.

Can you configure security groups from the control panel?

No, you can only configure security groups from the GUI OpenStack (Horizon) and CLI for the time being.

Can you resize a volume dynamically while continuing to write on the disk?

No, you must detach a volume before expanding it.

Is there a maximum number of additional volumes that you can attach to each instance?

Yes, the limit is 26 additional volumes.

Can you resize an instance's CPU or RAM while it is running?

No, to change the flavor you have to restart the server.

Can you add a local SSD volume to an instance?

No, the additional volumes must be external Ceph volumes.

Can you mount an additional volume on several servers at the same time?

No, this feature is still in development on OpenStack, it will be available in the next versions.

How can I get help to install and configure my Public Cloud servers?

Contact the OVH support team by creating a ticket in the Control Panel. Click 'Support' then 'New ticket'. You can escalate your request by ticking the box at the bottom of the ticket form. Our teams are available 24/7/365.