Table of Contents:
- Virtual machine backup pricing: shared versus dedicated models
- Cool tier versus archive tier for backup storage in HubStor
- How are backup storage costs calculated?
- When does it make sense to go for a dedicated backup instance?
- Pricing perks you get with a dedicated BaaS instance
- Modernize your virtual machine backup today
HubStor’s virtual machine backup offers a streamlined approach to protecting your VM environments.
There are two models in which you can subscribe to the HubStor Backup-as-a-Service (BaaS) solution for virtual machine protection:
- Shared instance
- Dedicated instance
The shared instance refers to a multi-tenant SaaS backend that you can deploy yourself.
The dedicated instance refers to a single-tenant SaaS backend that is set up by HubStor for you exclusively. It can host in your account or under HubStor’s.
In a later post, I will discuss the technical differences between shared and dedicated SaaS backends. For now, let’s understand the pricing.
Virtual machine backup pricing: shared versus dedicated models
Pricing for HubStor Backup-as-a-Service is a simple baseline cost each month with pay-as-you-go, low-cost storage pricing. You can finally stop counting virtual machines, hosts, CPUs, and stop paying “annual maintenance” for your backup software.
If you opt to use the shared model, the monthly baseline cost is USD $50. The storage costs are $0.03 per GB for backups you store on the Cool tier, and $0.003 per GB for long-term retention backups you put on the Archive tier.
With a dedicated instance, HubStor’s pricing is a little more involved. Instead of a flat rate storage cost, pricing is a straight passthrough of the underlying Azure pricing model for compute, storage, and activity elements, with HubStor making money as a transparent margin on top. This margin concept can include volume discounts, so the more of a consumption profile you have, the better pricing you achieve.
Cool tier versus Archive tier for backup storage in HubStor
Cool tier is the default in HubStor and we recommend it because it provides attractive storage prices and functionality, namely that you get immediate retrieval of your data.
|Tenant type||Base monthly cost||Cool storage||Archive storage|
|Shared||$50 (minimum)||$0.03 (if storage costs > minimum)||$0.003 (if storage costs > minimum)|
|Dedicated||$350 (compute baseline)||$0.03 (varies by region)||$0.003 (varies by region)|
Technically, in either SaaS model, in the HubStor Backup Service (HBS) interface, you can change the storage tier settings to use any combination of Hot, Cool, and Archive that you like. In our opinion, Hot offers no advantage over Cool for backup storage.
While the Archive tier offers insanely low storage prices, we recommend it for long-term retention only. Physically in the cloud, the Archive tier is using tape libraries, so data retrieval is not immediate. It can take several hours. But for backups you need to keep for more than six months, perhaps for legal or regulatory reasons, then the Archive tier is your friend.
How are backup storage costs calculated?
In the shared model, the flat rate storage cost per gigabyte monthly uses the physical size of your data after savings from deduplication and compression. Since HubStor’s deduplication works at the file level, don’t expect much capacity savings there. However, compression savings should yield reductions around 30-40%. In other words, much of the slack space in your virtual machine disks won’t be counted. For example, if you are backing up a virtual machine environment that represents 100 TB of storage, you should expect to pay for 60 to 70 TB in HubStor.
With a dedicated instance, HubStor’s pricing is a little more intricate. There’s an estimated minimum of $350 baseline cost for the tenant instance. Instead of a flat rate storage cost, pricing is a straight passthrough of the underlying Azure pricing model for the dedicated compute resources in addition to storage and activity-related costing elements. HubStor makes money as a transparent margin on top of the monthly cloud costs.
When does it make sense to go for a dedicated backup instance?
There’s no doubt, if you need to protect fewer than 100 virtual machines, the shared BaaS architecture is going to be more price advantageous for you. However, the average hard disk sizes of your virtual machines will play a factor since storage costs are involved. If you have very little storage, then the economics of shared can make sense up to much higher numbers of virtual machines.
However, at a certain scale, a dedicated HubStor instance is going to give you better pricing.
Keep in mind, not all hosting regions have the same prices. Depending on what hosting region you elect, the baseline costs for the dedicate tenant can vary. Monthly costs of $350 are the lowest from some regions in Europe and the United States. In other regions, such as the United Kingdom and Southeast Asia, the same baseline tenant configuration can run $500 per month. Storage costs vary from region to region too.
Pricing perks you get with a dedicated BaaS instance
Here are some pricing perks you get with the dedicated model:
- Volume discounts for dedicated instances – HubStor’s margin schedule for dedicated instances is typically volume discounted, meaning that HubStor’s margin rate decreases as the underlying cloud costs increase. In other words, HubStor sharpens the pencil automatically the bigger your cloud footprint becomes.
- Prepay discounts available for dedicated instances – You can prepay for annual consumption estimates and receive further discounts, for both HubStor and Azure. We’ve talked before about leveraging Azure Storage Reserved Capacity to bring down your HubStor and Azure costs. Prepays in HubStor consumption include discounts on the HubStor margin also.
Modernize your virtual machine backup today
To start using the HubStor Backup Service (HBS) in the shared model, complete the deploy now form to subscribe and get started.
If you would like to learn more about a dedicated SaaS backend for your use of HubStor, please contact us to speak with a technologist.