At VMware Explore 2022 in the US, VMware announced a number of new offerings for VMware Cloud on AWS, including something we’re calling “Supplemental Storage”. There are some great (official) posts that have already been published, so I won’t go through everything here. I thought it would be useful to provide some high-level details and cover some of the caveats that punters should be aware of.
VMware Cloud on AWS has been around for just over 5 years now, and in that time it’s proven to be a popular platform for a variety of workloads, industry verticals, and organisations of all different sizes. However, one of the challenges that a hyper-converged architecture presents is that resource growth is generally linear (depending on the types of nodes you have available). In the case of VMware Cloud on AWS, we (now) have 3 nodes available for use: the I3, I3en, and I4i. Each of these instances provides a fixed amount of CPU, RAM, and vSAN storage for use within your VMC cluster. So when your storage grows past a certain threshold (80%), you need to add an additional node. This is a longwinded way of saying that, even if you don’t need the additional CPU and RAM, you need to add it anyway. To address this challenge, VMware now offers what’s called “Supplemental Storage” for VMware Cloud on AWS. This is ostensibly external dat stores presented to the VMC hosts over NFS. This comes in two flavours: FSx for NetApp ONTAP and VMware Cloud Flex Storage. I’ll cover this in a little more detail below.
[image courtesy of VMware]
Amazon FSx for NetApp ONTAP
The first cab off the rank is Amazon FSx for NetApp ONTAP (or FSxN to its friends). This one is ONTAP-like storage made available to your VMC environment as a native service. It’s fully customer managed, and VMware managed from a networking perspective.
[image courtesy of VMware]
There’s a 99.99% Availability SLA attached to the service. It’s based on NetApp ONTAP, and offers support for:
The other option for supplemental storage is VMware Cloud Flex Storage (sometimes referred to as VMC-FS). This is a datastore presented to your hosts over NFSv3.
VMware Cloud Flex Storage is:
- A natively integrated cloud storage service for VMware Cloud on AWS that is fully managed by VMware;
- Cost effective multi-cloud Cloud storage solution built on SCFS;
- Delivered via a two-tier architecture for elasticity and performance (AWS S3 and local NVMe cache); and
- Provides integrated Data-Management.
In short, VMware has taken a lot of the technology used in VMware Cloud Disaster Recovery (the result of the Datrium acquisition in 2020) and used it to deliver up to 400 TiB of storage per SDDC.