The number of volumes that you can restore with the full performance benefit of fast snapshot restore is determined by volume creation credits for the snapshot. For more information see Volume creation credits.
The number of volumes that receive the full performance benefit of fast snapshot restore is determined by the volume creation credits for the snapshot. There is one credit bucket per snapshot per Availability Zone. Each volume that you create from a snapshot with fast snapshot restore enabled consumes one credit from the credit bucket. You must have at least one credit in the bucket to create an intialized volume from the snapshot. If you create a volume but there is less than one credit in the bucket, the volume is created without benefit of fast snapshot restore.
We look at the number of hosts used in your organization per hour in each region and we subtract the total committed hosts in all your subscriptions for the specific region. The remainder is the overage. Overage usage is billed at on-demand rates per VMware Cloud on AWS pricing. Overages are billed in arrears and will be reflected in your invoice, which you receive after your billing date.
You can use the sizing and assessment tool to size your workloads for VMware Cloud on AWS. The tool enables you to size for factors including storage, compute, memory and IOPS in the logic to provide you with the most optimized server and SDDC recommendation for VMware Cloud on AWS. Once you have completed sizing your workloads, you can calculate your total cost of ownership (TCO) for these workloads and compare it with an on-premises virtual environment. The tool will calculate the number of hosts and clusters required to support your workload to run on a VMware Cloud on AWS SDDC. Try the tool here
Subscriptions entitle the end-user to a certain number of host hours. They are billed within the first 30 days of the purchase. Host hour usage over the purchased subscription and non-host charges such as data transfer, elastic IP, EBS, vSan, or custom networking configuration charges are billed using a 30-day billing cycle in arrears.
With the new time-bound Single Host SDDC starter configuration, you can now purchase a single host VMware Cloud on AWS environment with the ability to seamlessly scale the number of hosts up within that time period, while still retaining your data. The service life of the Single Host SDDC starter configuration is limited to 60-day intervals. This single host offering applies to customers who want a lower-cost entry point for proving the value of VMware Cloud on AWS in their environments.
Given the granular cluster level at which DRS operates, it becomes difficult to manage, replicate and update the static rules (laid down in the beginning) as the underlying infrastructure grows (number of VMs, hosts, applications). Similarly, the intent (the why and what) for which the rules were created is lost over a period of time. To get around this, Compute Policy provides a higher level of abstraction to capture the customer intent at a SDDC level rather than at a cluster level at which DRS operates. As a result, a single policy can apply to multiple clusters within the SDDC at the same time. It aims to provide a framework to not only allow placement and load balancing decisions for VMs, but also to handle entire workloads.
DRS will first try to place as many VMs on different hosts as possible, which in this case will be equal to the number of hosts available in the cluster. After that, the policy shall not be enforced, i.e. the remaining VMs will be placed based on the other factors DRS, which may result in multiple VMs on the same host. To remedy this violation, additional hosts can be added to the cluster. Once the hosts are added, DRS will move the VMs that are violating the policy to the newly added hosts.
To preserve the number of licensed CPU cores, it is highly recommended that you leverage VMware Cloud on AWS Compute Policies (Simple VM-Host Affinity) to tag all applicable VMs and all the original hosts in the cluster, so that the compute policy can keep these VMs on those hosts. During regular VMware Cloud on AWS patch and upgrade operations, an additional host is added to a cluster. Therefore, you need to include the license for this additional host in your initial licensing contract, making it N+1 since day one.
Yes. However, the number of custom core counts supported in the secondary cluster depends on the size of the secondary cluster. For a 2-node secondary cluster, the custom core counts supported will be from 16 and above. For a 3-host and above secondary cluster, the custom core counts outlined in the table above are supported.
Yes. Just like a regular cluster, you can add and remove hosts at any time. However, in a stretched cluster these hosts must be added and removed in pairs. You must have the same number of hosts on each side at all times. Thus, you can grow a cluster from 6 to 8, 10, 12, etc.
If you have an SPBM policy that requires a minimum number of hosts, such as RAID 6, eDRS will not scale down below that minimum number. To allow scale down, reconfigure SPBM to use a policy without that restriction such as RAID 1.
No. Because eDRS is throttled, it's not designed for very sudden load spikes such as caused by a DR event. In this case, you should script the host addition process as part of your DR runbook. After the DR workload is started, you can rely on eDRS to maintain the correct number of hosts in your cluster. 2b1af7f3a8