vSAN Release Notes, (10/11/18)
Buying a complete HCI solution generally follows this workflow
Run an assessment
Running an assessment is the first and foremost step where an existing system is evaluated and major metrics which affect the HCI solutions sizing and performance are calculated. Some of the important ones are IOPS, Throughput, Latencies, vCPUs, vMem etc.
Running an assessment is very important and highly recommended. Running an assessment means a customer takes his existing workload and uses the exact data to size a solution. Without an assessment, it is very hard to guess critical metrics which can have huge impacts on the sizing and TCO.
This step is where we run the metrics collected from the assessment and run through predefined math which is used to calculate hardware for optimal performance of the HCI solution. Sizing involves many other manual inputs which are outside of the scope of assessment like: Choosing an All Flash v/s Hybrid setup etc.
The sizing exercise provides several recommendations from various hardware vendors and also fetches the latest price of components and provides an estimated TCO
In this context, the assessment is run with Live Optics and the sizing is done with the VMware vSAN Sizer. Live Optics is a powerful tool that collects metrics from environments and prepares highly readable charts giving deep insights.
Following table has details of new enhancements that have been made in the fields that are transferred to VSAN Size by Live Optics.
About vSAN Sizer
The vSAN ReadyNode™ Sizer is a tool built for sizing HCI workloads. The logic accounts for compute and storage requirements when sizing for a single and multi-workload environment. The vSAN ReadyNode™ Sizer is designed for vSAN. There are several overheads, performance-based limits, and vSAN specific features which have been accounted for in the logic. The tool offers a high degree of customizability in terms of feature selection as well as user-based options. URL: https://vsansizer.vmware.com.
Data & Security
This section explains in detail about the security protocols implemented when data is transferred from Live Optics to vSAN Sizer and also explains what are the data points those are sent to the sizer.
Data Encryption & Transfer
The data is serialized into JSON and then encrypted with industry standard Algorithms. Live Optics and vSAN Sizer authenticate with each other based on shared secrets. Once the two tools authenticate initially, further communication is verified by the vSAN Sizer based on a pre-authenticated token. Other security protocols implemented require these authentication tokens to be always unique whenever they are generated and expire based on time.
Data Points Transferred
The below table explains what data is taken from Live Optics and transferred over to the vSAN Sizer. Some fields are taken as-is, but one some fields we apply minor math which helps in sizing.
In the below table, the first column, named ‘Live Optics Field’, lists what you see in Live Optics Report Dashboard. These are the fields that we take data from and send it over to vSAN Sizer.
Along with the assessment data, we also capture the Live Optics Logged in Users, First Name, Second Name and the email address.
Live Optics Support for Live Optics can be sought by browsing to https://support.liveoptics.com or by sending an email to email@example.com.
vSAN Sizer Support for vSAN Sizer can be sought by sending an email to firstname.lastname@example.org.
Note: Feature is in Beta
Please note that the feature is in Beta. While we are working towards making a full feature release, please be patient if you run into issues. Seek support assistance if you run into unexpected errors.