HPE Cloud Managed Server Configurator Guide
Welcome to this guide to HPE ProLiant Easy Connect Managed Hybrid Server selection, including an overview of the Easy Connect Sizing Tool (http://www.zynstra.com/sizingtool/sizingtool-iframe.php).
If you are a managed service provider (MSP) or other IT professional, considering an Easy Connect server for a customer, this guide will help you:
- Capture key metrics and requirements that will influence the right product choice
- Identify a suitable Easy Connect server
Please familiarize yourself with the Easy Connect products and product options first, as an understanding of the product and services is essential if you are to select the right solution.
Choosing an Easy Connect Server
With a number of combinations of server and storage expansion to choose from, you need to choose the right solution to meet your customer’s requirements for core IT functions, data storage and application workloads.
Easy Connect simplifies the choice by ensuring that high-performance, resilience and data integrity are built in to the hardware and configuration of every server.
Furthermore, each server has been sized to deliver good performance of its core IT services including file share, a domain controller, monitoring, firewall, and security functions.
It is still important to match the needs of your customer to the right server model.
Start by answering the following questions:
- How much storage capacity is needed for on-premises file sharing?
- How many extra Virtual Machines (VMs) are required for custom applications?
- What are the RAM requirements for each custom Virtual Machine?
- How much storage is required for custom Virtual Machine data files?
Answering these questions will allow you to confidently choose the correct server.
Consider how these requirements will change, at least over the next three years, so you can pick a server that offers the resources needed to meet your customer’s growth.
Easy Connect Server Resources
The following tables show the hardware configuration of each server along with the estimated available storage capacity and RAM.
Once you have established the data storage and Virtual Machine resource requirements, choosing a server is as simple as looking up the options on these tables.
The workload requirements that have the greatest influence on your choice of server are file storage, custom VM memory, and custom VM virtual CPU resource requirements.
File Storage can be allocated to the user and group File Share and custom applications deployed in to VMs. Values show approximately how much ‘live’ working data can be stored. Capacity is also reserved by the server to ensure resilience and performance. On all servers data is:
- Mirrored across multiple physical disks for resilience
- Duplicated to a local back-up for file recovery
- Allocated sufficient capacity for temporary system files, caching and performance purposes
That’s why 1GB of user data requires several GB of physical disk capacity to deliver reliable, high performance file storage.
Actual capacity varies depending on the services being deployed. Example ranges shown in the tables above are for all capacity allocated to custom Virtual Machines (the smaller number) through to all capacity being allocated to File Share (the larger number).
Custom VM Memory capacity represents estimated RAM resources available to custom applications deployed in to Virtual Machines.
The Custom VM Memory value shown is ‘spare’ RAM after the core IT services running on the server has been allocated dedicated resources.
When considering the memory requirements of a custom Virtual Machine, refer to the software supplier’s requirement specification, and also account for the memory overhead of the Windows Server or Linux operating systems.
Virtual CPU Cores (vCores) allows CPU resources to be allocated to Custom VMs according to each application’s requirements. A single vCore is equivalent to a single Intel Xeon CPU hyperthread. As Intel Xeon CPUs support two hyperthreads per physical core the server’s vCore count is equal to double the physical CPU core count.
Using the Easy Connect Sizing Tool
To make selecting a server simpler, particularly when you want to analyze several different workloads or server options, an online sizing tool is available.
The Easy Connect Sizing Tool (http://www.zynstra.com/sizingtool/sizingtool-iframe.php) uses three-simple steps to determine whether your workload will fit on a selected Easy Connect server.
In the first column of the tools, enter the following information:
- User and Group File Share Size – Enter how much capacity needs to be allocated to the users’ working files. Note that any unallocated capacity on the server will be used to provide version history of these files, so there is no need to allocate extra capacity here if you want to maintain historic file versions.
- Number of Custom Virtual Machines – Select the quantity of additional, custom VMs required. All the core IT VMs are already accounted for, so just count extra VMs required for the customer’s own applications.
Then for each Custom VM assign values for:
- System Drive capacity – Including capacity for the operating system and application program files.
- Data Drive capacity – All application working file sets.
- RAM – Total memory to be allocated to the operating system and application.
- Virtual Cores – Assign a share of CPU resources. A Virtual Core (vCore) is equivalent to a single hyper thread on the server’s Intel Xeon CPU.
Choose Your Server
The second column of the tool lets you choose an Easy Connect server before comparing its ability to meet the workload’s requirements
Select a server from the Server Options list at the top of the second column. The selected server’s physical hard disk capacity, RAM and CPU are then shown below.
The third column of the tool shows how much server capacity your workload consumes, and any remaining unused capacity.
This is shown in pie-chart for each of the server’s resources - Storage, RAM and CPU vCores.
Each pie-chart shows:
- Capacity that has been reserved for the system and core IT services.
- Capacity allocated to your workload, both File Share and Custom VMs combined
- Spare capacity
The Server Storage pie-chart also reports on how much capacity has been automatically allocated to local back-up:
- Local back-up is dedicated capacity which holds the daily backup of the File Share and VM data.
In addition to the reserved local backup capacity, spare storage capacity automatically contributes to additional File Share local version history.
If the workload requirements exceed the server’s capacity, the pie-chart will change to red. In this case, you should select a different server or reduce your workload requirements.
For each capacity pie-chart, if the total available capacity is not exceeded, your workload can be supported by the selected server.
To conclude, we have looked at how you can choose the right server to meet the customer’s technical IT requirements.
Right-sized hardware designed for the core functions of Easy Connect servers means you only have to focus on the custom business application requirements and user file storage needs. A basic understanding of the customer’s own applications and each one’s compute resource requirements are all that is needed to ensure you select the right Easy Connect server.