Configure Microsoft Exchange 2013 Server Role Requirements Calculator

Configure the Microsoft Exchange 2013 Server Role Requirements Calculator

Overview

Download the Microsoft Exchange Workload modeling spreadsheet from Microsoft Exchange 2013 Server Role Requirements Calculator. Read the Microsoft Exchange Calculator Readme file for comprehensive guidance on using the calculator.

Cisco HyperFlex Sizer provides the BOM for the primary datacenter only. This section provides the parameters that should be configured on the Input Tab of the Microsoft Exchange Calculator. Customers who plan to deploy in multiple datacenters and stretch the Database Availability Group (DAG) must complete the input for the secondary datacenter under Site Resilience Configuration. Completing this input ensures that the primary datacenter Compute and Storage requirements are properly sized to handle all users in the event that the secondary datacenter is down.

Exchange Environment Configuration

Configuration Settings

Value

Exchange Server Version

2016

Global Catalog Server Architecture

64-bit

Server Role Virtualization

Yes

High Availability Deployment

Yes

If a DAG is planned, ensure that High Availability Deployment is set to Yesand that the proper number of database copy instances are selected for each site.

Tier-1 [2,3,4] User Mailbox Configuration

Ensure that the user mailbox tiers are set to the appropriate initial and maximum mailbox sizes. With HyperFlex, adding additional persistent tier disks or adding converged nodes to the cluster expands the usable storage on the cluster automatically. Adding additional databases, expanding the HyperFlex datastore, or expanding the Windows LUN where an online database is located, is instant and can occur without any downtime.

Configuration Settings

Value

User Mailbox Configuration Settings

Number of Days in a Work Week field

5 days

Tier-1 User Mailbox Configuration field

Total Number of Tier-1 User Mailboxes / Environment field

10000 Tier-1 User Mailboxes/Environment

Projected Mailbox Number Growth Percentage field

0%

Total Send/Receive Capability / Mailbox / Day field

200 messages

Average Message Size (KB) field

75 KB

Initial Mailbox Size (MB) field

2048 MB

Mailbox Size Limit (MB) field

10240 MB

Backup Configuration

Configuration Settings

Value

Backup Methodology field

Backup Methodology can have a sizing impact. The recommended methodology is to utilize the Cisco HyperFlex native snapshot, along with a third-party backup application that will keep a copy of the backup off the cluster, typically in a backup repository.

The following backup methodology options are available:

  • (Recommended) Hardware VSS Backup/Restore—Requires the smallest amount of capacity to restore LUNs.

  • Software VSS Backup/Restore—Requires a larger capacity to restore LUNs.

  • Exchange Native Data Protection—Requires a larger capacity to restore LUNs.

  • VMware redo-log snapshots—Large restore LUNs must be provisioned on each Exchange Server to provide enough space to pull a copy of the backup and then enable roll forward recovery.

  • Exchange Native Data Protection with lagged database copies—Large restore LUNs must be provisioned on each Exchange Server to provide enough space to pull a copy of the backup and then enable roll forward recovery.

Backup Frequency field

Weekly Full or Daily Incremental

Backup/Truncation Failure Tolerance field

3

Network Failure Tolerance (Days) field

0 days

Storage Options

Configuration Settings

Value

Automatically Calculate Number of Exchange Database Volumes Required

Yes

If set to No, carefully size and ensure that enough Exchange Data Volumes are selected so that the databases fit on the server. If they do not fit, you will be unable to upload the spreadsheet into the Cisco HyperFlex Sizer, and a warning will appear on cell G216 on the Role Requirements tab.

Number of AutoReseed Volumes per Server

1 AutoReseed Volumes

Server Configuration

The Microsoft Exchange Calculator is based on a particular baseline CPU. To properly calculate the megacycle to actual CPU consumption, enter both the number of vCPUs for the Microsoft Exchange Server VM in Processor Cores / Server, and the SPECint2006 Rate Value for the Cisco HyperFlex Server. For example values, refer to SPEC CINT2006 Result.

Server Configuration

Processor Cores / Server

SPECint2006 Rate Value

Primary Datacenter Mailbox Servers

16

2330

Secondary Datacenter Mailbox Servers

16

2330

Troubleshooting

Error Message

Recommended Solution

One or more workloads have exceeded the maximum CPU limits.

Toggle to HX+Compute, or include All-Flash options if not already set. Split the Workload into smaller Workloads.

No SmartPlay hyperconverged nodes have been chosen, due to filters. Please change the filters.

For All-Flash Option, select SmartPlay Hyperconverged Nodes from the Customize option.