# ITOM-ESM-License-Units-conversion_688996323
## Introduction

This page presents the conversion of ITOM ESM License unit to sizing units.

## Principles

1. SMAX  
	2 SMAX License Unit = 2 Named Users or 1 Concurrent User.
	| Suite Product | License Unit | Licensed User | Sizing factor |
	| --- | --- | --- | --- |
	| SMAX | 2 | 2 Named User or 1 Concurrent User (Both of them are licensed users) | 1 Licensed User = 2.5 Online User |
2. CMS
	1. 1 Unit = 1 UD Full license
		2. Everything else is a ratio of the UD Full License
		| Type | Server (Unit) | Workstation (Unit) | Docker (Unit) |
		| --- | --- | --- | --- |
		| Premium Discovery (UD Full) | 1 | 0.1 | 0.1 |
		| Express Discovery (UD Inventory) | 0.1 | 0.1 | 0.1 |
		3. There is a simple calculation for CIs: 1 Full License / Asset Discovery License = 1000 CIs
3. OO
	1. Premium SMAX license will get two OO workflow for free.

## Example

1. There is one order with 1430 SMAX Units + 6500 UD Units.
	1. SMAX:  
		It can be 1430 named users or 715 concurrent users. So the online user range is 715 ~ 1430 x 2.5 = 1787.5 ~ 3575 Online users.  
		According to [SMAX/ESM Sizing considerations for EKS deployment](https://docs.microfocus.com/doc/SMAX/23.4/EKSSizing), it's medium to **large sized SMAX**.
		2. CMS:  
		6500 UD Units is 6.5 million CIs. Normally ESM offer two sets of tenants: development and production. Then it's 13 million CIs in total. If it's an order with SMAX Premium, there will be more free CI being generated in CMS. Adding 50% to 100% here, then it's 19.5 to 26 million CIs.  
		According to CMS Section in [SMAX/ESM Sizing considerations for EKS deployment](https://docs.microfocus.com/doc/SMAX/23.4/EKSSizing), it's **medium sized CMS**.
		3. OO:  
		**Small sized OO** if there is only one.

## FAQ

1. Why the CMS size is doubled and SMAX is not doubled due to two tenants?  
	A: For SMAX, normally customer won't share dev tenant to end users, so there is very few users on Dev tenant. For CMS, once the CI data is loading to CMS, it's consuming the CMS resources, that's the reason it's doubled.

## Reference

1. [SMAX/ESM Sizing considerations for EKS deployment](https://docs.microfocus.com/doc/SMAX/23.4/EKSSizing)
2. [Universal Discovery license overview](https://docs.microfocus.com/doc/UCMDB/2023.05/DscvrLicOvrvw)
3. [Universal Discovery and CMDB SaaS Service Description](https://www.microfocus.com/media/documentation/micro-focus-universal-discovery-and-cmdb-software-as-a-service-service-description-documentation.pdf)
4. [ITOM ESM PowerBI Report](https://app.powerbi.com/groups/fac06a69-6340-4715-b8fe-4bdc0ca9af14/list?experience=power-bi)
5. [AWS Cost Estimation Template for ESM SaaS 2023.05\_v1.2.xlsx](https://opentextcorporation-my.sharepoint.com/:x:/g/personal/jhuang4_opentext_com/EVGXfAyN_9tNsMOJ-SnnZvsB4orBiy9LLvrcHj-W4Rs08A?e=EtZUnk)
