Capacity on Demand software licensing considerations

As you select software for activating Capacity on Demand (CoD) resources, you must consider how you would like to license your software. A number of methods are used to license software, such as per user, software tier, or per processor. Typically a tool, such as a license manager, is used to manage the licenses. A license manager detects use of the software, compares it to the entitlement, and then takes action based on the results. A license manager can be provided by IBM® (for example, Software License Manager) or can be made available by the software provider

These tables show CoD software licensing considerations for System i and System p.

Table 1. System i software licensing considerations
	IBM System i5® and eServer™ i5 software	Capacity Upgrade on Demand (permanent activations)	On/Off, Reserve, Utility, and Trial CoD (temporary activations)
Per user licensing	IBM and non-IBM middleware Independent software vendor (ISV) software	No Charge - User entitlement does not change when inactive processors are permanently activated	No Charge - User entitlement does not change when inactive processors are temporarily activated
Software tier licensing	IBM and non-IBM middleware ISV software	No Charge - Tier entitlement does not change when inactive processors are permanently activated	No Charge - Tier entitlement does not change when inactive processors are temporarily activated
Per processor licensing	i5/OS®, AIX®, Linux®	Per activation charge - One processor entitlement must be purchased for each permanently activated processor assigned to a partition that uses the software.	No Charge - Processor entitlement does not change when inactive processors are temporarily activated. Note: This rule might not apply to Linux, see your Linux distributor for details.
Per processor licensing	IBM middleware	Per activation charge - One processor entitlement must be purchased for each permanently activated processor assigned to a partition that uses the software.	Daily user charge - One processor day of entitlement must be purchased each time that any number of inactive processors are temporarily activated.

Table 2. System p Capacity on Demand software licensing considerations
	IBM System p5® and eServer p5 software	Capacity Upgrade on Demand (permanent activations)	On/Off, Reserve, Utility, and Trial CoD (temporary activations)
Per user licensing	IBM and non-IBM middleware Independent software vendor (ISV) software	No Charge - User entitlement does not change when inactive processors are permanently activated	No Charge - User entitlement does not change when inactive processors are temporarily activated
Software tier licensing	IBM and non-IBM middleware ISV software	No Charge - Tier entitlement does not change when inactive processors are permanently activated	No Charge - Tier entitlement does not change when inactive processors are temporarily activated
Per processor licensing	AIX, i5/OS, Linux IBM middleware	Per activation charge - One processor entitlement must be purchased for each permanently activated processor assigned to a partition that uses the software.	Daily use charge - One processor day of entitlement must be purchased each time, any number of inactive processors are temporarily activated. Notes: The daily use charge does not apply to AIX when using Trial CoD. One processor day of AIX and AIX Software Maintenance Agreement must be licensed for each 100 minute Utility CoD billing feature. The daily use charge does not apply to i5/OS when using On/Off, Reserve, or Trial CoD. The daily use charge does not apply to Linux. See your Linux distributor for details.