8.1.2 CoD for z15 systems-related terminology The most frequently used terms that are related to CoD for z15 systems are listed in  Table 8-1. Table 8-1 CoD terminology 334  IBM z15 (8561) Technical Guide Term Description Activated capacity Capacity that is purchased and activated. Purchased capacity can be greater than the activated  capacity. Billable capacity Capacity that helps handle workload peaks (expected or unexpected). The one billable offering  that is available is On/Off Capacity on Demand (OOCoD). Capacity Hardware resources (processor and memory) that can process the workload can be added to  the system through various capacity offerings.  Capacity Backup (CBU) Capacity Backup allows you to place model capacity or specialty engines in a backup system.  CBU is used in an unforeseen loss of system capacity because of an emergency or for Disaster  Recovery testing.  Capacity for Planned  Event (CPE) Used when temporary replacement capacity is needed for a short-term event. CPE activates  processor capacity temporarily to facilitate moving systems between data centers, upgrades,  and other routine management tasks. CPE is an offering of CoD. Capacity levels Can be full capacity or subcapacity. For the z15 system, capacity levels for the CP engine are  7, 6, 5, and 4. Capacity setting Derived from the capacity level and the number of processors.  For the z15 system, the capacity levels are 7 nn , 6 yy , 5 yy , and 4 xx , where  xx ,  yy,  or  nn  indicates  the number of active CPs. The number of processors can have the following ranges:  GLYPH<SM590000> 0 - 34 for capacity levels 4 xx . An all IFL or an all ICF system has a capacity level of 400. GLYPH<SM590000> 1 - 34 for capacity levels 5 yy  and 6 yy . GLYPH<SM590000> 1 - 99 in decimal and A0 - J0, where A0 represents 100 and J0 represents 190, for capacity  level 7 nn . Customer Initiated  Upgrade (CIU) A web-based facility where you can request processor and memory upgrades by using the IBM  Resource Link and the system’s Remote Support Facility (RSF) connection. Capacity on Demand  (CoD) The ability of a system to increase or decrease its performance capacity as needed to meet  fluctuations in demand. Capacity  Provisioning  Manager (CPM) As a component of z/OS Capacity Provisioning, CPM monitors business-critical workloads that  are running z/OS on  z15 systems.  Customer profile This information is on Resource Link and contains client and system information. A customer  profile can contain information about systems that are related to their IBM customer numbers.  Full capacity CP  feature For z15 servers, feature (CP7) provides full capacity. Capacity settings 7nn are full capacity  settings with the ranges of 1 - 99 in decimal and A0 - J0, where A0 represents 100 and J0  represents 190, for capacity level 7 nn . High-water mark Capacity that is purchased and owned by the client. Installed record The LICCC record is downloaded, staged to the Support Element (SE), and is installed on the  central processor complex (CPC). A maximum of eight different records can be concurrently  installed.