Although Capacity BackUp (CBU) and On/Off Capacity on Demand can both reside on the server, the activation of On/Off Capacity on Demand is mutually exclusive with CBU and no physical hardware upgrade will be supported while On/Off Capacity on Demand is active.
This important function for zSeries gives customers greater control and ability to add capacity to meet the require- ments of an unpredictable on demand application environ- ment. On/Off CoD extends zSeries capacity on demand offerings to the next level of fl exibility. It is designed to help customers match cost with capacity utilization and manage periodic business spikes. On/Off Capacity on Demand is designed to provide a low risk way to deploy new pilot applications, and it is designed to enable a cus- tomer to grow capacity smartly and proportionately with market demand.
Customers can also take advantage of the Capacity Upgrade on Demand (CUoD), Customer Initiated Upgrade (CIU), and Capacity BackUp (CBU) which are described later in the document.
On/Off CoD Test
IBM continues to enhance On/Off CoD to be more respon- sive to your on demand business requirements. On/Off CoD has been enhanced to allow for a
an On/Off CoD order. On/Off CoD tests which do exceed 24 hours in duration will be treated in their entirety as bill- able On/Off CoD upgrades. In addition to validating the On/Off CoD function within your environment, you may choose to use this test as a training session for your per- sonnel who are authorized to activate On/Off CoD.
On/Off CoD
On/Off CoD test is exclusive to z890 and z990.
The z890 is designed to offer an effi cient I/O structure using the same I/O cages as the z990. The single I/O cage z890, has the capability of plugging up to 28 I/O cards which would support a maximum of 420 ESCON® chan- nels. Seven of the eight available STIs on the z890 are required to support the 28 channel slots in the I/O cage.
The following chart shows the upgrade paths from z800 to z890 and from z890 to z990. The z800 Models 0X2, 0A2, 002, 003 and 004 can be upgraded to any capacity z890. Any z890 with more than 220 MIPS can be upgraded to a z990 Model A08. There are no upgrades from 9672 G5/G6 or z900 server.
z800 to z890 and z890 Model Upgrades
charges associated with temporary hardware capacity, IBM software, or IBM maintenance. This test can be used to validate the processes to download, activate, and deac- tivate On/Off CoD capacity nondisruptively. Each On/Off
24 hours commencing with the download and activation of
z800 z890
To Any Capacity Setting
0X2
0A2
002A04
may change to any capacity setting desired.
z800z890
12