6947ch08.fm Draft Document for Review April 7, 2004 6:15 pm
204 IBM eServer zSeries 990 Technical Guide
On/Off CoD right to use feature without transferring ownership. This might be desirable if the
customer wants to put CBU on the z990 server, or simply wants to put business controls in
place that prevent On/Off CoD from being used in the future. Application of feature code 9898
will terminate the right to use On/Off CoD. This feature cannot be ordered if a temporary
session is already active. Similarly, CIU cannot be removed if a temporary session is active.
Anytime CIU is removed, the On/Off CoD right to use will be simultaneously removed.
Reactivating of the right to use feature will subject the customer to whatever terms and fees
apply at that time.

Upgrade Capability during On/Off CoD

No upgrades involving physical hardware will be supported while an On/Off CoD upgrade is
active on a particular z990 server. However, LIC-only upgrades can be ordered and retrieved
from RETAIN but not applied while an On/Off CoD upgrade is active. LIC-only memory
upgrades can be retrieved and applied while an On/Off CoD upgrade is active.

Repair capability during On/Off CoD

If the z990 server requires service while an On/Off CoD upgrade is active, the repair and
verify code (R&V) will automatically deactivate the On/Off CoD upgrade. At the end of the
repair, R&V will retrieve a new LIC record from RETAIN to replace the record that was
deactivated. The On/Off CoD upgrade will be activated to the state prior to R&V, including
restoration of the original activation date.

Monitoring

When the customer activates an On/Off CoD upgrade, an indicator is set in VPD data. This
indicator is part of the call home data transmission which is sent on a scheduled basis. A time
stamp is placed into call home data when the facility is deactivated. The CIU application
monitors TSAD transmissions. At the end of each calendar month, CIU will send a note to
generate an invoice for On/Off CoD used during that month.

Software

Software PSLC customers will be billed at the MSU level represented by the combined
permanent and temporary capacity. All PSLC products will be billed at the peak MSUs
enabled during the month, regardless of usage. Customers with WLC licenses will be billed
by product at the highest 4 hour rolling average for the month. In this instance, temporary
capacity will not necessarily increase the customer's software bill until that capacity is
allocated to logical partitions and actually consumed.
Results from the STSI instruction will reflect the current permanent plus temporary CPs. See
Table 6-3, “Minimum z/VM, z/VSE, VSE/ESA, TPF and Linux on zSeries Requirements” on
page 148 for more details.
8.5 Capacity BackUp (CBU)
Capacity BackUp (CBU) is offered with the z990 servers to provide reserved emergency
backup processor capacity for unplanned situations where customers have lost capacity in
another part of their establishment and want to recover by adding the reserved capacity on a
designated z990 server.
CBU is the quick, temporary activation of Central Processors (CPs), up to 90 days, in the face
of a loss of customer processing capacity due to an emergency or disaster/recovery situation.
Note: CBU is for disaster/recovery purposes only and cannot be used for peak load
management of customer workload.