IBM z13s, Technical Manual

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Chapter 8. System upgrades
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LPARs might also have to free the PUs to be converted, and the OSs must have support to
configure processors offline or online for the PU conversion to be done non-disruptively.
8.2.2 Customer Initiated Upgrade facility
The CIU facility is an IBM online system through which a customer can order, download, and
install permanent and temporary upgrades for z Systems servers. Access to and use of the
CIU facility requires a contract between the customer and IBM, through which the terms and
conditions for use of the CIU facility are accepted.
The use of the CIU facility for a server requires that the online CoD buying feature code
(FC 9900) is installed on the server. The CIU facility itself is controlled through the permanent
upgrade authorization feature code (FC 9898).
After you place an order through the CIU facility, you will receive a notice that the order is
ready for download. You can then download and apply the upgrade by using functions that are
available through the Hardware Management Console (HMC), along with the RSF. After all
the prerequisites are met, you perform the entire process, from ordering to activation of the
upgrade.
After the download, the actual upgrade process is fully automated, and does not require any
onsite presence of IBM service personnel.
CIU prerequisites
The CIU facility supports LICCC upgrades only. It does not support I/O upgrades. All
additional capacity that is required for an upgrade must be previously installed. An additional
CPC drawer or I/O cards cannot be installed as part of an order placed through the CIU
facility. The sum of CPs, unassigned CPs, ICFs, zIIPs, IFLs, and unassigned IFLs cannot
exceed the PU count of the installed drawers. The number of zIIPs (each) cannot exceed
twice the number of purchased CPs.
CIU registration and agreed contract for CIU
To use the CIU facility, a customer must be registered and the system must be set up. After
completing the CIU registration, access the CIU application through the IBM Resource Link
website:
http://www.ibm.com/servers/resourcelink/
LICCC-based PU conversions: The LICCC-based PU conversions require that at least
one PU, either CP, ICF, or IFL, remains unchanged. Otherwise, the conversion is
disruptive. The PU conversion generates a new LICCC that can be installed concurrently in
two steps:
1. The assigned PU is removed from the configuration.
2. The newly available PU is activated as the new PU type.
PU conversion: Customer planning and operator action are required to use concurrent PU
conversion. Consider the following information about PU conversion:
򐂰 It is disruptive if
all
current PUs are converted to separate types.
򐂰 It might require individual LPAR outages if dedicated PUs are converted.
Unassigned CP capacity is recorded by an MCI. CP feature conversions change (increase
or decrease) the MCI.