Temporary Upgrades - IBM z13s Technical Manual

Activate channels.
Activate cryptographic engines.
Change specialty engine (recharacterization).
Add zBX features. Blades can only be added if Blade entitlement is already present.
Important: Most of the MESs can be concurrently applied without disrupting the existing
workload (see 8.2, "Concurrent upgrades" on page 317 for details). However, certain MES
changes are disruptive (for example, an upgrade of Model N10 to N20, or adding memory).
Permanent upgrades initiated through CIU on IBM Resource Link
Ordering a permanent upgrade by using the CIU application through the IBM Resource Link
enables you to add capacity to fit within your existing hardware:
Add model capacity.
Add specialty engines.
Add memory.
Activate unassigned model capacity or IFLs.
Deactivate activated model capacity or IFLs.

8.1.4 Temporary upgrades

IBM z13s servers offer the following types of temporary upgrades:
On/Off CoD
This offering enables you to temporarily add more capacity or specialty engines due to
seasonal activities, period-end requirements, peaks in workload, or application testing.
This temporary upgrade can only be ordered by using the CIU application through the
Resource Link.
CBU
This offering enables you to replace model capacity or specialty engines to a backup
server during an unforeseen loss of server capacity because of an emergency.
CPE
This offering enables you to replace model capacity or specialty engines due to a
relocation of workload during system migrations or a data center move.
CBU or CPE temporary upgrades can be ordered by using the CIU application through
Resource Link, or by calling your IBM marketing representative. Temporary upgrades
capacity changes can be billable or replacement capacity.
Billable capacity
To handle a peak workload, processors can be activated temporarily on a daily basis. You can
activate up to twice the purchased millions of service units (MSU) capacity of any PU type.
The one billable capacity offering is On/Off CoD.
Replacement capacity
When processing capacity is lost in another part of an enterprise, replacement capacity can
be activated. It enables you to activate any PU type up to the authorized limit.
Two replacement capacity offerings exist:
CBU
CPE
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IBM z13s Technical Guide