A z14 ZR1 is configured for Capacity Marker W06 and 6 IFLs. At the time of purchase, the customer had not expected growth. Therefore, the CPC was configured as a Max12 (FC#0637). However, additional…

Question

Options

• ADepending on the type of specially engine (IFL, ICF, zIIP, or SAP) the additional resource can be
• BNone. The upgrade is done by changing the microcode and can be activated concurrently.
• CA change in the z14 ZR1 CPC drawer feature upgrade is disruptive. The additional engine will
• DAll IBM software contracts have to be checked and amended to include the new zIIP engine.

• A
  4% (2)
• B
  77% (37)
• C
  6% (3)
• D
  13% (6)

Explanation

On the z14 ZR1 configured with FC#0637 (Max12), the system already supports up to 12 engines in its drawer - since only 6 IFLs are installed, there is physical headroom remaining. Adding a zIIP engine within that Max12 capacity ceiling is achieved purely through a microcode (firmware) change, which IBM can activate concurrently without taking the system offline.

Why the distractors fail:

• A implies the engine type determines whether an upgrade is possible, but the binding constraint here is whether Max12 capacity is exceeded - it is not, so the type is irrelevant to the upgrade process.
• C claims the drawer upgrade is disruptive, which would only apply if the customer needed to exceed the Max12 limit and required a physical CPC drawer reconfiguration - that situation does not exist here.
• D is a tempting distractor because zIIP engines do affect software licensing in real life, but that consideration is outside the scope of the hardware upgrade procedure being asked about, and it is not a requirement of this upgrade path.

Memory tip: Anchor on "Max12 = microcode headroom." When a z14 ZR1 has spare capacity under its installed maximum (FC#0637 = 12 engines), new engines are switched on via a concurrent firmware activation - no hardware, no disruption, no drama.

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