IBM is moving Processor Value Unit licensing to Virtual Processor Core. The conversion math, the ILMT impact, and the audit risk to manage now.should demand before signing.
IBM is moving many products from the Processor Value Unit metric to the Virtual Processor Core metric, and each product carries its own conversion ratio between the two. The ratio, not the new rate alone, decides whether your entitlement still covers your estate.
Buyers who accept the conversion as a clerical swap miss the exposure. A ratio that understates your owned PVUs can leave you short on day one.
A VPC counts the virtual cores available to the IBM program, or the physical cores where no eligible virtualization is in place. Confirm how IBM counts cores in your specific environment before you sign the conversion.
Full capacity defaults, lapsed ILMT reporting, and unverified conversion ratios inflate the count. The VPC rate is rarely the cause on its own.
Where VPC exposure concentrates
| Lever | Buyer risk | Buyer move |
|---|---|---|
| Conversion ratio | Accepted from quote | Recompute from owned PVUs |
| Sub capacity | Lost without ILMT | Keep ILMT reporting current |
| Core counting | Full capacity by default | Prove eligible virtualization |
Recompute your entitlement from owned PVUs against the published product ratio before you accept the new VPC number. A ratio checked against your own license records protects the entitlement you already paid for.
Confirm the metric and sub capacity rules on the IBM sub capacity licensing page and verify the reporting requirement in the IBM License Metric Tool documentation before you complete the transition.
The standard reseller line is that the conversion is a like for like swap that protects your existing entitlement automatically. We disagree.
In the transitions Morten ran, default conversion ratios and lapsed ILMT reporting left buyers short of entitlement or stripped of sub capacity rights they had earned. The buyer side move is to recompute the entitlement from your own PVU records, keep ILMT current through the move, and get the conversion ratio fixed in writing before any renewal.
The buyer side move is to make your own entitlement records, not the vendor conversion sheet, the basis of the new count.
The safest VPC number is the one recomputed from the PVUs you already own and proven by current ILMT reports.
Reconcile, then convert. Your own entitlement records and live ILMT data, not the quote, set the new count.
Bring help in before the conversion is signed, while the ratio and the sub capacity rights are still open. The count you accept sets the cost until renewal.
Morten Andersen ran these IBM metric transitions himself. He will walk your conversion ratios and your sub capacity rights in a 30 minute call. No pitch.
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