A water-utility InfiniBand fabric reviews how a tenant should join its partition. What should operators choose carefully?
Select an answer to reveal the explanation.
Short Explanation
Not every badge opens every door the same way. Choose the right InfiniBand PKey membership type—limited versus full—for water-utility tenant security.
Full Explanation
On a water-utility InfiniBand fabric, operators must choose appropriate InfiniBand PKey membership types for tenant security—commonly distinguishing limited versus full membership semantics so not every HCA gets unrestricted partition rights. Membership type is part of how IB enforces who can communicate how within a partition and is a deliberate tenancy control, not an afterthought. Granting full membership for tenant HCAs to improve partition throughput fails by concept: blanket full membership over-privileges tenant endpoints and trades security for throughput gains on the civic fabric. Relying on the default InfiniBand PKey value for tenant traffic isolation fails because the default PKey does not by itself enforce tenant separation; membership types are meaningful in IB partition design and should be selected deliberately. Limiting membership for core fabric switches for tenant containment fails because membership policy is not enforced at the switches alone; tenant HCAs also need correct types, and scoping limited membership to core switches misses tenant endpoint risk. Exam caveat: NCP-AIN multi-tenancy includes membership-type selection, not only PKey ID assignment. Operational check: for each water-utility tenant HCA, assign the membership type required by policy (limited vs full as designed), verify partition communication matches intent, and avoid granting full membership to tenant HCAs solely to improve partition throughput.