Which previously unsupported management feature does HMC V7R760 bring to Power Blade servers?

HMC V7R760 added Dual VIO Server management capability to Power Blade servers, which was a previously unsupported configuration on that platform. Dual VIO Servers provide redundant virtual I/O paths so that if one VIO Server fails, client LPARs continue accessing storage and network resources through the second. This enhancement brought Power Blade servers to feature parity with rack-mount Power Systems for high-availability virtual I/O configurations.

Hypervisor Mirroring is not a recognized IBM Power Systems management feature that was introduced by HMC V7R760 for Power Blade servers.

N_Port ID Virtualization (NPIV) for Fibre Channel was already supported on Power Systems prior to HMC V7R760 and was not the feature newly enabled for Power Blade in that release.

Active Memory Sharing is a POWER6+-era memory virtualization feature that predates HMC V7R760 and was not the management capability newly introduced for Power Blade servers in that version.