Concurrent Physical Memory Upgrade
Allows one or more physical memory cards on a single book to be added, or an existing card to be upgraded increasing the amount of physical memory in the system.
Concurrent Physical Memory Replacement
Allows one or more defective memory cards on a single book to be replaced concurrent with the operation of the system.
Concurrent Defective Book Replacement
Allows the concurrent repair of a defective book when that book is operating degraded due to errors such as multiple defective processors.
Enhanced Book Availability is exclusive to z10 EC and z9 EC.
Flexible Memory Option
Flexible memory was fi rst introduced on the z9 EC as part of the design changes and offerings to support enhanced book availability. Flexible memory provides the additional resources to maintain a constant level of memory when replacing a book. On z10 EC, the additional resources required for the fl exible memory confi gurations are provided through the purchase of preplanned memory fea- tures along with the purchase of your memory entitlement. In most cases, this implementation provides a
Redundant I/O Interconnect
z10 EC with Redundant I/O Interconnect is designed to allow you to replace a book or respond to a book failure and retain connectivity to resources. In the event of a failure or customer initiated action such as the replace-
ment of an
Enhanced Driver Maintenance
One of the greatest contributors to downtime during planned outages is Licensed Internal Code (LIC) updates. When properly confi gured, z10 EC is designed to permit select planned LIC updates.
A new query function has been added to validate LIC EDM requirements in advance. Enhanced programmatic internal controls have been added to help eliminate manual analy- sis by the service team of certain exception conditions.
With the z10 EC, PR/SM code has been enhanced to allow multiple EDM ‘From’ sync points. Automatic apply of EDM licensed internal change requirements is now limited to EDM and the licensed internal code changes update process.
There are several reliability, availability, and serviceability (RAS) enhancements that have been made to the HMC/SE based on the feedback from the System z9 Enhanced Driver Maintenance fi eld experience.
•Change to better handle intermittent customer network issues
•EDM performance improvements
•New EDM user interface features to allow for customer and service personnel to better plan for the EDM
•A new option to check all licensed internal code which can be executed in advance of the EDM preload or activate
Dynamic Oscillator Switchover
The z10 EC has two oscillator cards, a primary and a backup. For most cases, should a failure occur on the pri- mary oscillator card, the backup can detect it, switch over,
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