6760 ServerNet/DA Manual

Introduction to the 6760 ServerNet/DA

6760 ServerNet/DA Manual—424879-003

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Power-Failure Recovery

NonStop S-series systems can stay operational for up to 30 seconds during a power

outage. This means that during any short power outage, the 6760 adapter remains

operational, while any modular disk and tape subsystems that were migrated from

NonStop K-series systems do not.

To avoid any possibility of a data integrity problem, any time that the system software

detects a power outage, the device state for the external disk drives and tape drives is

changed to DOWN. When power is normal again, the operator must restart these

devices to bring them back online using SCF commands.

For details on this topic, see Power-Failure Recovery on page 4-19.