Reliability
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Hardware Overview
Reliability
The ED-DCX-4S-B uses the following error detection and correction
mechanisms to ensure reliability of data:
◆ Error Detection and Correction mechanism, which checks for
encoder errors and fault isolation (EDFI), such as cyclic
redundancy checking (CRC), parity checking, checksum, and
illegal address checking.
◆ Power-on self-test (POST).
◆ Dual control processors that enable hot, nondisruptive fast
firmware upgrades.
◆ One serial port and two Ethernet ports (on each control
processor) for management and for service. Offline control
processor diagnostics and remote diagnostics simplify
troubleshooting. The standby control processor monitors
diagnostics to ensure it is operational, should a failover be
necessary.
◆ Bus monitoring and control of blades and other field-replaceable
units (FRUs).
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