8 Brocade DCX 8510-4 Backbone Hardware Reference Manual
53-1002177-06
High availability
1
High availability
The following features contribute to the Brocade DCX 8510-4 high-availability design:
• Redundant, hot-swappable FRUs, including blades, power supplies, blowers, and WWN cards
• Enhanced data integrity on all data paths
• Fabric Shortest Path First (FSPF) rerouting around failed links
• Integration with Simple Network Management Protocol (SNMP) managers
• Automatic control processor failover
• Nondisruptive “hot” software code loads and activation
• Easy configuration, save, and restore
The high-availability software architecture of the Brocade DCX 8510-4 provides a common
framework for all applications that reside on the system, allowing global and local states to be
maintained through any component failure. High-availability elements consist of the High
Availability Manager, the heartbeat, the fault/health framework, the replicated database,
initialization, and software upgrade.
The High Availability Manager controls access to the standby control processor, facilitates software
upgrades, prevents extraneous CP failover activity, closes and flushes streams, provides flow
control and message buffering, and supports a centralized active and standby state.
Reliability
The Brocade DCX 8510-4 uses the following error detection and correction mechanisms to ensure
reliability of data:
• Error Detection and Correction over main control processor memory.
• 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).
Storage encryption
blade
FS8-18 The FS8-18 blade enables data cryptographic
(encryption/decryption) and data-compression capabilities for
data-at-rest. It has 16 Fibre Channel optical SFP ports. This
application blade is compatible with the Brocade DCX 8510-8,
Brocade DCX 8510-4, Brocade DCX, and Brocade DCX-4S and
requires Fabric OS v7.0.0 or later to run in the 8510-4 and 8510-8
chassis.
FCIP extension blade FX8-24 The FX8-24 blade enables FCIP functionality over existing IP
infrastructure. It has 12 FC ports, ten 1 GbE ports, and two 10
GbE ports available. This application blade is compatible with the
Brocade DCX 8510-8, Brocade DCX 8510-4, Brocade DCX, and
Brocade DCX-4S and requires Fabric OS v7.0.0 or later to run in
the 8510-4 and 8510-8 chassis..
Description Name Function