IBM SAN768B-2, Installation, Service And User Manual

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Reliability
The SAN768B-2 uses the following error detection and correction mechanisms to
ensure reliability of data:
v Error Detection and Correction over main control processor memory
v
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
v Power-on self test (POST)
v
Dual control processors that enable hot, nondisruptive fast firmware upgrades
v
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 the system is operational should a failover be necessary.
v Bus monitoring and control of blades and other field-replaceable units (FRUs).
Serviceability
The SAN768B-2 provides the following features to enhance and ensure
serviceability:
v Modular design with hot-swappable components
v
Flash memory that stores two firmware images per control processor
v
USB port on control processor blades for most tasks that formerly required an
FTP/SCP server, including software and firmware upgrades
v Nonvolatile random-access memory (NVRAM), containing the OEM serial
number, IBM serial number, revision information, and part number information
v
Background health-check daemon
v Memory scrubber, self test, and bus ping to determine if a bus is not functioning
v
RASlog messages
v SMI-S compliant
v
Hardware and software watchdog timers.
v Status LEDs
v Predictive diagnostics analysis through Fabric Watch
v
SNMP (including version 3) integration with higher-layer managers
Software features
The Fabric OS allows any Fibre Channel-compliant device to attach to the switches
as long as it conforms to the device login, name service, and related Fibre Channel
standards. Each operating environment requires that a Fibre Channel host bus
adapter (HBA) be available with a standards-compliant driver for correct interface
to the fabric.
Fabric OS consists of a set of embedded applications running on top of an
embedded Linux operating system kernel. Some of these applications include:
v Name server
v
Alias server
v Zone server
v
Simple Network Management Protocol (SNMP) agent
v SMI-S compliant API
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SAN768B-2 Installation, Service, and User Guide