The high-availability software architecture of the SAN384B-2 provides a common
framework for all applications that reside on the system, allowing global and local
status 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 SAN384B-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
Each control processor contains one serial port and two Ethernet ports, for
management and for service. 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 SAN384B-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
v
Vertical cable management finger assemblies to accommodate the horizontal
orientation of the blades
8
SAN384B-2 Installation, Service, and User Guide
Содержание SAN384B-2
Страница 2: ......
Страница 8: ...vi SAN384B 2 Installation Service and User Guide ...
Страница 12: ...x SAN384B 2 Installation Service and User Guide ...
Страница 14: ...xii SAN384B 2 Installation Service and User Guide ...
Страница 16: ...xiv SAN384B 2 Installation Service and User Guide ...
Страница 28: ...xxvi SAN384B 2 Installation Service and User Guide ...
Страница 32: ...xxx SAN384B 2 Installation Service and User Guide ...
Страница 82: ...50 SAN384B 2 Installation Service and User Guide ...
Страница 146: ...114 SAN384B 2 Installation Service and User Guide ...
Страница 172: ...140 SAN384B 2 Installation Service and User Guide ...
Страница 182: ...Taiwan Class A Electronic Emission Statement 150 SAN384B 2 Installation Service and User Guide ...
Страница 187: ...WWN bezel 65 card status 65 WWN bezel installing 88 removing 88 WWN card failure 65 removing 88 Index 155 ...
Страница 188: ...156 SAN384B 2 Installation Service and User Guide ...
Страница 189: ......
Страница 190: ... Part Number 98Y2654 Printed in USA GA32 0894 03 1P P N 98Y2654 ...