FW 05.01.00 and SW 07.01.00 HP StorageWorks SAN High Availability Planning Guide (AA-RS2DC-TE, June 2003)

Physical Planning Considerations
122 SAN High Availability Planning Guide
The need for additional fiber-optic cabling could grow rapidly. More cables may
be required for connections to additional servers or storage devices, or for
connections to additional fabric elements as a multi-switch fabric is developed.
The director or switch may need to be moved for more efficient connection to
other units, but still maintain its original connections. To account for these
possibilities, consider installing excess fiber-optic cable, especially in hard to
reach places like underground trenches.
HAFM Server, LAN, and Remote Access Support
Out-of-band (non-Fibre Channel) console access to directors and switches is
provided to perform a variety of operations and management functions. These
functions are performed from one or more of the following consoles:
■ Through the HAFM server attached to an Ethernet port on a director control
processor (CTP) card or switch front panel.
■ Through a remote personal computer (PC) or workstation connected to the
HAFM server through a customer intranet.
■ Through a simple network management protocol (SNMP) management
workstation connected through the customer intranet.
■ Through a PC with a Web browser and Internet connection to the director or
switch through a LAN segment.
■ Through a PC with a direct serial connection to the director or switch
maintenance port. The maintenance port is used by installation personnel to
configure product network addresses.
HAFM Server
The HAFM server is mounted in a slide-out drawer in the equipment rack. The
server supports up to 48 HP directors or switches (managed products). The server
is used to configure products and the associated HAFM and Product Manager
applications, monitor product operation, change configurations, download
firmware updates, and initiate diagnostics.
An HAFM server failure does not affect port connections or functions of an
operational director or switch. The only operating effect of a server failure is loss
of remote access, configuration, management, and monitoring functions.