Fibre Channel ServerNet Adapter Installation and Support Guide (G06.28+, H06.03+)

Introduction to the FCSA
Fibre Channel ServerNet Adapter Installation and Support Guide—528254-012
1-17
Relationship to the Fibre Channel Disk Module
(FCDM)
Your overall strategy might affect which slots you select for the FCSA installation and
the paths you configure between the processors and the disks. Your strategy might
consist of general principles, such as:
•
Use mirroring
•
Use four processors
•
Use slots in different IOAM logical modules or different IOAM enclosures
•
Use LUNs in different ESS systems.
These decisions affect the choices of the SCF attributes for the SCF ADD DISK
command to the storage subsystem. (See Disk Configuration (ESS Connection) on
page 2-15.)
Relationship to the Fibre Channel Disk Module
(FCDM)
For Integrity NonStop NS-series systems, the FCSA provides connectivity to the
M8xxx Fibre Channel disks located in a Fibre Channel Disk Module (FCDM).
Before the FCDM is connected to the FCSA, you must use the SCF ADD command to
configure a dummy DISK object. This configuration step makes the disks in the FCDM
visible to OSM.
Figure 1-8 on page 1-18 shows an example of two paths from the processors through
the FCSAs to the storage subsystem.