NonStop NS-Series Planning Guide (H06.04+)

System Configuration Guidelines
HP Integrity NonStop NS-Series Planning Guide—529567-005
6-23
Example IOAM and Fibre Channel Disk Module
Configurations
•
After you connect all Fibre Channel disk modules in configurations of four FCSAs
and four Fibre Channel disk modules, yet three Fibre Channel disk modules
remain not connected, connect them to the four FCSAs. (See the example
configuration in Four FCSAs, Three FCDMs, One IOAM Enclosure on page 6-30.)
Example IOAM and Fibre Channel Disk Module Configurations
These subsections show various example configurations of FCSA controllers and Fibre
Channel disk modules with IOAM enclosures.
Note. Although it is not a requirement for fault tolerance to house the primary and mirror disk
drives in separate FCDMs. the example configurations show FCDMs housing only primary or
mirror drives, mainly for simplicity in keeping track of the physical locations of the physical
drives.
Topic Page
Two FCSAs, Two FCDMs, One IOAM Enclosure 6-24
Four FCSAs, Four FCDMs, One IOAM Enclosure 6-25
Two FCSAs, Two FCDMs, Two IOAM Enclosures 6-26
Four FCSAs, Four FCDMs, Two IOAM Enclosures 6-27
Daisy-Chain Configurations 6-28
Four FCSAs, Three FCDMs, One IOAM Enclosure 6-30