NonStop NS1000 Planning Guide (H06.05+)

System Configuration Guidelines
HP Integrity NonStop NS1000 Planning Guide—542527-004
6-14
Example Configurations of the IOAM Enclosure and
Fibre Channel Disk Module
•
Daisy-chain configurations follow the same configuration restrictions and rules that
apply to configurations that are not daisy-chained. (See Daisy-Chain
Configurations on page 6-17.)
•
Fibre Channel disk modules containing mirrored volumes must be installed in
separate daisy chains.
•
Daisy-chained configurations require that all Fibre Channel disk modules reside in
the same cabinet and be physically grouped together.
•
Daisy-chain configurations require an ID expander harness with terminators for
proper Fibre Channel disk module and disk drive identification.
•
After you connect all Fibre Channel disk modules in configurations of four FCSAs
and four Fibre Channel disk modules, with three Fibre Channel disk modules not
yet connected, connect them to the four FCSAs. (See the example configuration in
Four FCSAs, Three FCDMs, One IOAM Enclosure
on page 6-19.)
Example Configurations of the IOAM Enclosure and Fibre
Channel Disk Module
The Integrity NonStop NS1000 system implements IOAM enclosure and Fibre Channel
disk module configurations as shown in these example configurations.
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 6-15
Four FCSAs, Four FCDMs, One IOAM Enclosure 6-16
Daisy-Chain Configurations 6-17
Four FCSAs, Three FCDMs, One IOAM Enclosure 6-19