NonStop NS1000 Planning Guide (H06.08+)

Disk GMSB
1
Fibre Channel Port GMSPDisk Volume Name
100.213.103100.2.1.3 and 100.3.1.3$AUDIT (primary 2)
100.213.104100.2.1.3 and 100.3.1.3$OSS (primary 2)
100.214.101100.2.1.4 and 100.3.1.4$SYSTEM (mirror 2)
100.214.102100.2.1.4 and 100.3.1.4$DSMSCM (mirror 2)
100.214.103100.2.1.4 and 100.3.1.4$AUDIT (mirror 2)
100.214.104100.2.1.4 and 100.3.1.4$OSS (mirror 2)
1 For an illustration of the factory-default slot locations for an FCDM, see “Factory-Default Locations for Disk Volumes”
(page 84).
Daisy-Chain Configurations
When planning for possible use of daisy-chained disks, consider:
Requirements for Daisy-Chain
1
Daisy-Chained Disks Not
Recommended
Daisy-Chained Disks Recommended
for
All daisy-chained FCDMs reside in the
same cabinet and are physically
grouped together.
Many volumes in a large Fibre
Channel loop. The more volumes that
exist in a larger loop, the higher the
potential for negative impact from a
failure that takes down a Fibre
Channel loop.
Cost-sensitive storage and
applications using low-bandwidth
disk I/O.
ID expander harness with terminators
is installed for proper FCDM and drive
identification.
Applications with a highly mixed
workload, such as transaction data
bases or applications with high disk
I/O.
Low-cost, high-capacity data storage
is important.
Fibre Channel ports for each Fibre
Channel loop are installed in a
different VIO enclosure for fault
tolerance.
Two FCDMs minimum, with four
FCDMs maximum per daisy chain.
1 See “Fibre Channel Devices” (page 82).
This illustration shows an example of cable connections between two Fibre Channel ports (one
on each VIO enclosure) and four FCDMs in a single daisy-chain configuration:
88 System Configuration Guidelines