Falcon 24 Dual Fibre Installation and Hardware Reference Manual
•
Data paths connecting each host computer each has a failsafe
counterpart. In the event of host link or server failure, data access can
be continued through the redundant data path.
•
Bypass is provided on the host I/O modules in this configuration.
•
It is advised to connect the primary RAID subsystem to the secondary
RAID subsystem using redundant data links.
•
The array volumes in the two (2) cascaded RAID subsystems are
separately configured but presented on the same FC channels (CH0 and
CH1 of the two subsystems are connected) each using different host IDs.
•
Depending on I/O characteristics, each configured array should be
properly optimized either for Random or Sequential I/Os.
4.5 Power On
Once all of the components have been installed in the FALCON and the host
channels have been connected, the subsystem can be powered on.
4.5.1 Check List
BEFORE
powering on the FALCON, please check the following:
‰
Memory module:
Memory modules have been correctly installed
on the controller boards.
‰
BBU:
If being used, make sure the optional BBU has been installed
correctly in the FALCON.
‰
Hard drives:
Hard drives have been correctly installed in the drive
trays.
‰
Drive trays:
All the drive trays, whether or not they contain a hard
drive, have been installed into the subsystem.
‰
DIP switch settings:
All the appropriate DIP switch settings have
been made. The hub has been enabled/disabled (as required) and
the speed of the host channel selected as automatically negotiated
or fixed at 1Gbps.
‰
Cable connections:
The subsystem has been correctly connected to
host computer(s), external devices, and/or cascaded subsystems.
‰
Power cables:
The power cords have been connected to the PSUs
on the subsystem and plugged into the main power source.
‰
Ambient temperature:
All the subsystem components have been
acclimated to the surrounding temperature.
4-14
Power On
