Notes On This Configuration; Power On; Check List - Rorke Data Galaxy 16i User Manual

4.7.2 Notes on This Configuration

1. A configured array (logical drive) is accessed through two
different host ports. LD0 is accessed through the Primary
controller's host ports, LD1 the Secondary controller's host
ports. During normal operation, LD0 is presented as two
different IDs. The host computer should be installed with a
multi-path software to manage I/O distribution.
2. In the event of a RAID controller or cabling component
failure, all activities will be inherited by the surviving
controller. The arrays will be accessed through the host ports
that have a valid connection.
3. Multiple IDs may then coexist on single host port. If the
failed controller is replaced afterwards, the original
configuration will be restored and the workload can once
again be shared between the controllers.

4.8 Power On

Once all the components have been installed in the Galaxy 16i
subsystem and the host channels have been connected to the host
and the expansion cables have been connected to the JBODs, the
subsystem can be powered on.

4.8.1 Check List

BEFORE powering on the Galaxy 16i subsystem, please check
the following:
1. Memory Modules – Memory modules have been correctly
installed on the controller boards.
Galaxy 16i User's Manual
Each host port now presents both controllers' IDs.
Data access is virtually unaffected, provided host has
multi-path software that is capable of re-directing data
access.
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