Galaxy GHDX4 RAID iSCSI-SAS/SATA InstaHardware Reference Manual
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then deliver a “Redundant Controller Restored”
message.
You can check for this message in the LCD screen,
GUI manager, or firmware text-based utility. When
the replacement controller is successfully brought
online, its status Ready LED should light green on
its faceplate.
Replacing or Upgrading Memory Modules
Memory Module Installation Overview
The subsystem comes with a pre-installed 2GB (or above) DDR-
II RAM DIMM module. The controller supports a memory module
up to 4GB in size. If DDR-II RAM DIMM modules with a different
size need to be used or the original memory module is damaged
in some way, the pre-installed module can be removed and a
replacement installed. Replacement and installation instructions
are described fully below.
A DIMM socket is located on the controller main circuit board.
The controller board is a sensitive component and must be
treated with care.
Selecting Memory Modules
If the memory module on the controller module is going to be
replaced, the following factors must be considered when purchasing
replacement DIMM modules:
Purchasing a DIMM module:
To avoid the compatibility issues,
it is recommended to contact your subsystem vendor for an
updated list of compatible DIMM modules. We provide tested
modules from reliable vendors with reliable chips.
DDR-II RAM DIMM modules supported
: The subsystem
supports 240-pin, registered, ECC-capable DDR-II RAM DIMM
modules with memory capacities ranging from 2GB to 4GB.
Installation considerations:
When installing the DIMM module,
it is necessary to remove the controller module. The controller
board is more susceptible to damage than other components
and must therefore be handled with extreme care. ALL anti-static
precautions must be strictly adhered to.
Secure installation
: When replacing the DIMM module, make
sure that the new DIMM module is firmly in place prior to
installing the controller module. If the DIMM module is not firmly
in place, the subsystem will not run and the controller will need
to be removed and the DIMM module correctly installed.
