D-Link DSN-654 User Manual for DSN-6410 - Page 142
From single controller to dual controllers
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C. From single controller to dual controllers This SOP applies to upgrading from the DSN-6410 to DSN-6410 with DSN-640. Before you do this, please make sure that the DSN-6410 is properly installed according to the manuals, especially the HDD trays. If you are NOT using SAS hard drives, you need to use HDD trays with either multiplexer board or bridge board to install your HDDs in order to utilize the dual controller mode features. Otherwise, the IP SAN system will not be able to recognize the HDDs. Before you can insert the second controller to the IP SAN storage, the IP SAN storage system should be up and running and looks like the following screenshot in "Maintenance\System". Note that the status is single and you have one controller only. You can also verify controller mode in "Maintenance\Upgrade". Check out the "Controller Mode" section. 142