Compaq Infortrend manual Preparing Controllers, Cabling Requirements, Communications Channels

10.2Preparing Controllers

10.2.1Requirements:

Cabling Requirements:

Communications Channels:

-Controller Communications (Cache Synchronization) Paths:

Controller	RCC cable
SentinelRAID	A SCSI cable (CH 0)
EonRAID 2510FR	Dedicated RCC or RCC over drive loops
EonStor	Pre-configured RCC routes over the system
	backplane

-Using one or two of the I/O channels for controller communications (as listed above) is necessary especially when write-back caching is preferred. If controllers are running in write-back mode, a battery module is recommended for each controller.

-

-Use the default channel (CH 0) for the SentinelRAID controllers.

Out-of-Band Configuration

-RS-232C cable (for Terminal Interface Operation) connection.

-Ethernet connection: If management through Ethernet is preferred, connect the Ethernet interface from both controllers to ports on a hub. The IP address assigned to one controller will be inherited by the surviving controller.

Host and Drive Connection

-

-All channels on one controller must be connected to the same channels on its counterpart.

10-14 Infortrend