IBM 86655RY Hardware Maintenance Manual - Page 149

Installing and configuring ServeRAID controllers This section contains information about the features and connector locations of the ServeRAID-4H controller, the ServeRAID-4L controller, and the ServeRAID-4M controller (hereafter sometimes referred to as IBM ServeRAID-4x Ultra-160 SCSI controllers), and describes the following steps needed to install and configure the controller: Step 1. Update the BIOS and firmware on any existing controllers using the 4.10 software Step 2. Install and cable the ServeRAID controller Step 3. Update BIOS and firmware code Step 4. Configure the ServeRAID controller Information for obtaining ServeRAID updates is included at the end of the chapter. Features and connector locations of ServeRAID-4H controller This section contains important information on the controller features and connector locations. Controller features Standard features of the ServeRAID-4H controller are as follows. Feature Arrays (max.) Battery-backup cache Cache memory Hard disk drives (max.) Logical drives (max.) Microprocessor SCSI channels SCSI transfer speed (max.) Supported RAID levels System PCI data bus Connector locations ServeRAID-4H 8 Yes 128 MB 60 8 266 MHz 4 160 MB per sec. 0, 1, 5, Enhanced-1 (1E), and Enhanced-5 (5E), 00, 10, 1E0, 50 64 bit at 33 MHz This section provides illustrations of the SCSI channel connectors and cable connectors for the ServeRAID-4H controller. The light-emitting diodes (LEDs) on the controllers indicate activity on the SCSI channels and provide diagnostic information for trained service technicians. © Copyright IBM Corp. 1999, 2000 139