IBM 86655RY Hardware Maintenance Manual - Page 153
Features and connector locations of ServeRAID-4M controller, Feature, ServeRAID-4M
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Features and connector locations of ServeRAID-4M controller This section contains important information on the controller features and connector locations. Controller features Standard features of the ServeRAID-4M 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-4M 8 Yes 64 MB 30 8 100 MHz 2 160 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-4M controller. The light-emitting diodes (LEDs) on the controllers indicate activity on the SCSI channels and provide diagnostic information for trained service technicians. SCSI channel connectors The ServeRAID-4M controller has two independent SCSI channel connectors: Channel 1 and Channel 2. Each of these SCSI channels supports up to 15 physical devices. Installing and configuring ServeRAID controllers 143
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