143
9 Identifying the RAID Controller
Board
The RAID controller board is a high-performance PCI SCSI controller that manages the disk
array of the host server. Three versions of the RAID controller board are used in conjunction
with Intergraph’s host servers: DAC960P, DAC960PD, and MegaRAID.
DAC960P Controller
DAC960P has two independent RAID SCSI bus channels (0 and 1), each using a separate
53C720 SCSI controller. This allows the system to read or write data on several disk drives
simultaneously. The DAC960P RAID controller board is shown in the following figure.
Channel 1 is the default internal RAID SCSI connector.
CAUTION
Ensure jumpers are installed as shown or erratic operation will occur.
SCSI
Controllers
(53C720)
i960
RISC
Processor
Channel 0
(External)
Channel 0
Channel 1 (Internal)
Flash
EEPROM
Cache
Memory
JP5
JP3
Summary of Contents for InterRAID-12
Page 1: ...InterRAID Hardware User s Guide January 1997 DHA018210 ...
Page 4: ......
Page 121: ...106 ...
Page 157: ...142 ...
Page 163: ...148 ...
Page 171: ...156 ...