SMART ARRAY 642 CONTROLLER
Ultra320 SCSI Protocol 64MB DRAM cache 640-MB/s total; 320-MB/s per channel transfer rate 2.9 TB max capacity
PROTOCOL Ultra320 SCSI PI DATE: FEB 2002
CHANNEL TRANSFER RATE: 640-MB/s total; 320-MB/s per channel
SCSI ELECTRICAL INTERFACE: Low Voltage Differential (LVD)
DRIVES SUPPORTED: Up to 20 (6 internal and 14 external) Ultra 320, Ultra3
and Ultra2 SCSI hard drives
SCSI PORT CONNECTORS SA-642: One external and one internal SCSI port
DATA TRANSFER METHOD: 64-Bit PCI bus-master
PCI BUS SPEED: 64-bit, 133-MHz PCI-X (1 GB/s maximum bandwidth)
PCI: 3.3 volt CPI slot compatibility only
CACHE MEMORY: 64MB DRAM used for code, transfer buffers, and non-battery
backed read cache
LOGICAL DRIVES SUPPORTED: 32
MAXIMUM CAPACITY: 2.9 TB (20 X 146.8-GB)
MEMORY ADDRESSING: 64-bit, supporting servers memory greater than 4-GB
RAID SUPPORT: RAID 5 (Distributed Data Guarding) RAID 1+ 0 (Striping &
Mirroring) RAID 1 (Mirroring) RAID 0 (Striping)
UPGRADEABLE FIRMWARE: 2-MB Flashable ROM
DISK DRIVE AND ENCLOSURE PROTOCOL SUPPORT: Ultra 320, Ultra2 and Ultra3
* 2 Simultaneous Drive Transfer Channels
* SOFTWARE UPGRADEABLE FIRMWARE
* This Storage Controllers are qualified for SCSI drives only.
* Does not support the ATA Drives.