APC RAID Subsystem SCSI-SATA II Specifications Page 83

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Appendix A Specifications
A.2. Controller Specifications
A.2.1 Configuration
Specification
RAID Levels 0, 1(0 + 1), 3, 5, 10, 30, 50, JBOD, and non-RAID disk spanning
Host O/S Compatibility Host O/S independent; supports all major platforms
Host Interface 2 SCSI-320 channels via 2 dual-stacked VHDCI connectors
Host Channels 2 pre-configured SCSI-320 host channels
Drive Interface
Supports up to 24 channels of 3Gbpas SATA-II, backward compatible to SATA-I
Drive Channels
All drive channels are pre-configured, routed through back-end PCB and can’t be changed
Cache Mode Write-through and write-back
Cache Memory
Pre-installed256MB DDR RAM DIMM, supports 2GB DDR RAM w/ECC,registered
Number of LUNs Up to 32 per SCSI ID
Multiple Target
IDs/Host Channel
Yes
Aliases for Target IDs Yes
Firmware on Flash
Memory
Yes
Drive Hot-swapping Yes
Controller Hot-swapping Yes (redundant controller models only)
A.2.2 Architecture
Specification
CPU 600MHz PowerPC 750FX
Host Channel Processor LSI 1030T
DIMM Slot One 184-pin DDR DIMM module
PC-133 Support Yes
ASIC RAID 64-bit chipset (ASIC266)
Flash ROM 64Mbit (8MB)
NVRAM 32Kb with RTC (Real-time Clock)
Hardware XOR Yes
I/O Channel Bandwidth 1-2GB/second
Real-time Clock
For event messages with time record tracking and scheduled
maintenance tasks, e.g., Media Scan.
Controller Specifications A-3
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