Справочник Пользователя для Infortrend A12U/A08U-G2421

Appendix A: Subsystem Features 

 

A.2 Controller 

Specifications 

 

Specification 

 

RAID Levels 

0, 1(0 + 1), 3, 5, 10, 30, 50, JBOD, and non-RAID disk 
spanning 

Host OS 
Compatibility 

Host OS 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 8 (A08U) or 12 (A12U) channel connection to 
3Gbps SATA-II disk drives, SATA-I backward 
compatible 

Drive Channels 

All drive channels are pre-configured, routed through a 
back-end PCB and cannot be changed 

Caching Mode 

Write-through or Write-back 

Cache Memory 

Pre-installed 256MB (or above) DDR RAM DIMM 
with/without ECC, in one DIMM socket 

Number of LUN’s 

Up to 32 per host ID 

Multiple Target 
IDs/Host Channel 

Yes 

Firmware on Flash 
Memory 

Yes 

Specification 

 

CPU 

IBM PowerPC 750CXr 

Gigabit Ethernet  

One 10/100BasedT for local or remote management 
access 

DIMM Slot 

One 184-pin DDR DIMM module 

ASIC 

Infortrend 64-bit chipset (ASIC266) 

Flash ROM 

32Mbit (4MB) 

NVRAM 

32KB with RTC 

Hardware XOR 

Yes 

Real-time Clock 

For event messages with time record tracking and 
scheduled maintenance tasks, e.g., Media Scan.