User manual

2
ERQ12-U4R2 & ERQ12-F2R2 Serial ATA Disk Array Systems
1 Overview – Features
Features
The main features of the disk array system are listed as follows. Refer to the specifications table
on page 31 for more detailed information.
• Operating system independent
• NRAID, JBOD, RAID 0, 1, 3, 5, 0+1, 30, or 50 array groups
• On-line expansion
• Allows division of array groups into slices, each mapped to a LUN
• Hot spare disk and automatic on-line rebuild
• Two hot swap power supplies – if one fails, the others take over without interruption
• Twelve SATA channels
• Fast 64-bit RISC CPU based RAID controller with up to 1 GB of DDR cache memory.
• Dual Ultra SCSI (ERQ12-U4R2) or fibre channel (ERQ12-F2R2) host interfaces
• Audible alarm, disk tray LED, and LCD panel failure indicators
• Configuration via the front panel or RS-232 interfaces