Accusys ExaRAID A24U-SS - Manual (Page 49)

Specifications
42
Controller Specifications
Functional Specifications
CPU Intel IOP341 1200MHz IO processor
Memory Up to 4GB DDR2-667 cache memory, with
EEC and BBM protection
Firmware ROM ECC Dual Flash support (each 16 MB)
Boot ROM 512K bytes
Host Interface Two 4Gb/s Fiber channel ports (A16R-FS)
Two 3Gb/s Serial Attached SCSI (SAS) wide
(x4) ports (A16R-SS)
Disk Interface 3Gb/s SAS/SATA (with AA-MUX)
SAS Expansion Port Yes (Up to 120 disks including local chassis)
Ethernet On-board 10/100 Ethernet port
Terminal RS-232 connect by phone jact cable
Configuration Specification
• Multiple RAID Levels: 0, 1, 3, 5, 6, 10, 30, 50, 60
• Support stripe sizes (KB): 4, 8, 16, 32, 64, 128, 256, 512
• Online disk group expansion
• Concurrent disk group expansion and level/stripe size
migration
• Online volume management, support striping and
concatenating
• Online LUN capacity expansion and shrink
• Online manual or event-triggered disk cloning
• Online manual or periodic disk scrubbing with parity check
and rebuild
• Disk health monitoring and self tests by S.M.A.R.T technology
• Online drive traveling and array roaming
• Online array recovery, protection against multiple disk
failures
• Online bad block data recovery and reallocation with over-
threshold alert
• NVRAM-based transaction log and auto parity
resynchronization
• Redundant on-disk RAID meta data
• Hot spare with local and global spare, support spare restore
• Flexible storage presentation for SAN, MPIO, and DAS