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  A08U/A12U-G2421                                              |    Specifications    |    Accessories    |    Datasheet  
           
   
  • SCSI-320 to SATA-II (3Gbps) single controller RAID subsystem
  • Hardware XOR engine by dedicated ASIC266 chipsets
  • Dual-speed fans to reduce noise
  • Enhanced modular enclosure design
  • DDR Memory up to 2GB
   
           
 
Model
Configuration
Form Factor
A12U-G2421
Single controller
2U Rackmount
A08U-G2421
Single controller
2U Rackmount
 
  Specifications        
  RAID        
 
  • Multiple arrays configurable with dedicated or global hot spares
  • RAID levels supported: RAID 0, 1 (0+1), 3, 5, 10, 30, 50, and NRAID
  • Online expansion by:
    • Adding new drives
    • Copying and replacing drives with drives of larger capacity
  • Automatic background rebuilds
  • Configurable stripe size and write policy per array
  • Intelligent drive handling:
    • In degraded mode: skips irreparable blocks to continue rebuild
    • In normal operation: data-block verification and repair
 
  System Components        
 
  • Single controller configuration provides full RAID functionalities
  • One (1) EonStor® enhanced 2U enclosure
  • One (1) RAID controller module
  • One (1) 256MB DDR RAM DIMM module (pre-installed on the controller module)
  • Two (2), hot-swappable, redundant, 350W power supply units
  • Three (A12U) or Two (A08U), hot-swappable, redundant, single-fan cooling modules running in high/low speeds
  • Twelve (12) or eight (8), hot-swappable drive trays
  • Two (2) front handles
  • Optional battery backup unit
 
  Host Interface        
 
  • Two (2) SCSI-320 through four (4) VHDCI 68-pin SCSI ports; SCSI-160 backward compatible
  • Concurrent I/O commands
  • Tagged command queuing up to 256
  • Variable stripe size per logical drive
  • Optimization setting for random or sequential I/Os
 
  Drive Interface        
 
  • Twelve (12) or eight (8) 3Gbps SATA-II (3Gbps) , hot-swappable drive trays that accommodate 1-inch pitch, 3.5-inch SATA-I or SATA-II (3Gbps) disk drives
  • Automatic bad-sector reassignment
  • Dedicated bandwidth to each connected drive
 
  Management        
 
  • Front LCD control panel for setup and configuration
  • 10/100 BaseT Ethernet for out-of-band management
  • One (1) RS-232C serial port for local access to firmware-embedded utility
  • Firmware-embedded Java-based RAIDWatch® GUI manager:
    • VT-100 terminal emulation via RS-232C
    • Telnet access via onboard Ethernet port
    • Cross-platform, remote administration with SSL
    • Out-of-band access via Ethernet
  • Centralized management to monitor and administer multiple RAID units on one screen
  • Configuration client for real-time event notification over Email, Fax, LAN broadcast, SNMP Traps, MSN messenger, ICQ, SMS short messages, and the configuration utility screen
  • SNMP agent support:
    • SNMP trap event notification with plain-text event message (no MIB file required)
    • SNMP V2.0 MIB file support with get-and-set commands
  • IndicatorsOnboard alarm is triggered when one of the following modules fails:
    • RAID controller module
    • Cooling module
    • Power supply unit
    • Hard drive
    • BBU module
  • Module status LED indicators:
    • Two (2) per drive tray
    • Two (2) per cooling module
    • One (1) per power supply unit
    • One (1) per BBU module
    • Three (3) per LCD panel
    • Five (5) per RAID controller module
    • Two (2) per Ethernet port

Module failure alert through I²C bus

 
 

Intelligent Drive Handling

 
 

If two bad blocks occur on two member drives of an array, the integrity of the stored data is endangered. Media Scan, Infortrend's innovative intelligent drive handling function, retrieves data from the damaged sectors. Media Scan handles low quality drives in both the degraded mode and during the rebuild process. For additional data security, other intelligent drive management features include the transparent resetting of hung hard drives, power-failure management, and bad-drive handling during LD expansion.

 
  Task Scheduler  
 

The Task Scheduler is combined with Media Scan so that the scanning operation can be scheduled beginning at a specified start time and repeating at the configurable intervals. The operation is thus hands free. Each such schedule can be defined to operate on individual hard drives, all drives of a certain class, all member drives of a specified logical drive, or all member drives of all logical drives.

 
  Physical/Electrical  
  Interfaces  
 
  • Four (4) ports in two (2) dual-stacked VHDCI SCSI connectors
  • One (1) COM port (38400, n, 8, 1)
  • One (1) 10/100BaseT Ethernet port
 
  Power Supply Module  
  Power Supply Module Two (2) redundant hot-swappable power supplies with PFC  
 
Input
  100VAC at 6A, 240VAC at 3A with PFC (auto-switching)
   47 to 63Hz
Output
  (Maximum output: 350 Watts)
  +12.0V
  25A max.
  + 5.0V
  25A max.
  + 3.3V   20A max.
 
  Cooling Module  
  Three (A12U) or two (A08U) redundant single-fan cooling modules  
 
Maximum Air Flow
  High speed: 31.8 CFM
Low speed: 20.1 CFM
 
  Environmental Specifications  
 
Temperature

Operating: 0º to 40ºC (32º F to 104º F)
Non-operating: - 40º to 60ºC (-40º F to 149º F)

Relative Humidity
5 ~ 95%, non-condensing
Altitude
Operating: sea level to 12,000 ft
Non-operating: sea level to 40,000 ft
 
  Dimensions  
 
  • Chassis without handles: 446(W) x 88(H) x 490(D) mm
  • Chassis with handles: 482 (W) x 88(H) x 505(D) mm
  • Package: 381H x567W x 772D mm
 
  System weight  
 
  • Net weight: 23.5kg
  • Gross weight: 25kg
 
   
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