ES A08U-G2421

ES A08U-G2421

  • Highlights
  • Specifications
  • Accessories
  1. SCSI-320 to SATA-II (3Gbps) single controller RAID subsystem
  2. Hardware XOR engine by dedicated ASIC266 chipsets
  3. Dual-speed fans to reduce noise
  4. Enhanced modular enclosure design
  5. DDR Memory up to 1GB
Configuration Model Form Factor
Single A08U-G2421 2U rack-mount
  1. Multiple arrays configurable with dedicated or global hot spares
  2. RAID levels supported: RAID 0, 1 (0+1), 3, 5, 10, 30, 50, and NRAID
  3. Online expansion by:
    1. Adding new drives
    2. Copying and replacing drives with drives of larger capacity
  4. Automatic background rebuilds
  5. Configurable stripe size and write policy per array
  6. Intelligent drive handling:
    1. In degraded mode: skips irreparable blocks to continue rebuild
    2. In normal operation: data-block verification and repair
Host Interface
  1. Two (2) SCSI-320 through four (4) VHDCI 68-pin SCSI ports; SCSI-160 backward compatible
  2. Concurrent I/O commands
  3. Tagged command queuing up to 256
  4. Variable stripe size per logical drive
  5. Optimization setting for random or sequential I/Os
Drive Interface
  1. 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
  2. Automatic bad-sector reassignment
  3. Dedicated bandwidth to each connected drive
System Components

Single controller configuration provides full RAID functionalities

  1. One (1) EonStor® enhanced 2U enclosure
  2. One (1) RAID controller module
  3. One (1) 256MB DDR RAM DIMM module (pre-installed on the controller module)
  4. Two (2), hot-swappable, redundant, 350W power supply units
  5. Three (A12U) or Two (A08U), hot-swappable, redundant, single-fan cooling modules running in high/low speeds
  6. Twelve (12) or eight (8), hot-swappable drive trays
  7. Two (2) front handles
  8. Optional battery backup unit
  1. Front LCD control panel for setup and configuration
  2. 10/100 BaseT Ethernet for out-of-band management
  3. One (1) RS-232C serial port for local access to firmware-embedded utility
  4. Java-based RAIDWatch® GUI manager:
    1. VT-100 terminal emulation via RS-232C
    2. Telnet access via onboard Ethernet port
    3. Cross-platform, remote administration with SSL
    4. Out-of-band access via Ethernet
  5. Centralized management to monitor and administer multiple RAID units on one screen
  6. 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
  7. SNMP agent support:
    1. SNMP trap event notification with plain-text event message (no MIB file required)
    2. SNMP V2.0 MIB file support with get-and-set commands
  8. IndicatorsOnboard alarm is triggered when one of the following modules fails:
    1. RAID controller module
    2. Cooling module
    3. Power supply unit
    4. Hard drive
    5. BBU module
  9. Module status LED indicators:
    1. Two (2) per drive tray
    2. Two (2) per cooling module
    3. One (1) per power supply unit
    4. One (1) per BBU module
    5. Three (3) per LCD panel
    6. Five (5) per RAID controller module
    7. Two (2) per Ethernet port
  10. 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.

  1. Four (4) ports in two (2) dual-stacked VHDCI SCSI connectors
  2. One (1) COM port (38400, n, 8, 1)
  3. One (1) 10/100BaseT Ethernet port
Power Supply Module

Two (2) redundant hot-swappable power supplies with PFC

Input: 100VAC at 6A, 240VAC at 3A with PFC (auto-switching)
47 ~ 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 (each module) : High speed: 31.8 CFM
Low speed: 20.1 CFM
Environmental Specifications
Operating temperature: 0° to 40°C
Non-operating temperature: - 40º to 60ºC
Relative humidity: 5 ~ 95%, non-condensing
Operating altitude: Operating: 0 ~ 12,000 ft
Non-operating: 0 to 40,000 ft
  1. Chassis without handles: 446(W) x 88(H) x 490(D) mm
  2. Chassis with handles: 482 (W) x 88(H) x 505(D) mm
  3. Package: 381H x567W x 772D mm
System Weight
  1. Net weight: 23.5kg
  2. Gross weight: 25kg

Spare Parts

IFT-9373CDTray 3.5" Hard disk drive tray
IFT-9272CPSU Power supply module, EonStor 2U DDR-interface subsystems, 350W capacity
IFT-9272CFanModE Intelligent Cooling fan module for EonStor 2U DDR-interface subsystems
IFT-9272CHandLLCD Left-side forearm handle for 2U RAID subsystems, LCD panel included
IFT-9272CHandR Right-side forearm handle for 2U subsystems
IFT-82AU24GD08 SCSI to SATA RAID controller module, for ES A08U-G2421 subsystem, 4 x SCSI-320 VHDCI host connectors.
IFT-82AU24GD08M2 SCSI to SATA RAID controller module, for ES A08U-G2421 subsystem, 4 x SCSI-320 VHDCI host connectors, 256MB DDR RAM.
IFT-82AU24GD12 SCSI to SATA RAID controller module, for ES A12U-G2421 subsystem, 4 x SCSI-320 VHDCI host connectors.
IFT-82AU24GD12M2 SCSI to SATA RAID controller module, for ES A12U-G2421 subsystem, 4 x SCSI-320 VHDCI host connectors, 256MB DDR RAM.
IFT-DDRESCM2 256MB DDR RAM DIMM module, for ASIC266 platform
IFT-9270UJBODCab SCSI external round cable, VHDCI to VHDCI
IFT-9270ASCab RS-232C serial cable, audio-jack to DB9
IFT-9011 Null Modem, DB9 female to DB9 male, wires swapped


IFT-9273CBTC Battery cell pack, Li-Ion, Enhanced EonStor 12-bay subsystems
IFT-9270UHstCab SCSI external round cable, DB68 to VHDCI
IFT-9272CESlide28 Enhanced Slide rail assembly for 2U enclosures, 21"~28.5" rack depth
IFT-9272CESlide36 Enhanced Slide rail assembly for 2U enclosures, 25.5"~36" rack depth
IFT-DDRESCEM5 512MB DDR RAM DIMM module, for ASIC266 platform
IFT-DDRESCEMA 1GB DDR RAM DIMM module, for ASIC266 platform

The “Purchase Reference” feature enables customers to request a quote from Infortrend sales representatives. Please note that actual product orders and purchases are not processed via Infortrend's website. If you wish to order and purchase Infortrend products, please contact our sales representatives directly.

Please note the following:

  1. The list below is based on standard worldwide shipment, models may vary by region. Infortrend sales representatives can provide more information about shipment variations in your region.
  2. “Default Included” means that a component is standard included in system orders. Customers may order additional units to serve as spare components.

Filter by ticking your preference

Sorry, Couldn't find ordering Information of this model.

Subscribe eNewsletter NOW to get the latest Infortrend news and information.
Note: the Global-English version will be sent instead if your subscribed language is unavailable.