ES A04U-G2421

The A04U easily blends into data centers where 1U rack space is available and the demands for add-on storage arise. With 4 disk drives in a compact 1U enclosure, a logical drive consisting of terabytes of disk space can deliver a dedicated performance. The A04U is ideal for building an add-on storage for data backup in the digital media, broadcast, and security/ surveillance environments.

Datasheet

Highlights
Specifications
Accessories

SCSI-320 host channel; transfer rate up to 320MBps per channel
Single RAID controller providing complete RAID functionality
Compact 1U space-saving design
Supports up to four (4) SATA-II (3Gbps) , 3Gbps disk drives; backward compatible with SATA-I disk drives
SATA NCQ (Native Command Queuing) support
Real-time event notification by a variety of methods

Host-to-Drive	Model	Configuration	Form Factor
SCSI to SATA	A04U-G2421	Single controller	1U

RAID

Multiple arrays configurable with dedicated or global hot spares
RAID levels supported: RAID 0, 1 (0+1), 3, 5, 10, and NRAID
Online expansion by:
1. Adding new drives
2. Copying and replacing drives with drives of larger capacity
Automatic background rebuilds Configurable stripe size and write policy per array

Host Interface

One (1) SCSI-320 through two (2) 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/O

Drive Interface

Four (4) 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

System Components

Single controller configuration provides full RAID functionalities

One (1) EonStor® compact 1U enclosure
One (1) RAID controller module
One (1) 256MB DDR RAM DIMM module (pre-installed on the controller module)
One (1) 200W power supply unit
Two (2) single-speed cooling fans
Four (4) hot-swappable drive trays

Management

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, 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

Indicators

Onboard alarm is triggered when one of the following modules fails:

RAID controller module
Cooling fans
Hard drive

Module status LED indicators:

Two (2) per drive tray
Three (3) per LED panel
Four (4) per RAID controller module
Two (2) per Ethernet port
Module failure alert through I²C bus

Physical/Electrical

Interfaces

Two (2) ports in one (1) dual-stacked VHDCI SCSI connector
One (1) COM port (38400, n, 8, 1)
One (1) 10/100BaseT Ethernet port

Cooling Fans

Two (2) single-speed cooling fans

Environmental Specifications

Temperature	Operating temperature: 0° to 40°C Non-operating temperature: - 40º to 60ºC
Relative Humidity	Relative humidity: 5 ~ 95%, non-condensing
Altitude	Operating: 0 ~ 12,000 ft Non-operating: 0 to 40,000 ft

Dimension

Without handles: 445 (W) x 43.5 (H) x 511 (D) mm (17.5 x 1.7 x 20.1 inches)
With handles: 478 (W) x 43.5 (H) x 511 (D mm (18.8 x 1.7 x 20.1 inches)
Package: 582 (W) x 180 (H) x 718 (D) mm (22.9 x 7 x 28.3 inches)

Weight

Net weight: 8 Kg (approx.)
Gross weight: 10 kg

Spare Parts

	IFT- 9373CDTray	3.5" Hard disk drive tray
	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