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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 rebuildsConfigurable stripe size and write policy per arrayIntelligent drive handling:
In degraded mode: skips irreparable blocks to continue rebuild
In normal operation: data-block verification and repair
Host Interface
Two (2) FC-4G through two (2) SFP host ports
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
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 (A12F) or Two (A08F), 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
Management
Front LCD control panel for setup and configuration10/100 BaseT Ethernet for out-of-band managementOne (1) RS-232C serial port for local access to firmware-embedded utility 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 module
Power supply unit
Hard drive
BBU module
Module status LED indicators:
Two (2) per drive tray
One (1) 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.

Interfaces
Two (2) SFP ports for host connections
One (1) COM port (38400, n, 8, 1)
One (1) 10/100BaseT Ethernet port