Specifications

RAID

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 rebuild
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. 2 x SCSI-320 through dual-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) 1.5Gbps SATA, hot-swappable drive trays that accommodate 1-inch pitch, 3.5-inch SATA disk drives
2. SATA-to-PATA dongle kit available to accommodate parallel ATA (PATA) drives
3. Automatic bad-sector reassignment
4. Dedicated bandwidth to each connected drive

System Components

Redundant, hot-swappable components, designed for no single point of failure

1. One (1) EonStor® 2U enclosure
2. One (1) RAID controller module
3. One (1) 128MB SDRAM DIMM module (pre-installed on the controller module)
4. Two (2), hot-swappable, redundant, 460W power supply units
5. Two (2), hot-swappable, redundant, dual-fan, cooling modules
6. Twelve (12), hot-swappable, drive trays
7. Two (2) front handles
8. Optional battery backup unit (BBU) supported

Management

1. Front LCD control panel for setup and configuration
2. 10/100 BaseT Ethernet for out-of-band management
3. RS-232C for local access to firmware-embedded utility
4. Firmware-embedded 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 (GUI-onboard)
   5. Centralized management to monitor and administer multiple RAID units on one 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:

1. RAID controller module
2. Cooling module
3. Power supply unit
4. Hard drive

Notification Processing Center (NPC) for real-time event notification over email, LAN broadcast, or SNMP traps

Module status LED indicators:

1. Two (2) per drive tray
2. One (1) per cooling module
3. One (1) per power supply unit
4. Three (3) per LCD panel
5. Six (6) per RAID controller module

Module failure alert through I²C bus

Auto switch cache policy and Auto shutdown

When a RAID controller detects conditions exceeding preset thresholds, the following actions will be exerted to protect the hardware:

1. Cached data is automatically flushed and the array’s caching mode switches from write-back to write-through mode.
2. If conditions persist past the preset period of time, auto shutdown of the controller will commence.

All thresholds associated with this mechanism are user configurable and, once a subsystem manager restores the normal operating conditions, the caching mode changes from write-through back to write-back mode.

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.

Physical/Electrical

Interfaces

1. Dual VHDCI, 0.8mm LVDS SCSI host channels
2. One (1) audio jack RS-232C serial ports (38400, n, 8, 1)
3. One 10/100M Ethernet port

Power supply

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

Cooling fan

Three (3) redundant cooling fan modules

Environmental Specifications

Dimensions

1. 2U enclosure: 88H x 446.2W x 486.5D mm
2. 2U enclosure with protrusions: 88H x 481.2W x 525D mm
3. Package: 344H x 600W x 670D mm

System weight (w/o drives)

1. Net weight: 16kg
2. Gross weight: 23.5kg