ESA04UG2421M2-0032 INFORTREND 1U 4BAY SCSI-SATA II 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 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 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 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 |