ESU12UG4020M2-0030 INFORTREND SCSI TO SCSI 12 BAY U320 SCSI-to-SCSI 2U/12-bay RAID array, Single controller with 256MB, ASIC 266, 4xSCSI ports 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 Experienced RAID firmware with IOSmart Technology DrvSmart Technology SysSmart Technology Host Interface Two (2) SCSI-320 through dual-stacked VHDCI 68-pin SCSI port; 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) SCSI drive trays that accommodate 1-inch pitch, 3.5-inch SCSI-320 disk drives; SCSI-160 backward compatible Automatic bad-sector reassignment Drives hot-swappable Dual channels across 12 drives within each subsystem System Components Redundant, hot-swappable components designed for no single point of failure One (1) EonStor 2U enclosure One (1) RAID controller module One (1) 256MB or above DDR RAM DIMM module (pre-installed on the controller module) Two (2), hot-swappable, redundant, 350W power supply units (PSUs) Three (3) hot-swappable, dual-speed, redundant, single-fan cooling modules Twelve (12) hot-swappable drive trays Two (2) front handles; one (1) with LCD panel Optional battery backup unit (BBU) Management Front LCD control panel for setup and configuration 10/100 BaseT Ethernet for out-of-band management Auto on-lining of cascaded enclosures RS-232C for local access to firmware-embedded utility c 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 Indicators Onboard alarm is triggered when one of the following modules fails: RAID controller module surpass the self-monitoring thresholds Cooling module PSU BBU (if installed) Hard drive Module-status LED indicators: Two (2) per drive tray One (1) per cooling module One (1) per PSU Three (3) per LCD panel Four (4) per RAID controller module Two (2) per Ethernet port One (1) per BBU (if installed) Module failure alert through I2C bus IOSmart IOSmart allows for the flexible configuration of logical drives, logical volumes and logical partitions and ensures instant RAID availability via background logical drive initialization. The firmware's embedded intelligent algorithms, such as Adaptive Write Policy and Guaranteed Latency I/O, improve the performance of sequential write applications and ensure the fast and continuous flow of data. DrvSmart The DrvSmart utility provides an easy way to store data while keeping it safe. One of the main DrvSmart functions, Media Scan, retrieves data from degraded or damaged hard drives and handles low quality drives in both the degraded mode and during the rebuild process. Other DrvSmart features include disk cloning, drive roaming, SMART, transparent resetting of non-responsive hard drives, and RAID parity update tracking and recovery. SysSmart In addition to RAID protection for the disk drives, Infortrend has developed a special firmware feature that automatically changes the data cache policy to write-through mode when abnormal conditions are detected such as a PSU/cooling module failure, low BBU or UPS battery charge, etc. By using the firmware to control the rotation speed of the enclosure's dual-speed fans, the fan rotation speed is raised to a higher level when critical conditions are detected, e.g., a PSU or fan failure. Fan speed returns to the lower setting when normal operating status is restored. Control over caching behaviors, as well as voltage and temperature self-diagnostics, is also related to enclosure conditions. Interfaces Dual VHDCI, 0.8mm LVDS SCSI host channels Two (2) audio jack RS-232C serial port (38400, n, 8, 1) One (1) 10/100M Ethernet port Power Supply Module Two (2) redundant hot-swappable power supplies with PFC |