RAID

• Multiple arrays with Dedicated, Global, or Enclosure-specific hot spares
• RAID levels supported: RAID 0, 1 (0+1), 3, 5, 6, 10, 30, 50, 60, 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

System Components

• One (1) XDAS enhanced 4U enclosure
• One (1) RAID controller module
• One (1) 512MB DDR RAM DIMM module (pre-installed on the controller module)
• Three (3) hot-swappable, redundant, 405W power supply units
• Two (2) hot-swappable, redundant, dual-fan cooling modules running in high/low speeds
• Twenty-four (24) hot-swappable drive trays
• Two (2) front handles
• One (1) independent battery backup unit (BBU)
• One (1) host connection module

Host Interface

• Two(2)4G-FC host channels with embedded bypass to four (4) Fibre ports
• DIP switch settings to change host port attributes
• Auto-negotiate FC-AL, point-to-point, or switched fabric
• Tagged command queuing up to 256
• Variable stripe size per logical drive
• Optimization setting for random or sequential I/Os

Drive Interface

• Twenty-four (24) hot-swappable 3Gbps SATA-II drive trays that accommodate 1-inch pitch, 3.5-inch SATA-II or SATA-I disk drives
• Automatic bad-sector reassignment
• Dedicated bandwidth to each connected drive

Management

• Firmware-embedded utility via LCD keypad or RS-232C port
• VT-100 terminal emulation via RS-232C
• Telnet access via onboard Ethernet port
• 10/100 BaseT Ethernet for out-of-band management
• Two (2) COM ports for local access to firmware-embedded utility and UPS connectivity
• Java-based SANWatch software with Snapshot protection:
  • Graphical user interface
  • Local/remote management; in-band or out-of-band via TCP/IP
  • Centralized management to monitor and administer multiple RAID units on one screen
  • Secure link over SSL
• Configuration Client for easy access to the configuration utility screen
• SNMP 2.0 MIBs with get and set commands

SAN Management

Indicators

• Onboard alarm is triggered when one of the following fails:
  • RAID controller module
  • Cooling module
  • Power supply unit
  • Hard drive
  • BBU module
  • Host connection module
• Module status LED indicators:
  • Two (2) per drive tray
  • Three (3) per LCD panel
  • Seven (7) per RAID controller module
  • Two (2) per Ethernet port
  • Two (2) per cooling module
  • One (1) per power supply unit
  • One (1) per BBU module
  • Two (2) per FC port
• Module failure alert through I²C bus
• Event notifications sent over email, fax, LAN broadcast, SNMP traps, MSN messenger, SMS short messages
• System alerts through Java-based RAIDWatch manager

Interfaces

• Four (4) FC ports that receive SFP fiber optic transceivers
• Two (2) COM ports on each controller module for RS-232C serial port (38400, n, 8, 1) and UPS support
• One (1) 10/100BaseT Ethernet port on each controller module

Power Supply Module

Cooling Module

Dimensions

• Chassis without handles: 445(W) x 174.4(H) x 498(D) mm (17.5 x 6.86 x 19.6 inches)
• Chassis with handles: 482(W) x 174.4 (H) x 514(D) mm (19 x 6.86 x 20.2 inches)