Janus 4551 12 bay SATA II to 4Gb Fibre RAID

Description

The Janus 4551 is a single controller, dual 4Gb Fibre to SATA-II RAID storage subsystem. Its compact 2U - 12 bay chassis features hot-swappable power supplies and fans. The RAID controller, fans, and power supplies are modularized allowing for easy removal from the rear of the unit. Also features a CGI-based GUI allowing easy remote configuration and monitoring using a web browser.On-line expansion allows the user to add drives to an existing array without interrupting operation. Available with a battery backup. Dual flash ROM for increased availability and reliability. Five year warranty available . VMware certified.

The Janus 4551 contains the following functions:

• Innovative Array Structure:  The Janus 4551E hierarchically organizes storage objects. With this structure, physical drives are combined into Disk Groups (DG). Disk Groups are subdivided into Logical Disks (LD) where arrays are created. Lastly, Logical Disk can be combined or stripped together to form Volumes. Either volumes or LD can be pointed to a LUN which are then presented to the host computer.
• Online Expansion/Defragmentation: New physical disks can be added by expansion of a Disk Group (DG) while the unit remains online. During the process of expanding Disk Groups, defragmentation can be selected to move unused capacity to the ending LBA of a Disk Group. Defragmentation can also be selected at anytime there is unused storage space residing between Logical Disks.
• Online Expansion/Shrinking: Logical Disk (LD) Online Expansion can increase the capacity of an online LUN, instead of having to create a separate partition for unused capacity or capacity gained from Disk Group Expansion; now your storage can dynamically grow as your demands grow. In the event of overestimating requirements for Logical Disk capacity, shrinking can be used reduce the allocated storage of a Logical Disk.
• Array Recovery Utility: The JanusRAID2 series now provides an Array Recovery Utility (ARU) that can aid a user in the event of multiple drive failures corrupting the RAID array of a Logical Disk and/or volumes. The ARU enables users to recover lost disk members of a Disk Group, and will automatically recover Logical Disks and Volumes.
• Global or Local Spare: With the new JanusRAID2 storage structure, local and global spares can be configured. Local spares will belong to specific Disk Groups and will only replace faulty drives in a specific Disk Group. Meanwhile, Global Spares will replace faulty disk in any available Disk Group.
• Disk Self Test automatically tests RAID hard drive health. DST performs write, servo analysis, & read scan tests; the test results are displayed on the LCD & Hyperterminal outputs.
• Disk Scrubbing uses idle time to test disks. If a sector is corrupted, DS regenerates data from other RAID member disks & writes it to an uncorrupted sector. DS prevents having multiple corrupted sectors in a single stripe, one of the main causes of data loss.
• Disk Cloning used with the SATA SMART function, determines the optimum time for the system to begin cloning a failing drive to a system hot spare disk. The cloned disk automatically takes over array function, eliminating degraded performance during rebuilds.
• Web Based GUI: Embedded graphic user interface) management interface can be accessed through a web browser. The GUI is java-based, and can configure arrays, slice sizes, lun mapping, etc. and also allows remote monitoring of drive health, fan, and power supplies.
• Greater than 2TB slices: Two firmware options are available to surpass the 2 terabyte limitation; 16byte CDB and variable sector size. With either of these functions enabled, users are able to create slices and map LUNs greater than 2TB to their respective host channels.
• Background Initialization: With most RAIDs, initialization process occurs with the unit offline, and inaccessible. With background initialization, the RAID array can be accessed during the initialization process so that the unit can be setup without having to wait several hours to complete initialization.
• Battery Backup (BBU): An optional BBU can be installed to ensure data integrity in the event of a power outage. The BBU provides power to the on-board cache of the RAID controller in the event of a power outage. This will allow any data that is still stored on the cache to be saved until power is restored. Once power is restored, the RAID controller will flush the cache to drives.

Common applications for the Janus 4551 include:

• Enterprise Storage
  Disk to Disk Backup
  Performance Driven HD
  Video Streaming Applications
  Security and Surveillance
  Regulation Compliance Storage
  Disaster Recovery Storage
  Audio and Video Editing
  VOD on Education or Entertainment
  Fixed Content Archiving

Features

• Host Interface: 4Gb Fibre
• Data Transfer Rate: Up to 400 MBps
• ID Assignment: 0-127
• Number of Host Channels: 2
• External Connector Type: SFP x 2 (SFP not included)
• Controller CPU: AMCC PPC440SP CPU
• Cache Memory: 512MB - 4GB DDR II SDRAM
• Disk Interface: SATA-II (3 Gb/sec)
• Number of Disk Channels: 12
• Hot Swap Disk Tray: 3.5" hot-swappable tray
• Hot Swap Fan: 2 x Turbo Fan
• Hot Swap Power supplies: 350 W x 2 Redundant
• AC Input Voltage: 100 to 240V (+/- 10%), 47 to 63 Hz
• RAID Levels: JBOD, 0, 1, 3, 5, 6, 10, 30, 50, 60, NRAID
• Disk Groups: Max. 8
• Logical Disk: 512
• Data Rebuild: Automatic Data Regeneration
• RAID Features: Global and local hotspare, and Background Initialization
• Advanced Data Reliability Assurance: SMARTCor. Functions (DST, DS, DC)
• Online Expansion: Yes
• Front Panel LCD and Buttons: Easy access for configuration and status report.
• RS-232 Terminal: User Friendly interface for configuration and status report
• Web browser GUI: Embedded CGI-based GUI management interface
• Event Notification: Built-in buzzer, e-mail, and SNMP
• Management AP: PathGuard, RAIDGuard Central, Windows MPIO, Windows VDS 1.1
• Humidity: 20% to 80% non-condensing
• Operating Temp: 5 °C to 40 °C
• Non-Operating Temp: -25 °C to 60 °C
• Safety Regulatory: UL, CUL, CB
• EMC Standard: FCC, CE, C-Tick, BSMI
• Physical Dimensions: 485 (W) x 565 (D) x 88 (H) mm
• Physical Weight: 19 Kgs (without drives)
• Packed Dimensions: 610 (W) x 790 (D) x 430 (H) mm
• Packed Weight: 28 Kgs (without drives)

Additional Information

• PDF Data Sheet- Janus 4551E
• Firmware and Manual Downloads
• Support and Contact Information
• RAID Parts & Accessories
• Janus4551E Maintenance Kit

Related Products:

• Janus6651E - 16 bay SATA II 4Gb Fibre version
• Janus6640 - 16 bay SCSI Attached version
  

Unit Pricing and Configuration Options