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The JanusRAID SA-4327S is Arena Maxtronic's premier eSATA RAID storage solution. It features eight SATA-II disk interfaces coupled with a single 3.0 Gbps eSATA host interface. Management and configuration is easy using our bundled java-based StorConn software.
The JanusRAID SA-4327S is a single controller, 3.0Gbps eSATA to SATA-II RAID system. In a compact 2U - 8 bay chassis, featuring hot-swappable power supplies and fans. The fans, and power supplies are modularized allowing for easy removal from the rear of the unit. Also featuing a bundled standalone GUI that allows quick and easy configuration or monitoring. Most modern computers natively support SATA, and can be converted to support eSATA using an inexpensive dongle. This enables the JanusRAID SA-4327S to be easily integrated into your current computer systems without the need of an expensive HBA. The SA-4327S is driverless and a direct plug and play storage solution. The host interface throughput is rated to up to 300 megabytes per second.   
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Host Interface: 3.0Gbps eSATA Data Transfer Rate: Up to 3.0 Gb/second per channel Number of Host Channels: 1 External Connector Type: eSATA Controller CPU: Intel i80219 Cache Memory: 512MB - Upgradable to 1GB DDR 333 SDRAM (PC2700 184-pin DIMM) Disk Interface: SATA-II (3 Gb/sec) Number of Disk Channels: 8 Hot Swap Disk Tray: 8 x 3.5" hot-swappable trays Hot Swap Fan: 2x 3600RPM Turbo Fan Hot Swap Power supplies: 300watt x 2 Redundant AC Input Voltage: 100 to 240V (+/- 10%), 46 to 63 Hz
RAID Levels: 0, 0+1, 3, 5, NRAID RAID Arrays: 8 Data Rebuild: Automatic Data Regeneration RAID Features: Global Hotspare, Variable Stripe Size, Online Expansion, Array Roaming 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: Out / In band management GUI for configuration and status monitoring Event Notification: Built-in buzzer, e-mail, and SNMP Humidity: 10% to 85% non-condensing Operating Temp: 5 C to 40 C (41 F to 104 F ) Non-Operating Temp: -25 C to 60 C (-13 F to 140 F) Safety Regulatory: UL, CUL, CB EMC Standard: FCC, CE, C-Tick, BSMI Physical Dimensions: 485 (W) x 470 (D) x 88 (H) mm
19.09 (W) x 18.50 (D) x 3.46 (H) inches
Physical Weight: 16 Kgs (without drives)
35.56 lbs (wthout drives)
Packed Dimensions: 610 (W) x 800 (D) x 280 (H) mm
24.02 (W) x 31.50 (D) 11.02 (H) inches
Packed Weight: 23 Kgs (without drives)
51.11 lbs (without drives)
Click a feature for more info!
- StorConn Java-based GUI
StorConn is an installable standalone GUI (graphic user interface) management software bundled with the RAID unit.
- Disk Self Test (DST)
Before the release of this function, users of RAID systems were forced to test suspected bad hard drives in a host computer individually using a drive manufacturer’s utility. This function tests the health of hard drives with them installed in the RAID unit. DST performs write tests, servo analysis, and read scan tests; the test results are then displayed on the LCD and hyper terminal output. This can aid the user in deciding whether or not to replace a suspected failing hard drive. We highly recommend running this test before initializing a RAID set to ensure a healthy RAID solution.
- Disk Scrubbing (DS)
With today’s RAID subsystems being capable of storing multiple terabytes, it is becoming increasingly difficult to manage and maintain that large amount of data. To aid a user in maintaining their data’s health, Arena-MaxTronic has released their newest firmware function Disk Scrubbing. The data and/or parity stored on hard drives can sometimes become corrupted; this data can also reside in areas that are not accessed for long periods of time. DS will use idle time to test the disks, and if a sector is found to be corrupted, the data will be regenerated from other RAID member disks and will be written to an uncorrupted sector. The purpose of DS is to prevent the possibility of having multiple corrupted sectors in a single stripe, which is one of the main causes of data loss.
- Disk Clone (DC)
Hard drives are the most likely component to fail in a RAID array, and almost impossible to predict when the failure will occur. When a failure does occur the RAID unit will have to regenerate data from the non-failed hard drives to rebuild a new drive, and the RAID array will be in degraded mode. Having a unit in degraded mode is a very cautious time because if a second hard drive was to fail the RAID is destroyed and data is lost. This is where Disk Cloning can aide a user. With the help of the hard drives built in S.M.A.R.T. function, DC can determine when to begin cloning a bad drive to a hot spare. Upon completion of cloning, the new cloned disk can take the position of the failing disk or can stand-by until the original disk fails, then take the failed disks position. Disk cloning is to prevent a rebuild from ever occurring and having the unit in degraded mode.
- Support for greater than 2TB volume
An option to enable volumes over 2TB can be configured.
- Background Initialization
Initialization occurs during creation of a RAID array by zeroing out / formatting drives. By default the 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.
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