RAX840-IR - Disk array CRU - Free user manual and instructions
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| Product Type | Disk Array |
| Model | RAX840-IR |
| Number of Drive Bays | 8 |
| Supported Drive Form Factor | 3.5" or 2.5" SAS/SATA |
| Host Interface | 2 x Mini-SAS HD (SFF-8644) |
| RAID Levels | 0, 1, 5, 6, 10, JBOD |
| Form Factor | 2U Rackmount |
| Dimensions (W x D x H) | 19" x 18" x 3.5" (482.6 x 457.2 x 88.9 mm) |
| Weight (empty) | 20 lbs (9.1 kg) |
| Power Supply | Dual redundant, 500W each |
| Cooling | 3 redundant hot-swap fans |
| Management | Web-based GUI, LCD front panel |
| LED Indicators | Per drive status, power, activity, fault |
| Operating Temperature | 0°C to 40°C (32°F to 104°F) |
| Compliance | CE, FCC, RoHS |
| Warranty | 3 years limited |
| Maintenance | Hot-swappable drives, fans, power supplies |
| Cleaning | Use a dry, lint-free cloth; do not use liquids |
| Safety | Follow ESD precautions; use grounded outlet |
Frequently Asked Questions - RAX840-IR CRU
How do I install drives in the RAX840-IR?
Open the front bezel and slide the drive trays out. Insert 3.5" or 2.5" SAS/SATA drives into the trays, secure with screws, then reinsert until locked. Ensure hot-swap capability is supported.
What RAID levels are supported?
The RAX840-IR supportsRAID 0, 1, 5, 6, 10, and JBOD. Configuration is done via the web management interface.
How do I access the web management interface?
Connect the array to your network via the dedicated management port. Default IP is 192.168.0.100. Open a browser and log in with default credentials (admin/admin).
Can I mix SAS and SATA drives?
Yes, but it is not recommended for performance-critical RAID arrays. Mixing may affect overall speed and reliability. Use identical drives for best results.
How do I replace a failed drive?
Identify the failed drive by the red LED. Hot-swap by unlocking the tray, removing the drive, inserting a new one, and locking. The array will automatically rebuild if RAID is configured.
What is the maximum capacity supported?
With 8 bays and support for drives up to 18TB each (as of 2023), the maximum raw capacity is144TB (using 18TB drives). Higher capacities may be supported with future drives.
How do I reset the device to factory defaults?
Power off the unit, press and hold the reset button on the rear panel (using a paperclip) while powering on. Hold for 10 seconds until the LCD shows default settings restored.
Is the RAX840-IR compatible with all operating systems?
Yes, it appears as a standard disk array and works withWindows, macOS, Linux, and VMware. No special drivers are required for basic functionality.
What is the power consumption?
Typical power consumption is150-250W depending on drive count and activity. The dual redundant power supplies are rated at 500W each.
How do I update the firmware?
Download the latest firmware from CRU's support page. Upload the file via the web interface under 'Maintenance > Firmware Update'. Do not power off during update.
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