NStor Technologies CR8e, Disk Array Enclosure manual Cabling Configuration, General, Cables

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Installation

Cabling Configuration

The Ultra Wide SCSI mode provides enhanced performances with data transfers up to 40 MBs per second (20 MHz), while the Fast Wide SCSI mode will provide transfers up to 20 MBs per second (10 MHz).

The cabling configuration section is divided into two subsections, Ultra Wide SCSI and Fast Wide SCSI. These two sections provide the recommended cable configurations when operating the CR8e in a specific mode.

The CR8e supports the American National Standard Ultra SCSI (Fast-20) parallel interface standards, referred to as Ultra Wide SCSI. This standard is backward compatible with Fast SCSI (SCSI-2 with the Wide option), also referred to as Fast Wide SCSI. This standard defines the mechanical, electrical, and timing requirements. In compliance with these interface standards, certain limitations apply when considering the configuration, lengths of cabling, and termination. The configuration samples and cables provided with the subsystem meet the requirements of the specifications. Modifications to any of these variables can have less than desirable results when operating any SCSI device.

General

Cables

Cable length is a critical consideration when configuring the subsystems. There are different limitations for Ultra Wide SCSI and Fast Wide SCSI.

When calculating the total length of your cabling, the internal subsystem length of cables and printed circuit board traces (known as the internal cable length) must be subtracted from your total cable length. The CR8e internal cable length is 36 inches.

For Ultra Wide SCSI, the total SCSI cable length is 3 meters (118 inches) with four drives and 1.5 meters (59 inches) with eight drives. After subtracting the internal length of 36 inches the remaining cable length is 82 inches or approximately 6.83 feet (2.08 meters) for four drives and 23 inches or approximately 1.9 feet (.58 meters) for eight drives.

For Fast Wide SCSI, the total SCSI cable length is 6 meters (236 inches) with four drives and 3 meters (118 inches) with eight drives. After subtracting the internal length of 36 inches the remaining cable length is 200 inches or approximately 16.66 feet (5.08 meters) for four drives or approximately 6.83 feet (2.08 meters) for eight drives.

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Cabling Configuration

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Contents Page NStor Corporation, Inc Compliance Information Statement Regulatory InformationFCC Radio Frequency Interference Statement Power Cord Selection Contents Installation Using the CR8eTroubleshooting MaintenanceGlossary Technical Information IndexContents Preface WelcomeFeatures Drive SupportWhere to Find Answers Registering Your ProductViii Getting Started CR8e Subsystem at a Glance FusePower Supply #1 Hot Swap Cooling Fans ComponentsHot Swap Disk Drives Door Lock Hot Swap Power SuppliesPower Switch Power Cord Connector and Fuse Interface CardConfiguration Modules Controlling and Monitoring Operator Control PanelLEDs Power-On LEDStatus Indicator LEDs Status LEDs Activity LEDsSAF-TE Card Alarm SpeakerFault LEDs SAF-TE Card Installation SetupSystem Requirements GuidelinesRack-Mount Subsystem Assembly Rack-Mount Subsystem Assembly Component Installation Drive Label Upper left bay, four drive slots Installing the Third Power Supply Cables Cabling ConfigurationGeneral Termination Ultra Wide Scsi Mode Dual-Bus EnclosureTOP Single-Bus Enclosure Installation Fast Wide Scsi Mode Single Dual-Bus EnclosureUltra Scsi Two Dual-Bus Enclosures Installation Bus Module installed Installation Two Single-Bus Enclosures Installation Dual-Bus Enclosure with Two Single-Bus Enclosures TOPInstallation Other Configurations Power-On Self Test Using the CR8eNotifications and Error Conditions RAM Checksum Failure Firmware Error ConditionsScsi Bus Access Failure LED Descriptions SAF-TE LED MatrixOperator Control Panel Startup ScreensPower Supply Error Conditions Subsystem Status IconMain Menu Hardware MenuComponent Status Configuration InfoPost Results Internal Temp Options Menu Scsi ID MenuSET Upper Slot IDS SET Safte ID Lower Reset Default IDS Reset Default IDs Selection Heat Threshold Safte Chain ID Change Passcode Unlock Options Troubleshooting Common Enclosure ProblemsCommon Scsi Bus Problems Scsi Bus Symptom Probable Cause Solution Common Problems and Interpreting the LED Indications LED Status Reason SolutionMaintenance Replacing a Disk DriveReplacing a Power Supply Replacing a Power Supply Replacing the Cooling Fans Replacing an I/O Interface Card Replacing a Fuse Replacing the CR8e Cabinet Maintenance Glossary Glossary RAID SAF-TE Specifications Technical InformationConnectors CR8eSignal Name Pin Conductor Jumpers JP2 SCSI-to-SCSI Configuration JP3 SCSI-to-SCSI IDsJP4 Scsi ID Settings JP5 SCA Remote/Delay start Pins 1 Pins 3 Drive Spinup ModeJ15 FAN and J17 OEM FAN Index RAID SAF-TE Index

CR8e, Disk Array Enclosure specifications

NStor Technologies has long been recognized for its innovative storage solutions, and the CR8e Disk Array Enclosure is a prime example of this legacy. Designed to meet the growing demands of data storage in enterprise environments, the CR8e offers a robust and efficient platform for managing and securing critical data.

One of the standout features of the CR8e is its impressive capacity. Supporting up to eight 3.5-inch or 2.5-inch drive bays, it allows for flexibility in choosing the right drives, including SATA, SAS, and SSD options. This adaptability not only meets varying performance requirements but also ensures that organizations can tailor their storage solutions based on specific operational needs.

The CR8e is designed with redundancy in mind, featuring hot-swappable drive bays that enable users to replace drives without downtime, thus ensuring continuous operation. Additionally, its dual-redundant power supplies and cooling fans provide enhanced reliability. This feature is crucial for businesses that cannot afford interruptions, ensuring that their data remains secure and accessible at all times.

In terms of connectivity, the NStor CR8e supports multiple interface options, including both SAS and SATA, catering to different storage protocols and enhancing compatibility with existing systems. It is equipped with advanced RAID functionalities, supporting various RAID levels such as 0, 1, 5, and 6. This capability allows users to choose the most suitable data protection and performance strategy for their environment.

Management is made simple thanks to its user-friendly interface, which offers ease of configuration and monitoring. The enclosure also provides comprehensive diagnostic and reporting features, assisting administrators in maintaining optimal storage conditions and prolonging the lifespan of the equipment.

Furthermore, the CR8e is designed with scalability in mind. As data storage needs grow, organizations can easily expand their storage capacity by adding more enclosures. This feature allows businesses to future-proof their investments in storage technology.

NStor Technologies has incorporated cutting-edge technologies in the CR8e to ensure high-speed data transfer rates, reducing latency and enhancing overall system performance. The enclosure’s design emphasizes thermal efficiency, ensuring that the internal components are kept at optimal temperatures even during high-performance operations.

In summary, the NStor Technologies CR8e Disk Array Enclosure is a versatile and powerful solution for organizations seeking to enhance their data storage capabilities. With its robust features, excellent scalability, and emphasis on reliability, it stands out as an ideal choice for enterprises focused on safeguarding their data assets.