Power Supply Module Failures

NOTE: The line input LED lights up when the power cable is connected, even if the switches on the power supply modules are off.

NOTE: When installing, hot-swapping, or hot-adding a new power supply, allow several seconds for the system to recognize the power supply module and determine its status. The power-supply status indicator turns green to indicate that the power supply module is functioning properly.

You can identify a power supply module failure by any or all of the following:

•LEDs on the power supply modules.

•Messages on the console, in the event log, or in Modular Disk Storage Manager.

NOTE: When viewing the rear of the array, power supply module 0 is on the left, and power supply module 1 is on the right.

Troubleshooting a DC power supply

WARNING: For equipment using –(48–60) V DC power supplies, a qualified electrician must perform all connections to DC power and to safety grounds. Do not attempt connecting to DC power or installing grounds yourself. All electrical wiring must comply with applicable local or national codes and practices. Damage due to servicing that is not authorized by Dell is not covered by your warranty. Read and follow all safety instructions that came with the product.

CAUTION: The system requires one power supply for normal operation. On power-redundant systems, remove and replace one power supply module at a time when a system is turned on.

CAUTION: A single power supply module can be removed from a switched-on array for a maximum of five minutes. Beyond that time, the array may automatically shut down to prevent damage.

NOTE: In case a power supply module fails, make sure to leave the failed power supply module in the enclosure till the replacement power supply module is available.

NOTE: You must unlatch and lift the optional cable management arm if it interferes with power supply removal. For information about the cable management arm, see the system’s rack documentation.

1.Verify that the power switch is in the ON position.

2.Locate the faulty power supply and determine the status of the LEDs.

If the line input LED is not lit, check the power cable and power source to which the power supply is connected.

•Make sure that the power cable is securely attached to the power source and the power supply.

•Connect another device to the power source to verify if it is working.

•Connect the cable to a different power source.

•Replace the power cable.

3.Reseat the power supply by removing and reinstalling it.

For more information, see Removing a DC power supply and Installing a DC power supply.

If the problem is not resolved, see Getting Help.

MD1400 specifications

The Dell MD1400 is a robust and versatile storage solution designed to meet the demands of modern data-intensive environments. It is particularly well-suited for organizations requiring high-performance storage that seamlessly integrates with existing infrastructures. The MD1400 features a compact 2U form factor, which allows for efficient use of rack space while ensuring ample storage capabilities.

One of the standout features of the MD1400 is its impressive scalability. Supporting up to 84 drives in a single rack, the system can accommodate a variety of drive types, including traditional spinning disks (HDDs) and solid-state drives (SSDs), enabling users to optimize performance based on their specific needs. The system is built to support both SAS and SATA interfaces, providing flexibility in drive selection and deployment.

The Dell MD1400 also incorporates advanced RAID technology, enabling users to implement data protection strategies that align with their organizational policies. With support for multiple RAID levels, including RAID 0, 1, 5, 6, 10, and 50, organizations can choose the optimal configuration to balance performance and data redundancy. This versatility ensures that mission-critical applications remain robust and can recover rapidly from hardware failures.

In terms of connectivity, the MD1400 utilizes dual controllers with redundant power supplies, ensuring high availability and minimal downtime. The dual-controller architecture allows for load balancing across multiple paths, which not only enhances performance but also ensures that data remains accessible even in the event of a controller failure.

The management of the MD1400 is another strong point, featuring an intuitive graphical user interface that simplifies storage configuration, monitoring, and maintenance tasks. The system supports various management protocols, providing seamless integration with existing IT ecosystems and making it easier for administrators to manage their storage resources effectively.

Additionally, the Dell MD1400 is designed with energy efficiency in mind. With options for low-power drives and efficient cooling mechanisms, organizations can reduce their total cost of ownership while contributing to sustainability initiatives.

In summary, the Dell MD1400 is a powerful storage solution that offers scalability, performance, and advanced data protection features. Its dual-controller architecture, flexible drive options, and user-friendly management make it an excellent choice for businesses looking to enhance their storage capabilities while ensuring data integrity and availability. Investing in the MD1400 allows organizations to stay ahead in an ever-evolving digital landscape.