8.Select option 7, “Save Changes”

9.Press [Esc] to return to the menu, or proceed as above to define another route.

2.13.1NIC speed and duplex negotiation issues.

StorEdge is reporting Ethernet transmit and receive errors on a switched network.

By default, the StorEdge Ethernet driver is set to auto-negotiate speed and duplex. This works well the great majority of the time, but occasionally there is a problem in the negotiation between the switch and NIC. The primary indications of this problem are extremely slow transfer speed and an increase in packet errors, usually collisions, which can be found in the port statistics on either the StorEdge or the switch.

Note – These problems are not isolated to StorEdge. We have investigated performance issues where other workstations on the network were the source of performance problems for exactly this reason.

The source of this problem is that the speed and duplex were not successfully negotiated. When a NIC or switch port is initialized, assuming that it is configured to auto-negotiate, the NIC and the port will negotiate the highest available speed and duplex.

One possible cause for this is that either StorEdge or the switch port is not set to auto-negotiate. Forcing a particular setting, such as 1000Mb/full duplex, causes the device not to negotiate. Therefore, if only one side is set to auto-negotiate, the negotiation will fail.

It is also possible that the negotiation can fail even though enabled on both sides. First, you should try another cable, and another switch port, as negotiation problems can be caused by hardware. If negotiation is still unsuccessful, the final recourse is to force both StorEdge and the connected switch port to the desired speed and duplex.

The following commands are used to check and/or force speed and duplex for the StorEdge Ethernet driver.

This functionality is only available at the StorEdge CLI (command line interface).

1.To access the StorEdge CLI, connect to the StorEdge via Telnet, and type “admin” at the [menu] prompt and enter the administrator password.

Chapter 2 NAS Head 2-67

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Sun Microsystems 5310 NAS manual NIC speed and duplex negotiation issues
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5310 NAS specifications

Sun Microsystems, known for its innovative computing solutions, launched the Sun 5310 Network Attached Storage (NAS) system, which marked a significant advancement in the realm of storage solutions in the early 2000s. The 5310 NAS was designed to provide high-performance, reliable, and scalable storage tailored for enterprise environments.

One of the standout features of the Sun 5310 NAS is its file-serving capabilities, which support multiple protocols, notably NFS (Network File System) and CIFS (Common Internet File System). This dual-protocol support allowed organizations to seamlessly integrate the NAS into diverse IT ecosystems, facilitating interoperability between UNIX, Linux, and Windows systems. The enhanced file-sharing capabilities made it an ideal solution for businesses with mixed operating environments.

The Sun 5310 NAS incorporates cutting-edge technologies to ensure high availability and data integrity. The system utilized a RAID (Redundant Array of Independent Disks) technology, providing various RAID levels to protect against data loss while optimizing performance. Additionally, the device featured hot-swappable drives, enabling maintenance and upgrades with minimal downtime, a crucial factor for business continuity.

Equipped with advanced management software, the Sun 5310 NAS offered users an intuitive interface for monitoring storage health and performance. This software included comprehensive reporting functionalities that allowed IT administrators to oversee usage patterns and capacity planning efficiently.

Scalability was another defining characteristic of the Sun 5310 NAS. The system could easily expand with additional storage modules, accommodating the growing needs of an organization without the necessity for complete system overhauls. This flexibility ensured that businesses could adapt their storage solutions to meet evolving data storage needs without incurring significant costs or disruptions.

In terms of performance, the Sun 5310 NAS featured high I/O throughput achieved through its robust hardware architecture and optimized file serving capabilities. This performance baseline was crucial for organizations that relied on heavy data workloads and required rapid access to information.

In summary, the Sun 5310 NAS from Sun Microsystems embodied a forward-thinking approach to network storage, blending reliability, scalability, and multi-protocol support. Its user-friendly management software, combined with the robustness of RAID technology and hot-swappable drives, made it a preferred choice for enterprises looking to streamline their storage infrastructure while safeguarding critical data.
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