Local backup or restore fails with ?PNReduce error? in log.

This message indicates that StorEdge could not read the pathname (PN) provided for backup or restore. The local backup and restore utilities require a full path, they are case sensitive, and they do not allow the use of wildcards (?*? or ???). Specifying a directory causes it to be backed up in its entirety.

NDMP: Can?t browse backup history.

Certain NDMP backup utilities are not able to browse backup history without a configuration change on the StorEdge. To make this configuration change, access the StorEdge CLI, as follows:

1.Connect to the StorEdge via Telnet, serial console, or keyboard console.

2.Type “admin” at the [menu] prompt and enter the administrator password.

3.At the CLI, enter “ndmp set dump.pathnode=yes”

4.Type “ndmp set tar.pathnode=yes”

5.Type “ndmp save”

NDMP incremental/differential backups back up all files.

Some Windows applications, such as virus scanning software, update timestamps on all files that they scan. NDMP software uses this same timestamp to identify whether the file has been backed up since the last full backup. As a result, NDMP sees all these files as modified, and effectively performs a full backup instead of the desired incremental or differential.

To avoid this problem, it is possible to configure StorEdge to ignore this timestamp when performing NDMP backup. To do so, proceed as follows:

1.Connect to the StorEdge via Telnet, serial console, or keyboard console.

2.Type “admin” at the [menu] prompt and enter the administrator password.

3.Enter “ndmp set ignore.ctime=yes”

4.Enter “ndmp save”

Chapter 2 NAS Head 2-91

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Sun Microsystems 5310 NAS Local backup or restore fails with ?PNReduce error? in log, Ndmp Can?t browse backup history
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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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