FIGURE 4-4The Mirror Log and Primary Journal

The Primary Journal floats through the Mirror Log functioning in a similar manner to that in which it does now. Sun StorEdge 5310 NAS maintains hints in the filesystem that enable it to quickly locate its position in both the Primary Journal and Mirror Log if an outage (e.g., a complete power loss, component failure, etc.) is experienced. As with all Sun StorEdge 5310 NAS products, the integrity of the filesystem is guaranteed by the presence and use of the journal, irrespective of the type of outage experienced.

4.1.4Mirroring Variations

As with many technologies, there are a number of different ways mirroring can be employed. These variations can be employed irrespective of the type of mirroring (Checkpoint/Snapshot, Real-time/Synchronous or Pseudo Real- time/Asynchronous) used.

4.1.4.1Many-to-One Mirroring

In Many-to-One mirroring, several Master systems are mirrored to a single Mirror target. Many-to-One mirroring is frequently used by customers for DR purposes, to collect exact duplicates of multiple systems at multiple remote locations at a single, central site, where recovery scenarios can be centrally managed. For instance, remote departmental systems in Los Angeles, Houston and San Francisco might be mirrored to a single corporate Datacenter in Kansas City. In the event any one of the remote

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Sun Microsystems 5310 NAS manual Mirroring Variations, Many-to-One Mirroring
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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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