To stop mirroring on a volume, the user must "break" the mirror. The mirror can be broken from either the master or mirror system. When the mirror is broken, it enters the BREAKING state until the last file system transactions in transit have been acknowledged, and the break request has been communicated to both master and mirror. Data transfer between master and mirror is then stopped, the mirror definition is removed from the mirror service, and the mirror buffer is removed on the master volume. The mirror volume remains mounted as a read-only NBD volume. A broken mirror can be restarted at any time, but must go through the entire creation and replication process from the beginning.

4.2.6Cannot perform first-time synchronization of mirror system:

File system activity on the master system must be stopped or reduced to a very low level. It is much more filesystem intensive to synchronize the mirror for the first time than it is to maintain it.

4.2.7Filesystem errors, such as run check, directory broken, etc.:

StorEdge File Replicator is designed to immediately break any active mirrors to a volume with filesystem problems, to avoid replicating these errors. The errors must be corrected via the fsck procedure before reestablishing the mirror.

4.2.8Error messages, panics or hang condition when enabling mirror:

Ensure that the master and mirror systems are running the same version of the StorEdge operating system.

Chapter 4 StorEdge File Replicator 4-13

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Sun Microsystems 5310 NAS manual Cannot perform first-time synchronization of mirror system
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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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