the "-c" option, the checkpointed file source will be restored to the destination. If the destination is omitted then system will try to restore to the original (non- checkpointed) path.

For example:

cp -c /v6.chkpnt/ckpt1/docs/sample.doc

will restore to:

/v6/docs/sample.doc

The cp command is also available as part of the chkpnt command line operation. The syntax is identical except that the command is prefaced with chkpnt, and the "- c" option is not required:

chkpnt cp source [destination]

The "-c" option is not required when cp is part of the chkpnt command because the chkpnt prefix conveys the operation's context: to restore a checkpointed object to the live filesystem.

While a checkpoint file restore operation is underway, the file is locked for the duration of the operation and clients can perform no other action against that file. Any attempt to access the file during the restore operation will result in an error. For example, when trying to access the file from a UNIX client, users may see the following:

$ cat sample.doc > /dev/null

cat: sample.doc: Input/Output error

Similarly, a Windows NT user may see one of the errors shown in Figure 6-12or Figure 6-13when attempting to access a file when a checkpoint restore operation is underway against that same file.

6-18Sun StorEdge 5310 NAS Troubleshooting Guide • December 2004

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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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