•while the FSE implementation is fully operational, after the FSE administrator has manually switched from LAM to FAM using FSE command-line interface.

In Limited Access Mode, FSE users and third-party applications can only browse the HSM file system directory tree and access files that are still online. They cannot modify existing data, add new directories and files, or recall offline files. If an application tries to access a file while the HSM file system is operating in LAM, it receives an error. If LAM is manually set for an HSM file system while all FSE processes are running, the HSM process continues to trigger migrations, releases and deletions on this HSM file system, according to the migration, release, and deletion policies that are configured for the appropriate FSE partition.

In contrast, Full Access Mode does not constrain FSE users in any way. All data movement processes are enabled and you can use all the features that are generally available for HSM file systems in the FSE implementation.

NOTE: LAM and FAM are compatible with both regular and WORM FSE partitions. When an HSM file system is operating in FAM, WORM is fully supported, while when operating in LAM, the LAM restrictions prevail over the configured WORM policies.

For information on how to switch manually between the HSM file system access modes, see ”Switching the access mode for an HSM file system” on page 156.

NOTE: For information on how to determine the access mode for a particular HSM file system or troubleshoot potential problems with disk volume access, see description of the fse command in the FSE command-line reference.

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HP File System Extender (FSE) manual HP StorageWorks File System Extender Software user guide
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File System Extender (FSE) specifications

HP File System Extender (FSE) is a sophisticated solution designed to optimize data storage management for enterprises that deal with large volumes of unstructured data. This technology addresses the challenges of data growth and the need for effective data retention strategies, enabling organizations to store and manage their information more efficiently.

One of the main features of HP FSE is its ability to intelligently migrate data between primary and secondary storage. By utilizing policies that determine when to move infrequently accessed files to lower-cost storage environments, FSE helps reduce the strain on primary storage systems and saves on costs associated with high-performance storage solutions. This tiered approach to data management ensures that organizations can access the data they need quickly while still maintaining an efficient overall storage architecture.

Another notable characteristic of HP FSE is its seamless integration with existing storage infrastructures. The solution works with a variety of storage systems, allowing organizations to utilize their current investments without the need for significant changes to their infrastructure. This interoperability is powered by advanced technologies that facilitate data migration and retrieval, ensuring a smooth transition for organizations looking to optimize their storage strategies.

Additionally, HP FSE is equipped with robust reporting and analytics capabilities. This functionality provides organizations with insights into their storage usage, helping them understand data patterns and optimize their storage environments accordingly. By having visibility into which files are accessed most frequently and which are rarely used, organizations can make informed decisions on data retention policies and storage management.

Security is paramount in data management, and HP FSE addresses this concern by implementing advanced data protection features. This includes data encryption, secure access controls, and compliance with industry regulations, ensuring that sensitive information is safeguarded throughout its lifecycle.

Overall, HP File System Extender is a comprehensive data storage solution that combines intelligent data management, seamless integration, insightful analytics, and robust security features. By leveraging these capabilities, organizations can efficiently manage their unstructured data, lower costs, and enhance operational efficiency, making it an invaluable tool in today’s data-driven landscape.
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