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HP File System Extender (FSE) Hsmfs Notes, MigID 273932147200 FileSize 18691, OwnerID 154336

Models: File System Extender (FSE)

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•Run consistency check of the File System Catalog and enable automatic correction. For details, see Consistency check of FSC vs. FSE media, page 182.

The following mismatches may also result from the above condition.

•suspicious

A file is reported as suspicious when it exists on the HSM file system but does not have a file ID. It is possible that the FSE implementation is unaware of its existence. Possible causes for this file state are:

•The disk was full when the file was created and the extended file attributes that FSE uses could not be written.

•The file was created before the platform-native file system was mounted as an HSM file system (for example, the lost+found directory does not have its file ID).

•A power failure occurred and the file ID was not written or the Hierarchical Storage Manager did not receive the file system event notification.

•The file is new and the Hierarchical Storage Manager did not get the file system event notification yet.

•offline file is prolonged or not shortened

Files that have not been released properly or which have not been fully recalled due to an error have the “prolonged” status. In such cases, the file is in an offline state but still occupies storage space.

To resolve the problem, first recall the file by accessing it, and then release it with the fsefile --releasecommand.

•mismatch report, such as:

•MigrationID mismatch

•Owner mismatch

•Name mismatch

•Not all attributes in NSC

•Size mismatch

NOTE: FSE implementation is able to trace “suspicious” files and put them under FSE control in time. To resolve their status at once, use the fsefile --migratecommand to put them on the dirty file list. This way the files are immediately recognized and their attributes are preserved.

For files for which a mismatch in FileSize, FileName or OwnerID is reported, the last file system event was most probably not reported to the Hierarchical Storage Manager. To resolve such mismatches, use the fsefile --trigger-migrationcommand to manually migrate the files.

Example results of the FSC vs. HSM file system consistency check

Linux specific

# fsecheck --fsc-hsmfs cosmos

 

[2003/12/03

14:49:45] Started FSC vs. HSMFS check. Partition cosmos

[2003/12/03

15:06:02] 578684 0 /mnt/fsefs_01/A9/linux-2.4.19-ea/NewFile

Missing in FSC.

 

[2003/12/03

15:06:49] 154342

273932147200

/mnt/fsefs_01/A9/linux-2.4.19-ea/COPYING

DUMP:

FSC

HSMFS Notes

MigID

273932147200

273932147200

FileSize

18691

32930 MISMATCH

FileName

COPYING

COPYING

OwnerID

154336

154336

180 Monitoring and maintaining FSE

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HP File System Extender (FSE) manual Hsmfs Notes, MigID 273932147200 FileSize 18691, OwnerID 154336
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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.