Starting the consistency check

Consistency check of FSC vs. FSE media

Consistency check of the File System Catalog against FSE media matches file information from the Data Location Catalog and Name Space Catalog, which are parts of the File System Catalog, with Fast Recovery Information (FRI) on the belonging FSE media. This process can be executed either for all FSE media related to the specified FSE partition or to particular FSE media or FSE medium volumes.

TIP: Consistency check of a File System Catalog with all belonging FSE media might take considerable time, especially on large FSE partitions with numerous FSE media. In such circumstances, you are advised to schedule several checks with limited set of FSE media to run in periods when the FSE implementation is not heavily loaded.

All mismatches found during the consistency check process are reported to the FSE check log on the FSE server. Location of the log file depends on the platform.

Linux specific

The FSE check log file is named check_media_fsc_PartitionName.log and located in the directory /var/opt/fse/log.

Windows specific

The FSE check log file is named check_media_fsc_PartitionName.log and located in the directory %InstallPath%\var\log.

The value of %InstallPath% depends on the choice made in the FSE installation process. It defaults to C:\Program Files\Hewlett-Packard\FSE.

For certain types of inconsistencies, you can enable automatic correction and update DLC and NSC with missing information. This feature can be used to resolve situations when reference to a file on the FSE medium is missing in the File System Catalog (missing in FSC) or when there are inconsistencies in the Name Space Catalog (no NSC).

You can further specify that automatic correction process removes all entries in the File System Catalog that have not been found in the belonging Fast Recovery Information blocks on FSE media. An entry in this context means information about the location on the FSE media of any of the following: file generation, file copy, file split.

If other types of inconsistencies are reported, you need to perform File System Catalog recovery. For details, see ”File System Catalog recovery” on page 235.

IMPORTANT: When automatic correction and removal of missing entries from FSC are enabled, the consistency check of File System Catalog against FSE media invalidates results of any prior reorganizational scans that have been run on the FSE partition.

When starting the consistency check using FSE command-line interface, you have two choices: you can either compare a File System Catalog with all related FSE media, or you can specify the barcodes of FSE media or the numbers of FSE medium volumes that you would like to include in the check:

•To start the consistency check of a FSC with all related FSE media, using FSE command-line interface, run the following command:

fsecheck --fsc-media PartitionName [--autocorrect[--match-media]]

The option --autocorrectenables automatic FSC correction and the option --match-mediaenables removal of entries from FSC that have not been found in the FRI or on FSE media.

182 Monitoring and maintaining FSE

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.

HP File System Extender (FSE) manual Consistency check of FSC vs. FSE media

Models: File System Extender (FSE)

Consistency check of FSC vs. FSE media

Windows specific