Determining the unusable media

FSE detects read errors when recalling the migrated data from FSE disk or tape media to an HSM file system. After a read error is detected, the status of the FSE medium is automatically set to unusable.

CAUTION: Before treating an FSE medium as unreadable, make sure it is not loaded in a faulty tape drive. In certain circumstances, an FSE medium may acquire the unusable status because of problems with the tape drive in which it is loaded. In this situation, the status of the drive itself is set to error.

You can get a list of all currently unusable media by filtering the output of the fsemedium --listcommand, as follows:

Linux specific

# fsemedium --list grep unusable Windows specific

%InstallPath%\bin>fsemedium --list find "unusable"

The command output will be similar to the following:

000016	LTO-1	LTO-pool_1	unusable	lib:SA:4		1
000025	LTO-2	LTO-pool_2	unusable	drv:drive_2	(lib:SA:4)	1
000103	LTO-3	LTO-pool_3	unusable	drv:drive_1	(lib:SA:6)	1

For more information on the fsemedium command, see the FSE CLI reference.

Starting redundant copy recreation

The recreation process is executed for a single FSE medium at a time. The medium does not have to be allocated or loaded into an FSE drive. To start the redundant copy recreation process, invoke the following command:

fsemedium --copy-contents Barcode [--no-monitor]

By default, fsemedium reports the progress of the maintenance job to the standard output and enables you to monitor the recreation process in the command shell. You can disable monitoring (make fsemedium return to the command prompt immediately) by specifying the --no-monitoroption.

With monitoring enabled, the command generates an output similar to the following:

fsemedium --copy-contents 020776

[11:42:09] Started (JobID: 20040121000002).

[11:42:09] Preparing list of source media

[11:42:09] 2 media needed for recall (bc: 050003, 050004)

[11:42:09] Request resources (bc: 050003) ...

[11:42:09] Resources allocated.

[11:42:09] Medium 050003 is already present in drive drv1.

[11:42:09] Starting Back End Agent.

[11:43:58] Medium 050003, volume 1: Reading files…

[12:20:58] Medium 050003, volume 1: Files written to disk buffer.

[12:46:02] Reading finished, releasing resources.

[12:47:12] Requesting resources...

[12:47:12] Resources allocated.

[12:48:42] Loading medium 050010 to drive drv2.

HP StorageWorks File System Extender Software user guide 115

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) Determining the unusable media, Starting redundant copy recreation

Models: File System Extender (FSE)