Migration problems

Description	All migrations are waiting for FSE disk buffer and data transfers to FSE media do not start.
Explanation	If FSE jobs are aborted, killed or they die for an unknown reason, it may happen that the
	temporary data which they create is not automatically removed, but is left in the FSE disk buffer,
	occupying valuable storage space. In such situations, FSE jobs will report FSE disk buffer as
	being full in the FSE event log. The jobs will remain in the waiting state and none of them will
	start writing to tape.
Workaround	If this happens, the solution is to restart FSE processes on the consolidated FSE system or FSE
	server using the fse --restartcommand. At the FSE startup, Resource Manager
	automatically removes all data from the file systems assigned to the FSE disk buffer.
Description	Files are not migrated because the file system ran out of free space.
Explanation	The FSE implementation stops migrating files if a file system for FSE databases and system files
	runs out of free space.
	Linux specific
	Mount point of the file system for FSE databases and system files is /var/opt/fse.
	Windows specific
	Mount point of the file system for FSE databases and system files is %InstallPath%\var.
	The value of %InstallPath% depends on the choice made in the FSE installation process. It
	defaults to C:\Program Files\Hewlett-Packard\FSE.
Workaround	Under special circumstances, such as when there are many small files or many changes of file
	properties, Fast Recovery Information (FRI) requires a large amount of disk space. You need to
	dedicate enough disk space for the belonging file system for FSE databases and system files to
	prevent it from running out of free space.

	IMPORTANT: This is potentially dangerous since it may result in corrupt FRI files. You can
	prevent this by calculating the expected FRI size and dedicating enough disk space for the file
	system holding temporary FRI data files.

Use the following formula to calculate the expected FRI size:

Nv ⋅ Sv ⋅ [(350 + Lf ) ⋅ Nm ⁄ Tbks]

Sfri = ---------------------------------------------------------------------------------------

[Sf ⋅ Nm ⁄ Tbks]

where the meaning of the parameters is:

Sfri ..... estimated maximum size of FRI files on disk.

Nv ..... total number of open FSE medium volumes in the FSE implementation. This number

is determined by the number of configured FSE media pools that contain media with migrated files.

Sv ..... size of an FSE medium volume on tape.

Sf ..... average size of files being migrated.

Lf ..... average filename length of files being migrated.

Nm ..... average number of files migrated in the same migration job.

Tbks ..... block size on tape medium. Note that this only applies if all FSE media pools are

configured with the same block size.

[x] ..... the value in the brackets rounded up to the nearest integer.

260 Troubleshooting

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) Migration problems, Start writing to tape, Runs out of free space

Models: File System Extender (FSE)

Migration problems

start writing to tape.

Workaround

runs out of free space.

Windows specific

defaults to C:\Program Files\Hewlett-Packard\FSE.

Workaround

prevent it from running out of free space.

system holding temporary FRI data files.

File System Extender (FSE) specifications