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HP File System Extender (FSE) manual Disk media specifics, `-- dm000001

Models: File System Extender (FSE)

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You define this parameter in the /etc/exports file on the NFS server for this particular export. HP recommends that you make such exports available only for the FSE server. The following is the example of the appropriate entry in the /etc/exports file:

/mnt/disk_medium linux_host.company.com(rw,no_squash_root)

Windows specific

On Windows platform, a file system for a disk medium must be mounted to a subdirectory of %InstallPath%\var\dm; for example:

C:\Program Files\Hewlett-Packard\FSE\var\dm\dm000001

C:\Program Files\Hewlett-Packard\FSE\var\dm\dm000002

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

To configure a mount point for a file system that will be used as a disk medium, use the Disk Management interface (click Start > Settings > Control Panel, double-click Administrative Tools and then Computer Management, and select Disk Management).

Disk media specifics

Main difference between tape and disk media is in preparing media for use by FSE. A disk medium must be mounted to a mount point at the disk media location before it can be used. The location is platform-dependent.

Linux specific

On Linux platform, disk media are located in the directory /var/opt/fse/dm.

Windows specific

On Windows platform, disk media are located in the directory %InstallPath%\var\dm.

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

Afterwards disk media also needs to be formatted and initialized, but you must be aware of the distinctions between the different media types:

•Disk media can only be added to an FSE disk media pool.

•Maximum number of medium volumes on an FSE disk medium is 255. You define the size of medium volumes in the media pool configuration file.

NOTE: When configuring an FSE disk media pool, you need to specify a VolumeSize parameter large enough that 255 * VolumeSize is larger than the total disk medium size. Otherwise, a warning is issued and the number of volumes is set to 255, leaving some unused space.

•Disk media are formatted and initialized in the same way as tape media. Formatting of disk media creates subdirectories for medium volumes. At initialization, the size of medium volumes is written to the Resource Management Database and to each initialized volume.

•A particular disk medium volume is closed when the total size of all files on the volume reaches the volume size defined in the disk media pool configuration.

•Once a disk medium is formatted, it is not possible to add additional medium volumes to the medium. When running out of space, another disk medium must be added to the disk media pool.

•The barcode of a disk medium is the relative part of the mount point, for example dm000001, dm000002. Its length is limited to 64 characters.

Example layout of disk media

-- dm

`-- dm000001

medium barcode

HP StorageWorks File System Extender Software user guide 101

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HP File System Extender (FSE) Disk media specifics, Mnt/diskmedium linuxhost.company.comrw,nosquashroot, `-- dm000001
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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.