NOTE: HP recommends that you add another 50% as a reserve when calculating the maximum FSC size.

The following examples present space usage for typical configurations.

Example 1: three copies, one generation:

First generation takes (189 for FSC) + (36 x 3 for volume index) = 297 bytes

Each additional generation takes 47 + (36 x 3) = 155 bytes

Total size = ((297 + add. attr. size) x max. number of files) + (155 x number of add. generations) Example 2: two copies, one generation:

First generation takes (180 for FSC) + (36 x 2 for volume index) = 252 bytes

Each additional generation takes 38 + (36 x 2) = 110 bytes

Total size = ((252 + add. attr. size) x max. number of files) + (110 x number of add. generations) Example 3: one copy, one generation:

First generation takes (162 for FSC) + (36 for volume index) = 198 bytes

Each additional generation takes 20 + 36 = 56 bytes

Total size = ((198 + add. attr. size) x max. number of files) + (56 x number of add. generations)

NOTE: A well defined FSE backup policy with regular backups prevents the excessive growth of the transaction log files of the File System Catalogs (FSCs). The transaction log files are committed into the main databases during the FSE backup process.

For details, see the FSE user guide, chapter ”Backup, restore, and recovery”, section ”Backup”.

Formula for the expected Hierarchical Storage Manager Database (HSMDB) size

This is the formula for calculating the maximum Hierarchical Storage Management Database (HSMDB) size:

maxHSMDBSize = (nf + 12) + [nf ⋅ pdi ⋅ (afnl + 30)] + [nf ⋅ pon ⋅ (afnl + 40) ]

where the meaning of the parameters is:

maxHSMDBsize ..... the maximum HSM database size in bytes.

nf ..... the expected number of files on an HSM file system.

pdi ..... the percentage of directories (%).

afnl ..... the average length of file names in bytes.

pon ..... the percentage of online files (%).

NOTE: A well defined FSE backup policy with regular backups prevents the excessive growth of the transaction log files of the Hierarchical Storage Management Databases (HSMDBs). The transaction log files are committed into the main databases during the FSE backup process.

For details, see the FSE user guide, chapter ”Backup, restore, and recovery”, section ”Backup”.

16 Introduction and preparation basics

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HP File System Extender (FSE) manual Introduction and preparation basics
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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.
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