NOTE: Commands for managing LVM physical volumes begin with the letters pv (physical volume) and are located in the /sbin directory.

In the example below, the first partition of the first SCSI disk and the first partition on the second SCSI disk are initialized as LVM physical volumes and are dedicated to the LVM volumes. Use values according to your actual disk configuration:

#pvcreate /dev/cciss/c0d_p1

#pvcreate /dev/cciss/c0d_p2

Step 3: Create and initialize LVM logical volume groups

LVM logical volume groups are a layer on top of the LVM physical volumes. One LVM logical volume group can occupy one or more LVM physical volumes.

NOTE: Commands for managing LVM logical volume groups begin with the letters vg (volume group) and are located in the /sbin directory.

CAUTION: HP recommends to separate the FSE databases and system files from the user data on the HSM file systems by putting them on two separate LVM volume groups, as shown in the following examples. This helps increasing data safety.

In the following example, the newly created LVM physical volume /dev/cciss/c0d_p1 is assigned to the LVM volume group vg_fse, and the LVM physical volume /dev/cciss/c0d_p2 is assigned to the LVM volume group vg_fsesfs. The volume group vg_fse will store FSE databases and system files, and the volume group vg_fsefs will store the HSM file systems with user files and directories.

When creating the LVM volume groups, use names and values according to your preferences and your actual LVM physical volume configuration.

To create the volume groups using the default physical extent size, invoke the following commands:

#vgcreate vg_fse /dev/cciss/c0d_p1

#vgcreate vg_fsefs /dev/cciss/c0d_p2

NOTE: If you intend to create LVM logical volumes larger than 256 GB, you must use the option -s(--physicalextentsize) with vgcreate, and specify a physical extent larger than 4 MB.

For example: a physical extent of 4 MB enables LVM to address up to 256 GB and a physical extent of 32 MB allows addressing 2 TB of disk space. Note that the recommended physical extent size for the FSE file system and disk media (if under LVM) volume groups is 32 MB.

For details on using the vgcreate command, see the vgcreate man page (man vgcreate).

To create the volume groups using the physical extent size of 32 MB, invoke the following commands:

#vgcreate -s 32M vg_fse /dev/cciss/c0d_p1

#vgcreate -s 32M vg_fsefs /dev/cciss/c0d_p2

Step 4: Create and initialize LVM logical volumes

LVM logical volumes are virtual partitions and can be mounted like ordinary partitions once file systems are created on them.

28 Preparing file systems for FSE

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HP File System Extender (FSE) Create and initialize LVM logical volume groups, Create and initialize LVM logical volumes
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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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