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For HP3000 MPE/iX Systems

Disk Space Manager performs all the functions of a typical reload on-line. With Defragmentation, fragmented free space is no longer a problem. A single command combines small, unusable free chunks into larger, usable ones. This process is performed with no adverse effects to data.

When a large chunk of free space is needed for operating system updates, new application loading, or using HP Sort, for example, Disk Space Manager allows a goal size to be defined creating the necessary space.

Disk Space Manager eliminates wasted disk space by analyzing all files, truncating the space at the ends of all files, and returning it to system use. If files are already highly fragmented because they've been running on a system with limited free space, Disk Space Manager combines files into a single extent or spreads them evenly across all drives.

Two global commands now takes charge of all functions. With the PopulateSet feature, new drives can be added and data distributed as though a reload had been performed on-line. This is completed quickly and without the risks of a typical complete reload. The ManageSet command allows proactive file analysis, ensuring that each extent has been placed for maximum performance.

The ManageFile feature is similar to ManageSet, however instead of working on optimizing the entire system, ManageFile focuses on a target fileset. Any files contained in that fileset will be optimized according to ManageFile's intelligent algorithm. ManageFile directs the full power of Disk Space Manager at a specific fileset of files to be optimized. The system is first defragmented to create the large, free chunks needed and then is immediately optimized.

Disk Space Manager takes advantage of Hewlett-Packard's (HP) Transaction Manager, assuring safe and fast performance without compromising data integrity.

Disk Space Manager key features:

• Recover unusable, inefficient disk space by consolidating larger, usable extents on-line.
• Automatically truncates unused file portions that MPE leaves behind, and recovers thousands of sectors in seconds.
• Spread heavily-used random access files across several drives to enhance I/O performance and reduce data file fragmentation.
• Combine sequential access files into a single extent
• Combine new drives into a volume set, balancing I/O without reloading the entire system.
• Ease management of disk environment by automatically processing set defragmentation and by combining, spreading and truncating files.