The Sun QFS File System Configuration and Administration Guide is a comprehensive guide to
both archiving and non-archiving configurations, unless otherwise specified. The Sun QFS file system, a configurable file system that presents a standard UNIX file system interface to users, does not require changes to user programs or to the UNIX kernel.
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Another in the series of What Works with What deals with SAM-QFS, an integrated hierarchical storage manager (HSM) and storage area network (SAN) file system. SAM, the announcement explains, is the HSM storage and archive management component; QFS is the SAN-scalable high performance file system component. SAM-QFS also has integrated disk volume management and tape volume management. QFS also has a write once, read many times (WORM) file system capability. QFS can be used independently of SAM when just a file system is needed. SAM requires QFS, however, and cannot be used independently of QFS. This "What Works With What" covers the specifics of what works with SAM-QFS (includes SAM-FS) 5.0 and QFS 5.0. This WWWW encompasses patch -01.
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The release notes for Sun QFS and SAM-QFS 5.2 point out how these solutions provide the foundation for the next generation of file system and storage archive management products. Sun QFS and SAM-QFS 5.2 improve stability and performance over the previous SAM-QFS products. Although no significant new features are provided, several key enhancements are intended to ensure the safety of your data. In addition, a number of bug fixes have been included, an abridged list of which is available.
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As certain Hierarchical Storage Management (HSM) systems do not scale as well as others, users frequently need to migrate to more capacious solutions in order to meet their storage needs. In his blog post, Israel Pacheco "The Challenge -- Migrate HSM Systems" offers some suggestions for migrating large volumes of data from old to new HSM systems in a timely fashion.
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