HP File System Extender (FSE) New features, Enhanced robustness, Support for LTO Ultrium 3 media

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2 New features

Enhanced robustness

FSE 3.2 introduces several changes in the operation of FSE server to enhance the robustness of FSE operations. The changes enable the FSE server to detect anomalies on media and to prevent improper operation which could lead to data loss. The enhancements include the following:

The process of recreating Fast Recovery Information (FRI) can now be performed for WORM and full media:

Fast Recovery Information (FRI) is saved to the FRI directory, /var/opt/fse/fri, if there is not enough space on tape media.

The process of recreating Fast Recovery Information (FRI) for closed volumes on WORM media now saves FRI to the FRI directory, /var/opt/fse/fri. Note that FSE does not support WORM media.

Automatic correction of FSC during an FSC vs. media check (fsecheck --fsc-media

--autocorrect) invalidates the results of previous reorganization scans. To reorganize media, you have to rerun the reorganization scan.

During an FSC recovery, you cannot start the reorganization scan or reorganization job.

Data formats are now more strictly checked during FSC recovery and FSC vs. media checks

Improvements of the reorganization job and its interoperability with other jobs.

Support for LTO Ultrium 3 media

FSE 3.2 introduces the same level of support for LTO Ultrium 3 media as for LTO Ultrium 1 and 2 media.

Miscellaneous enhancements

Enhanced fse command

To ease troubleshooting of potential problems with disk volume access on Windows systems, the fse command was extended with new options --list-volumes[--detail]. These options can be used to report states of all local volumes, to determine the access mode for a particular volume using the HSM file system, and to suggest possible solutions in case of problems.

For details, see description of the fse command in the FSE command-line reference.

Enhanced fsepartition command

The fsepartition command was improved for the FSE release 3.2. When retrieving detailed information using this command (fsepartition --list--detail), two additional entries are reported:

FSE partition type: regular, WORM

current activity on the FSE partition: the partition is enabled, the partition is disabled, a recovery job runs on the partition, a reorganizational scan job runs on the partition.

For details, see the FSE User’s Guide and the FSE command-line reference.

hp StorageWorks File System Extender Release Notes 13

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Contents HP StorageWorks File System Extender File System Extender 3.2 Release Notes Contents Known issues and workarounds Intended audience About this guideRelated documentation Prerequisites Document conventions and symbolsSoftware requirements Hardware requirementsHP-authorized reseller HP technical supportHelpful web sites Page Hardware requirements Supported hardware and softwareSupported storage arrays, tape drives, and libraries Linux platform Supported operating systems and platformsWindows platform Software requirementsSupported third-party software Enhanced robustness New featuresSupport for LTO Ultrium 3 media Miscellaneous enhancementsNew features Recommendations Shortening the termination delay for FSE commandsGeneral recommendations Keeping the FSC and Hsmdb journals smallScanGranularity = Preventing exhaustion of Corba socketsMigrating to a newer tape drive technology Linux-specific recommendationsImproving performance of the FSE-Samba integration Windows-specific recommendationsCommon limitations LimitationsLinux-specific limitations Reusing file systems for newly configured FSE partitionsSpecial file types are not supported Directories with sticky bit not supported Limited symbolic link supportFile size limitation Append-only and immutable files cannot be releasedFile transfer blockage between Samba client and server Recycle Bin must be disabled on FSE implementation Unsupported Windows services and file system featuresWindows-specific limitations Unsupported third-party softwareLimitations on the Traditional Chinese Windows systems Limited support for Windows disk checkerUsing the command fsefile --migrateDirectoryPath Filename Known issues and workaroundsKnown issues and workarounds
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