User's Manual

HP StorageWorks File System Extender Software user guide 111
Displaying the FSE media-based statistics
To check the statistics for all FSE media that belong to a particular FSE partition:
1. Ensure that the scan job running on the chosen partition has completed.
2. Run the command:
You can also specify a value for the optional SlackThreshold% argument to filter out media for
which the percentage of obsolete data is not high enough, and thus less likely to need reorganizing.
Example command output:
The meaning of the columns is the following:
Running the media reorganization job
Using the fsemedium command, you can run the copying step of the reorganization process on all
medium volumes of a specific medium, on a single FSE medium volume, or on a series of specified FSE
medium volumes.
By default, the command reports the progress of the reorganization job to the command shell for
monitoring purposes. You can disable monitoring by specifying the --no-monitor option.
NOTE: To prevent the copying step of the FSE reorganization job from copying the data to the same
medium (that is, to the medium whose medium volumes are being reorganized), set the condition status of
the medium being reorganized to unreliable before running the reorganization job. Use the
fsemedium --mark-unreliable command for this purpose.
Note that FSE media with the condition status unreliable are not available for migrations. After the
reorganization job has finished, and the reorganized medium volumes have been reinitialized, you must
remove the unreliable status of the reorganized medium using the fsemedium --mark-good
command.
Total Total amount of space on the FSE media assigned to the media pool.
SlackSpace Amount of FSE slack space (in percentage).
FSE slack space is the space on FSE media occupied by migrated file generations
considered obsolete (not valid) by the reorganizational scan job.
fsepartition --reorg-stat PartitionName [SlackThreshold%]
Barcode VolNum ValidData[MB] Total[MB] SlackSpace[%]
Med001 6 980 1200 19%
Med002 5 190 1000 81%
Med003 5 0 1000 100%
Med004 5 100 1000 90%
VolNum Number of the FSE medium volumes on the medium.
ValidData Amount of space on the FSE medium occupied by valid file generations.
If the FSE medium has not yet been scanned for reorganization, it has 0 (zero)
displayed in place of the ValidData amount.
Total Total amount of space on the FSE medium.
SlackSpace Percentage of FSE slack space.
FSE slack space is the space on the medium occupied by migrated file generations
that were considered obsolete by the reorganizational scan job.