Data Domain DD400 Series, User Manual

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enable
Turn on the restorer file system operations. Administrative users
only.
show compression
Display the space used by and compression achieved for files,
directories, and file systems. In general, the more often a backup
is done for a particular file or file system, the higher the
compression. Note that the display on a busy system may not
return for one to two hours. Other factors may influence the
display. Call Data Domain Technical Support to analyze displays
that seem incorrect.
show space
Display the space used by and available to file system components.
Values are in gigabytes to one decimal place. For example:
Resource Size GB Used GB Avail GB Use%
------------------- ------- ------- -------- ----
/ddvar 29.5 0.1 29.5 0%
Pre-compression - 112.5 - -
Data 3972.3 56.5 3915.8 1%
If 100% cleaned* - - - -
Meta-data 19.7 0.0 19.7 0%
Index 60.0 0.8 59.2 1%
------------------- ------- ------- -------- ----
Estimated compression ratio*: 2x
* Estimate based on 11/28/04 cleaning
The /ddvar line gives a rough idea of the amount of space used by
and available to the log files.
The Pre-compression line shows the amount of data (data sent to
the restorer from backup servers) stored on the restorer.
The Compressed section, Data line shows the size of total physical
disk space available for data, actual physical space used, and
physical space available for data storage. Warning messages go to
the system log when the Use% figure reaches 90%, 95%, and 100%.
At 100%, the restorer accepts no more data from backup servers.
The If 100% cleaned line is an estimate of actual physical space used
and physical space available for data storage if you run the filesys
clean operation four times in a row to clean 100% of the file system.
The estimate is based on the most recent clean operation.