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Top Forums UNIX for Dummies Questions & Answers Reading the output of df command Post 302130334 by jgt on Sunday 5th of August 2007 12:53:24 PM
Old 08-05-2007
The 'df' command gives output about file systems, not disk drives. There can be multiple file systems on a single disk, and with RAID, there can be multiple drives for a single file system.
 

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filesystem(7)						 Miscellaneous Information Manual					     filesystem(7)

NAME
filesystem - event signalling that filesystems have been mounted SYNOPSIS
filesystem [ENV]... DESCRIPTION
The filesystem event is generated by the mountall(8) daemon after it has mounted all filesystems listed in fstab(5). mountall(8) emits this event as an informational signal, services and tasks started or stopped by this event will do so in parallel with other activity. EXAMPLE
A service that wishes to be running once filesystems are mounted might use: start on filesystem SEE ALSO
mounting(7) mounted(7) virtual-filesystems(7) local-filesystems(7) remote-filesystems(7) all-swaps(7) mountall 2009-12-21 filesystem(7)
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