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Top Forums UNIX for Beginners Questions & Answers Need little help in understanding UNIX file system. Post 302970582 by jim mcnamara on Friday 8th of April 2016 09:50:49 AM
Old 04-08-2016
The file/directory structure results from mapping directory contents onto the disk. It is metadata. The hierarchy does not exist at the physical disk level. One physical file can be located in data blocks in unrelated places on a single disk. Same thing for a directory.
inodes are the 'entry' point - kind of like an 'address book' for the physical file.
 

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pvremove(1M)															      pvremove(1M)

NAME
pvremove - remove LVM data structure from a physical volume SYNOPSIS
DESCRIPTION
The command clears the LVM data structure on a disk, so that it is no longer an LVM physical volume. The device may then be used by the file system or by other volume managers. The operation is denied if pv_path is assigned to a volume group. The command only clears the LVM data structure on a disk if the disk does not belong to a volume group. This avoids accidentally removing a valid physical volume under a volume group. If the physical volume to be removed belongs to a volume group, use the command to first remove the volume group associated with the physical volume. Arguments recognizes the following arguments: pv_path The character (raw) device path name of a physical volume. EXTERNAL INFLUENCES
Environment Variables determines the language in which messages are displayed. If is not specified or is null, it defaults to "C" (see lang(5)). If any internationalization variable contains an invalid setting, all internationalization variables default to "C" (see environ(5)). EXAMPLES
Remove LVM data structure on the physical volume SEE ALSO
lvremove(1M), vgremove(1M), intro(7), lvm(7). pvremove(1M)
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