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Size of LVM header in non bootable disk

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Operating Systems HP-UX Size of LVM header in non bootable disk
# 1  
Old 12-06-2005
Size of LVM header in non bootable disk
hi,
i have a query regarding the size of the LVM header. Since the LVM header of a bootable disk is always 2912KB. The header size of a non bootable disk is not fixed. In Bootable disk after the LVM header (2912 KB=5824 sectors)the user data starts or we can say LV extents starts.
If i extend any Logical volume from bootable disk to my 2nd hdd of the same VG. suppose i increase the size of /home LV 2GB to 5GB and it extended on the new hdd which i attatched on my machine.

If on PV1 512 PE(4MB) resides and remaining PE resides on 2nd hdd.
How i can trverse on the 2nd hdd from where my 513th extent start?
I am developing a C++ module that for this.
Please guide me how i can get this information.

Regards
Sandy
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LEARN ABOUT HPUX

pvremove

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)