08-03-2010
LVM problem
hi friends I have a problem ..
actually I m working on LVM in linux through WinHex ..I have made one volume group and it has two logical volumes logvol00 and logvol01 and both are respectively mount on /rahul and /rock..I have found both folder(rahul & rock) in root directory which use ext file system but I m unable to reach data of rahul and rock folder.But through searching WinHex I got that data in LVM partition..Actually the main problem is that is there any structure of LVM so that i can find my data like file system(ext and more).second problem is that after extending the volume group by other hard disk I m unable to decipher connectivity b/w data from one to other hard disk..
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hi friends I have a problem ..
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LEARN ABOUT CENTOS
vgscan
VGSCAN(8) System Manager's Manual VGSCAN(8)
NAME
vgscan - scan all disks for volume groups and rebuild caches
SYNOPSIS
vgscan [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--mknodes] [-P|--partial] [-v|--verbose]
DESCRIPTION
vgscan scans all SCSI, (E)IDE disks, multiple devices and a bunch of other disk devices in the system looking for LVM physical volumes and
volume groups. Define a filter in lvm.conf(5) to restrict the scan to avoid a CD ROM, for example.
In LVM2, vgscans take place automatically; but you might still need to run one explicitly after changing hardware.
OPTIONS
See lvm(8) for common options.
--mknodes
Also checks the LVM special files in /dev that are needed for active logical volumes and creates any missing ones and removes unused
ones.
--cache
Scan devices for LVM physical volumes and volume groups and instruct the lvmetad daemon to update its cached state accordingly.
SEE ALSO
lvm(8), vgcreate(8), vgchange(8)
Sistina Software UK LVM TOOLS 2.02.105(2)-RHEL7 (2014-03-26) VGSCAN(8)