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Full Discussion: mount LVM duplication drives
Top Forums UNIX for Advanced & Expert Users mount LVM duplication drives Post 302120145 by onthetopo on Monday 4th of June 2007 02:30:30 PM
Old 06-04-2007
how to mirror a disk? You mean like setup a software RAID-1. That sounds ok. I hope it's not too complicated to do so. Please tell me instructions.
I think specifically I would need to create RAID-1 over a existing LVM volume in this case.

My current setup is following:
lvm,lvdisplay:
LV Name /dev/VolGroup00/LogVol00
VG Name VolGroup00
LV UUID KBIoRf-RjpU-tJ1O-ZMdz-32ZT-iNnw-JE0YRE
LV Write Access read/write
LV Status available
# open 1
LV Size 73.41 GB
Current LE 2349
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:0

--- Logical volume ---
LV Name /dev/VolGroup00/LogVol01
VG Name VolGroup00
LV UUID dUGkAw-Z0PV-9ZF4-ao0w-N0GG-z6oL-LljKDt
LV Write Access read/write
LV Status available
# open 1
LV Size 992.00 MB
Current LE 31
Segments 1
Allocation inherit
Read ahead sectors 0
Block device 253:1

Last edited by onthetopo; 06-04-2007 at 03:56 PM..
 

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LVDISPLAY(8)						      System Manager's Manual						      LVDISPLAY(8)

NAME
lvdisplay - display attributes of a logical volume SYNOPSIS
lvdisplay [-a|--all] [-c|--colon] [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--maps] [--nosuffix] [-P|--partial] [--units hHbB- sSkKmMgGtTpPeE] [-v|--verbose] [--version] [LogicalVolumePath [LogicalVolumePath...]] lvdisplay --columns | -C [--aligned] [-a|--all] [-d|--debug] [-h|-?|--help] [--ignorelockingfailure] [--noheadings] [--nosuffix] [-o|--options [+]Field[,Field]] [-O|--sort [+|-]Key1[,[+|-]Key2[,...]]] [-P|--partial] [--segments] [--separator Separator] [--unbuffered] [--units hHbBsSkKmMgGtTpPeE] [-v|--verbose] [--version] [LogicalVolumePath [LogicalVolumePath...]] DESCRIPTION
lvdisplay allows you to see the attributes of a logical volume like size, read/write status, snapshot information etc. lvs (8) is an alternative that provides the same information in the style of ps (1). lvs is recommended over lvdisplay. OPTIONS
See lvm for common options and lvs for options given with --columns. --all Include information in the output about internal Logical Volumes that are components of normally-accessible Logical Volumes, such as mirrors, but which are not independently accessible (e.g. not mountable). For example, after creating a mirror using 'lvcreate -m1 --mirrorlog disk', this option will reveal three internal Logical Volumes, with suffixes mimage_0, mimage_1, and mlog. -c, --colon Generate colon separated output for easier parsing in scripts or programs. N.B. lvs (8) provides considerably more control over the output. The values are: * logical volume name * volume group name * logical volume access * logical volume status * internal logical volume number * open count of logical volume * logical volume size in sectors * current logical extents associated to logical volume * allocated logical extents of logical volume * allocation policy of logical volume * read ahead sectors of logical volume * major device number of logical volume * minor device number of logical volume -m, --maps Display the mapping of logical extents to physical volumes and physical extents. To map physical extents to logical extents use pvs --segments -o+lv_name,seg_start_pe,segtype. --columns | -C Display output in columns, the equivalent of lvs. Options listed are the same as options given in lvs (8). Examples "lvdisplay -v /dev/vg00/lvol2" shows attributes of that logical volume. If snapshot logical volumes have been created for this original logical volume, this command shows a list of all snapshot logical volumes and their status (active or inactive) as well. "lvdisplay /dev/vg00/snapshot" shows the attributes of this snapshot logical volume and also which original logical volume it is associated with. SEE ALSO
lvm(8), lvcreate(8), lvscan(8), pvs(8) Sistina Software UK LVM TOOLS 2.02.67(2) (2010-06-04) LVDISPLAY(8)
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