lvm move lv to different pv - pvmove vs vgsplit : 2024-11-01 lvm move lv to different pv Below steps are validated on Red Hat Enterprise Linux 7. Also in the end of the article a quick example to migrate all my logical volumes to new partition (disk) LVM . lvm move lv to different
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lvm move lv to different pv I have three logical volumes in a single volume group using a single physical volume (the whole existing disk /dev/sda). I now want to move one of those logical .As of the LVM in Debian stretch (9.0), namely 2.02.168-2, it's possible to do a copy of a logical volume across volume groups using a combination of vgmerge, lvconvert, and . Migrating Logical Volume is one of the coolest and safest ways to replace a disk by moving the extents from one PV to another PV. In today’s guide let see how to perform a logical volume migration from one . I have not provided examples of LVM arguments that will be different for you: VG, LV, PV, block devices. Read the documentation for usage details. # Old host in .lvm move lv to different pv pvmove vs vgsplit As of the LVM in Debian stretch (9.0), namely 2.02.168-2, it's possible to do a copy of a logical volume across volume groups using a combination of vgmerge, .
A logical volume is a virtual, block storage device that a file system, database, or application can use. To create an LVM logical volume, the physical volumes (PVs) are combined . Features of Migration. Moving logical volumes from one disk to other disk. We can use any type of disk like SATA, SSD, SAS, SAN storage iSCSI or FC. Migrate disks without data loss and downtime. In . Hi guys, I need some assistance moving a LV. I have a VG with two PV; on the second PV there is only one LV so I want to move it to the first PV (hdisk1) in order to get rid of the second one (hdisk2) Something like (pseudocode):Move the logical volume away from each drive. (pvmove ) (You'll need to do this one disk at a time.) Remove the disk. (vgreduce then pvremove) (Optional) If you made the logical volume larger than the filesystem in step 2, expand the filesystem to use the entire logical volume, so that no space is wasted. (resize2fs)More than one pvmove can run concurrently if they are moving data from different source PVs, but additional pvmoves will ignore any LVs already in the process of being changed, so some data might not get moved. USAGE Move PV extents. pvmove PV [ -A|--autobackup y|n] [ -n|--name LV] [ --alloc . LVM metadata. Backups of metadata in /etc/lvm/backup/ and /etc/lvm/archive/ are text files, logging all sorts of useful things: device WWN, PV name and ID, LV name ID and extent map, VG name and ID. Archive this, perhaps all of /etc, as a part of a host level backup of the old instance. However LVM operates from on-disk metadata.How can we migrate SAN LUNS from one storage array to another with LVM 'pvmode' command. It must be ensured that the server-side configuration of VG or LV is note changed. Skip to primary navigation; Skip to main content; Skip to primary sidebar . Begin the migration from the /dev/mapper/mpathX PV to the new /dev/mapper/mpathY PVTo turn the LV into an image file and use SCP to move it. Then use DD to copy the file back to a new LV on the new host. The problem with this method is you need twice as much disk space as the VM takes on both machines. ie. a 5GB LV uses 5GB of space for the LV and the dd copy also uses an additional 5GB of space for the image.
lvm move lv to different pv MyData -> 5TB LV According to lsblk -f, the MyData LV is on both /dev/sdb and /dev/sdc. Basically this system started with one drive and I added more. I also started with a small LV and used lvextend/lvresize to make it bigger. What I want to do is move the entirety of MyData to /dev/sda. Looking at the docs for pvmove, I see that I can do:
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lvm move lv to different pv