How do I remove logical volume?

To remove an inactive logical volume, use the lvremove command. If the logical volume is currently mounted, unmount the volume before removing it. In addition, in a clustered environment you must deactivate a logical volume before it can be removed.

How do I close a logical volume in AIX?

Select the name of the logical volume you want to remove. Go to the Remove Mount Point field and toggle to your preference. If you select yes, the underlying command will also remove the mount point (directory) where the file system is mounted (if any, and if that directory is empty).

How do you remove volume from volume group?

To remove unused physical volumes from a volume group, use the vgreduce command. The vgreduce command shrinks a volume group’s capacity by removing one or more empty physical volumes. This frees those physical volumes to be used in different volume groups or to be removed from the system.

How do I remove physical volume?

To remove any physical volume in a volume group vgreduce command can be used. The vgreduce command shrinks the volume group by removing one or more PVs. We can then either use these free PVS in another VG or remove them from the LVM configuration.

How do you create a logical volume?

To create a logical volume, use the lvcreate command. You can create linear volumes, striped volumes, and mirrored volumes, as described in the following subsections. If you do not specify a name for the logical volume, the default name lvol# is used where # is the internal number of the logical volume.

What can the logical volume Manager LVM be used for?

LVM is used for the following purposes: Creating single logical volumes of multiple physical volumes or entire hard disks (somewhat similar to RAID 0, but more similar to JBOD), allowing for dynamic volume resizing.

How do I create a logical volume in AIX?

After you create a volume group, you can create logical volumes within that volume group….Creating a new log logical volume:

  1. mklv -t jfs2log -y lvname vgname 1 pvname <– creates the log lv.
  2. logform -V jfs2 /dev/lvname.
  3. chfs -a log=/dev/lvname /fsname <–changes the log lv (it can be checked in /etc/filesystems)

How do I create a group volume in AIX?

Creating a Volume Group

  1. Create a Volume Group.
  2. Create a Logical Volume within the VG containing a JFS2 filesystem that will be automatically mounted during boot.
  3. Add a disk to the VG and mirror the data across 2 disks.
  4. Display LP>PP mappig and LVCB.

How do I shrink my LVM volume?

How to Shrink an LVM Volume Safely on Linux

  1. Step 1: First take a full backup of your filesystem.
  2. Step 2:Start and force a filesystem check.
  3. Step 3:Resize your filesystem before resize your Logical Volume.
  4. Step 4: Reduce LVM size.
  5. Step 5: Re-run resize2fs.

How do I remove a volume group in Linux?

To remove a volume group that contains no logical volumes, use the vgremove command.

How do I get rid of unknown PV?

To fix the error ” pvs shows unknown device ” and ” pvs couldnt find device with uuid ” execute vgreduce with –removemissing directive. From the man page: Removes all missing PVs from the VG, if there are no LVs allocated on them.

How do you create a logical volume inside a volume group?

Procedure

  1. Create a LVM VG, if you do not have an existing one: Log into the RHEL KVM hypervisor host as root. Add a new LVM partition using the fdisk command.
  2. Create a LVM LV on the VG. For example, to create an LV called kvmVM under the /dev/VolGroup00 VG, run:
  3. Repeat the above VG and LV steps on each hypervisor host.

How to disable or delete logical volume in Linux?

4. Delete Logical Volume using lvremove command After disabling the volume you can now delete logical volume by using lvremove command as shown below. Check Logical Volume Status again by running lvscan command. From the below output, you can check that log_grp1 does not exist now.

How to remove physical volumes from a volume group?

If a logical volume contains a physical volume that fails, you cannot use that logical volume. To remove missing physical volumes from a volume group, you can use the –removemissing parameter of the vgreduce command, if there are no logical volumes that are allocated on the missing physical volumes.

How to remove a logical volume in Red Hat?

Removing Logical Volumes. To remove an inactive logical volume, use the lvremove command. If the logical volume is currently mounted, unmount the volume before removing it. In addition, in a clustered environment you must deactivate a logical volume before it can be removed.

How to find missing disks in Aix LVM-IBM?

1a. Try running: which should force the volume group to go out and probe all physical volumes belonging to it. 1b. If varyonvg does not go out and find the disk, we may have to force it into an available state so LVM will check it. To do this use: It’s possible after this you may need to try the varyonvg again. 2.

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