How to mirror an existing LVM to a new drive?

How to mirror an existing LVM to a new drive?

To mirror an existing lv on a new drive using lvm2: install the new drive and create lvm2 partition(s) (at least the same size as your existing drive’s lvm partition(s), or those you want to mirror in any case) (use parted /dev/newdrive or use sfdisk -d /dev/sda | sfdisk /dev/sdb assuming sdb is your new drive)

How to create a mirror from logical volume datalv?

Logical volume DataLV converted. Note: The lvconvert command can take a considerable amount of time depending on how big a mirror is to be created. Go grab a beer or read some more articles on TCPDump while you wait, but do not break out of the process.

How to create a drive mirror in Ubuntu?

Assuming you just installed a system and used the default Ubuntu setup, you have one virtual group on /dev/sda5 that looks like this (drive sizes will vary though.) Here we see that the name of the virtual group is “isabelle”. You can also use the following commands to list the physical devices, the logical devices, and the groups:

How to add new hard drive to existing LVM drive?

In particular, I followed these steps: Turn computer off and install two hard drives with the smaller one being at least the size of the raid array (possibly including the original hard drive) Boot into install disk and run the installer. Using manual partitioning, make a partition in each hard drive for each partition in the final file system.

Why is my LVM data not showing up?

If the devices itself is not showing, examine physical connections to the device. If the device is showing, investigate whether there was corruption on the device causing LVM data to be unreadable. Reach our to Red Hat Support for assistance as needed:

Why is the LVM root filesystem not found?

As a result, when the initial ramdisk scans for devices, it rejects the device that contains the root filesystem. Then, when the ramdisk goes on to look for LVM metadata and the root filesystem, it is not found in the remaining devices.

How to check if the LVM filter is an issue?

To determine if the LVM filter may be an issue, run you can take additional steps to investigate from the dracut shell: 1. Interrupt the GRUB boot process and edit the kernel command line as follows: The rdshell will drop to the dracut shell if there are problems with the initial ramdisk.