среда, 22 февраля 2017 г.

Recovering after loss of a physical volume with LVM2 on Linux

Recently I have lost a hard drive which contained a physical volume of LVM2.

It contained an insignificant file system with scratch data and a part of a RAID1 logical volume.

To recover, it was necessary to repair the RAID1 LV and remove other partial LV. I was surprised that the network lacked information on how to repair a RAID1 LV.

So here are the commands:

lvconvert --repair /dev/mapper/VG-LVraid1
lvremove /dev/mapper/VG-LVpartial
vgreduce --removemissing VG

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