Setting up a LV
Create a new partition with type ‘Linux LVM (83)‘
$ fdisk -c /dev/vdb
Create a PV from the volume
$ pvcreate /dev/vdb1 $ vgcreate vg_my-poc-k3s_data /dev/vdb1 $ lvcreate -l 100%FREE -n lv_data vg_my-poc-k3s_data
Create a ext4 filesystem on the LV
$ mkfs.xfs /dev/mapper/vg_my--poc--k3s_data-lv_data $ mount /dev/mapper/vg_my--poc--k3s_data-lv_data /mnt/data/ # You could also add the following line to /etc/fstab /dev/mapper/vg_my--poc--k3s_data-lv_data /mnt/data xfs defaults 0 0 Listing
List logical volumes and the physical device they use
$ lvs -o +devices LV VG Attr LSize Pool Origin Data% Meta% Move Log Cpy%Sync Convert Devices lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 288 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 25504 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 21664 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 23424 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 9504 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 28416 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 10624 ) lv_local_images vg_my-host32_root -wi-ao---- 500.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 18784 ) lv_mdatp_var vg_my-host32_root -wi-ao---- 1.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 28384 ) lv_root vg_my-host32_root -wi-ao---- 4.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 160 ) lv_swap vg_my-host32_root -wi-ao---- 1.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 0 ) lv_my-elk31_data vg_my-host32_root -wi-ao---- 128.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 5408 ) lv_my-elk31_root vg_my-host32_root -wi-ao---- 10.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 5088 ) lv_my-test-mercator31_data vg_my-host32_root -wi-ao---- 100.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 15904 ) lv_my-test-mercator31_data vg_my-host32_root -wi-ao---- 100.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 25184 ) lv_my-test-mercator31_root vg_my-host32_root -wi-ao---- 10.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 24864 ) lv_var vg_my-host32_root -wi-ao---- 4.00g /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 ( 32 )
List physical volumes and the logical volumes that it uses
$ pvdisplay -m --- Physical volume --- PV Name /dev/mapper/luks-a8d23313-d6ec-436a-8a6b-08342d59b080 VG Name vg_my-host32_root PV Size 893.12 GiB / not usable 31.00 MiB Allocatable yes PE Size 32.00 MiB Total PE 28579 Free PE 4323 Allocated PE 24256 PV UUID m7Wk62-4O5D-GBvu-kb9b-I093-tars-zkwR2f
--- Physical Segments --- Physical extent 0 to 31: Logical volume /dev/vg_my-host32_root/lv_swap Logical extents 0 to 31 Physical extent 32 to 159: Logical volume /dev/vg_my-host32_root/lv_var Logical extents 0 to 127