Differences

This shows you the differences between two versions of the page.

--- lvm [2011/03/07 11:02] – [FDISK] paulsmith
+++ lvm [2020/03/08 22:59] (current) – paulsmith
@@ Line 1: / Line 1: @@
+====== LVM2 ======
+===== FDISK =====
+if you are not doing a raid:
+  create partition with type 8e
+===== Create a volume group =====
+  vgscan
+  vgchange -a y
+  pvcreate /dev/md1
+  vgcreate vx /dev/md1
+===== Unmount a volume group =====
+  vgchange -a n vx
+===== Display volume group =====
+  vgdisplay vx
+===== Display Logical Volume =====
+  lvdisplay /dev/vx/samba
+===== Create new virtual =====
+  lvcreate -L20G  -nusr            vx
+  lvcreate -L10G  -nvar            vx
+  lvcreate -L5G   -nopt            vx
+  lvcreate -L20G  -nhome           vx
+  lvcreate -L5G   -ntmp            vx
+  lvcreate -L10G  -nwww            vx
+  lvcreate -L20G  -nmail           vx
+  lvcreate -L5G   -nportage        vx
+  lvcreate -L10G  -ndistfiles      vx
+  lvcreate -L20G  -ndistfilescache vx
+  lvcreate -L50G  -nsamba          vx
+  lvcreate -L10G  -nsrc            vx
+  lvcreate -L50G  -nbackup         vx
+  lvcreate -L50G  -ntrash          vx
+  lvcreate -L100G -nvmware         vx
+  lvcreate -L300G -nvideo          vx
+  lvcreate -L50G  -ntorrent        vx
+mkfs.ext4 /dev/vx/trash
+===== Rename virtual =====
+  lvrename vx src dst
+===== Resize virtual =====
+  lvextend -L +xxG /dev/vx/samba
+  resize_reiserfs -f /dev/vx/samba
+===== Resize virtual - ext4 =====
+  umount /dev/vg/somename
+  e2fsck -f /dev/vg/somename
+  resize2fs /dev/vg/somename 29G  (Just less than the actual size)
+  e2fsck -f /dev/vg/somename
+  lvextend -L +50G /dev/vg/somename
+  resize2fs /dev/vg/somename
+  fsck -n /dev/vg/somename
+  e2fsck -f /dev/vg/somename
+===== Ext3 Resize =====
+  umount /dev/vx/home
+  "not needed now" tune2fs -O ^has_journal /dev/vx/home
+  e2fsck -f /dev/vx/home
+  resize2fs /dev/vx/home 49G
+  lvresize -L 50G /dev/vx/home
+  resize2fs /dev/vx/home
+  fsck -n /dev/vx/home
+  "not needed now" tune2fs -j /dev/vx/home
+===== Remove a virtual =====
+  lvremove /dev/vx/samba
+===== Force a cache rebuild if not all of the vg groups appear =====
+ pvscan --cache