DevOps: October 2022

Saturday, 8 October 2022

1. vgextend - This is used to increase space of volume group

   vgextend < vg name > < pv name>

2. lvextend - This is used to increase space of logical volume

   lvextend -L < Exact size or Append Size > < Path of lv >

  NOTE :- You can't Give small value of Size and Give value in minus

3.lvreduce - This is used to Decrease space of logical volume

   lvreduce -L < size > < Path of lv>

4. lvresize - This is used to Decrease , Increase  space of logical volume. You Can set Exact Space of a lv too.

   resize -L < size > < Path of lv > 

5. ( -r ) - It is Used to Adapt FileSystem of its VG

6. resize2fs (ext4) - To Make FileSystem .

   resize2fs < lv path >

7. xfs_growfs - For XFS File System

   xfs_growfs < mountpoint >

1. vgcreate - To set Physical Extend while Creating VG

  vgcreate -s < size in MB > < name of vg > < pv's name >

2. vgremove - To Remove a Particular VG

  vgremove < vg's name >

3. vgrename - To set a new name of a particular vg

  vgrename < vg's old name > < new name >

4. lvcreate (Logical Volume) - To Create Logical Volume

    lvcreate -L < size > -n < name of lv > < vg name>

5. lvs - This Show all Logical Volumes

6. lvremove- Use to Remove or delete Logical Volume

   lvremove < Path of LV >

7. pvremove- Use to Remove or delete Physical Volume

   pvremove < Path of Physical Volume >

8. lvdisplay - Show all Logical Volume

   lvdisplay < lv name or leave it Blank >

LVM

1. pv ( Physical Volume) - To Create Physical Volume

 pvcreate <partition name> <partition name>

2. pvs - This Show all pv's occupied space & free space

pvs

3. pvdisplay - This Display's all Information related to pv

   pvdisplay <partition name>

   pvdisplay- to show all pv's information

4. vg ( Volume Group ) - To Create Volume Group

   vgcreate < vgname > < pv's name>

   vgcreate -s < size > 

5 . PE - Physical Extend

6. vgs ( Volume groups ) - This Shows all Volume Groups