Jedenaste_21
0 21 flashcards michalesq
Question  |
Answer |
|||
|---|---|---|---|---|
|
Command to show all atteched storages to the system?
|
blkid
|
|||
|
Command to display all physical volumes?
|
pvdisplay
|
|||
|
Command to display all volume groups?
|
vgdisplay
|
|||
|
Command to display all logical volumes?
|
lvdisplay
|
|||
|
Command to make filesystem for logical volume
|
mksf /dev/vgname/lvname
|
|||
|
How to create physical volume for LVM?
|
pvcreate /dev/xvdf1 /dev/xvdf2
|
|||
|
How to creage virtual group for LVM?
|
vgcreate <vgname> /dev/xvdf1 /dev/xvdf2
|
|||
|
How to create logical volume for LVM?
|
lvcreate -n <lvname> -L 10G vgname
|
|||
|
How to Remove logical volume?
|
lvremove /dev/volume_name/volume_name_manager
|
|||
|
How to Remove volume groups?
|
vgremove <volume_group>
|
|||
|
How to Remove physical volumes?
|
pvremove /dev/xvdf1
|
|||
|
Extending volume group battlestar by adding new device
|
vgextend battlestar /dev/xvdj
|
|||
|
How to extend a logical volume after adding new disks to virtual group for LVM?
|
lvextend -L +20G /dev/vgname/lvname
|
|||
|
Command for the operating system and file system to recognize the increase in size on the device?
|
xfs_growfs /mnt/mydir
|
|||
|
How to add label for the partition with xfs filesystem?
|
xfs_admin -L <label name> /dev/xvdf1
|
|||
|
How to add label for the partition with ext4 filesystem?
|
tune2fs (or e2label) -L <label name> /dev/xvdf2
|
|||
|
Create persistent mounts for the system - with UUID?
|
1) blkid to get UUID, 2) add UUID=<UUID> /mnt/mount1 xfs default 1 2 to /etc/fstab
|
|||
|
Create persistent mounts for the system - with label?
|
1) blkid to get UUID, 2) LABEL=<label name> /mnt/mount2 ext4 defaults 1 2
|
|||
|
How to display how much physical space left?
|
free -m
|
|||
|
Creating swap space with LVM
|
1) create partition with LVM type, 2) create pv, vg, lv, 3) mkswap /dev/vgname/swap(lvname)
|
|||
|
How to enable swap space?
|
swapon /dev/volume_name/swap
|
|||
