LVM basic
SCAN a new disk
ls -l /sys/class/scsi_host/
grep mpt /sys/class/scsi_host/host?/proc_name
fdisk -l
echo "- - -" > /sys/class/scsi_host/host2/scan
OVERVIEW OF DISKS and PARTITIONS
lsblk
Summary of Volume Groups
vgs (Volume Group Status)
Summary of Logical Volumes
lvs (Logical Volume Status)
Volume Group
|
Logical Volume
|
vgdisplay
vgdisplay vg_gsp_1 |
lvdisplay
lvdisplay vg_gsp_1
|
vgextend vg_gsp_1 /dev/sdc1
vgreduce vg_gsp_1 /dev/sdc1
|
lvextend /dev/vg_gg1/lv_root /dev/sdc1
lvextend --size +2G /dev/vg_gsp_1/lv_gpdisk_1
lvreduce /dev/vg_gg1/lv_root /dev/sdc1
|
vgcreate vg_gsp_1 /dev/sdb1
|
lvcreate -L 6G -n lv_gpdisk_2 vg_gsp_1
lvcreate -n lv_gpdisk_2 -l 100%FREE vg_gsp_1
lvremove /dev/vg_gsp_1/lv_gspvol_001
|
| |
mkfs -t ext4 /dev/vg_gsp_1/lv_gpdisk_1
mkfs.xfs /dev/vg_gsp_1/lv_gpdisk_1
resize2fs /dev/vg_gg1/lv_root
|
SHRINK VOLUME
umount /gspmount1
resize2fs -p /dev/vg_gsp_1/lv_gspvol_001 1G
e2fsck -f /dev/vg_gsp_1/lv_gspvol_001
resize2fs -p /dev/vg_gsp_1/lv_gspvol_001 1G
lvreduce -L 1G /dev/vg_gsp_1/lv_gspvol_001
mount /dev/vg_gsp_1/lv_gspvol_001 /gspmount1
INCREASE ROOT
vgdisplay vg_rhce
lvdisplay vg_rhce
vgextend vg_rhce /dev/sdc1
lvextend /dev/vg_rhce/lv_root /dev/sdc1
lsblk
df -h
resize2fs /dev/vg_gg1/lv_root or xfs_growfs /dev/vg_gg1/lv_root
df -h
|
Article Number: 154
Posted: Sat, Jun 2, 2018 9:38 PM
Last Updated: Sat, Jun 2, 2018 9:38 PM
Online URL: http://kb.ictbanking.net/article.php?id=154