LVM basic

LVM

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

 
0 (0)
Article Rating (No Votes)
Rate this article
Attachments
There are no attachments for this article.
Comments
There are no comments for this article. Be the first to post a comment.
Full Name
Email Address
Security Code Security Code
Related Articles RSS Feed
VMWare tools free
Viewed 1638 times since Mon, Jul 16, 2018
CONFIGURE FOR ASM Linux
Viewed 732 times since Sat, Jun 2, 2018
Linux – How to check the exit status of several piped commands
Viewed 1151 times since Wed, Jul 25, 2018
12 Tcpdump Commands – A Network Sniffer Tool
Viewed 542 times since Fri, Jul 27, 2018
RHEL: How to rebuild and/or patch a RPM package
Viewed 948 times since Sat, Jun 2, 2018
RHCS6: Basic operations on clustered services
Viewed 689 times since Sun, Jun 3, 2018
Linux Network (TCP) Performance Tuning with Sysctl
Viewed 2573 times since Fri, Aug 3, 2018
RHEL: Crash kernel dumps configuration and analysis on RHEL 5
Viewed 1157 times since Sat, Jun 2, 2018
Set Up SSH Tunneling on a Linux / Unix / BSD Server To Bypass NAT
Viewed 86 times since Fri, May 15, 2020
10 nmap Commands Every Sysadmin Should Know
Viewed 570 times since Wed, May 22, 2019