📕 Node [[expanding volumes on centos]]

📄 Expanding Volumes on CentOS.md by @bbchase

[[CentOS]] [[LVM]]
Summary:
- df -h
  - find the volume that needs expanding
    - /dev/mapper/Volume00-mailman_lv
    - 94G 89G 564M 100% /mailman
- lvdisplay
  - find the real name
    - —- Logical volume
    - PV Name /dev/sdc1
    - VG Name Volume00
    - PV Size 30.00 GB / not usable 1.97 MB
    - Allocatable yes
    - PE Size (KByte) 4096
    - Total PE 7679
    - Free PE 242
    - Allocated PE 7437
    - PV UUID 7Hxg1t-954M-8Zvi-Hq2T-Y3qB-AQ7N-yBDZcr
- fdisk /dev/sdb
  - p (print partition table)
    - Disk /dev/sdb: 164.1 GB, 164120100864 bytes
    - 255 heads, 14 sectors/track, 89789 cylinders
    - Units = cylinders of 3570 * 512 = 1827840 bytes
    - Device Boot Start End Blocks Id System
    - /dev/sdb1 1 89789 160272384 8e Linux LVM
  - n (create new partition)
    - p (primary)
    - Partition number (1-4)
    - First cylinder (1+previous partition’d end cylinder)
    - Last cylinder (can specify size (+20G) or # of cylinders (+))
  - t (set partition type)
    - Select partition number
    - Hex code (8e for Linux LVM)
  - w (write)
- Reboot
- pvcreate /dev/sda3 (The partition # you just created)
- vgextend Volume00 /dev/sda3
- lvextend -L+2G /dev/Volume00/LogVol06
- resize2fs /dev/Volume00/LogVol06

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