CCI Virtualization - Managing filesystems on a Linux VM

The default CCI Virtualization Linux VM has 40 GB of virtual disk space. While it is configured to use Logical Volume Management (LVM) and xfs filesystems, ~28 GB of virtual disk is not allocated to any filesystem.

Instructions for managing LVM, including adding space to an existing filesystem can be found below:
Below is an example of how to grow /home from 2 GB to 5 GB in size:
1. View mounted filesystems and their sizes:
[root@CCI-00001 ~]# df -hT
Filesystem                         Type      Size  Used Avail Use% Mounted on
/dev/mapper/Volume00-root          xfs       4.9G  1.1G  3.9G  21% /
devtmpfs                           devtmpfs  1.9G     0  1.9G   0% /dev
tmpfs                              tmpfs     1.9G     0  1.9G   0% /dev/shm
tmpfs                              tmpfs     1.9G  8.5M  1.9G   1% /run
tmpfs                              tmpfs     1.9G     0  1.9G   0% /sys/fs/cgroup
/dev/mapper/Volume00-var           xfs       2.0G  134M  1.9G   7% /var
/dev/mapper/Volume00-home          xfs       2.0G   33M  2.0G   2% /home
/dev/mapper/Volume00-tmp           xfs       997M   33M  965M   4% /tmp
/dev/sda1                          xfs       497M  150M  347M  31% /boot
/dev/mapper/Volume00-var_log       xfs       997M   33M  964M   4% /var/log
/dev/mapper/Volume00-var_log_audit xfs       997M   33M  965M   4% /var/log/audit
2. View unallocated virtual disk:
[root@CCI-00001 ~]# /sbin/vgdisplay 
  --- Volume group ---
  VG Name               Volume00
  System ID             
  Format                lvm2
  Metadata Areas        2
  Metadata Sequence No  30
  VG Access             read/write
  VG Status             resizable
  MAX LV                0
  Cur LV                6
  Open LV               6
  Max PV                0
  Cur PV                2
  Act PV                2
  VG Size               39.50 GiB
  PE Size               4.00 MiB
  Total PE              10113
  Alloc PE / Size       3000 / 11.72 GiB
  Free  PE / Size       7113 / 27.79 GiB
  VG UUID               Sn0ned-Ktau-vnBL-trz7-ILiD-DOuQ-Ff0h4f
3. View the size of /home:
[root@CCI-00001 ~]# df -h /home
Filesystem                 Size  Used Avail Use% Mounted on
/dev/mapper/Volume00-home  2.0G   33M  2.0G   2% /home
4. Add 3 GB of space to /dev/mapper/Volume00-home, the logical volume on which /home resides:
[root@CCI-00001 ~]# /sbin/lvextend --size +3G -r /dev/mapper/Volume00-home
Size of logical volume Volume00/home changed from 1.95 GiB (500 extents) to 4.95 GiB (1268 extents).
  Logical volume home successfully resized
  meta-data=/dev/mapper/Volume00-home isize=256    agcount=4, agsize=128000 blks         =                       sectsz=512   attr=2, projid32bit=1         =                       crc=0        finobt=0data     =                       bsize=4096   blocks=512000, imaxpct=25         =                       sunit=0      swidth=0 blksnaming   =version 2              bsize=4096   ascii-ci=0 ftype=0log      =internal               bsize=4096   blocks=2560, version=2         =                       sectsz=512   sunit=0 blks, lazy-count=1realtime =none                   extsz=4096   blocks=0, rtextents=0data blocks changed from 512000 to 1298432
5. Verify that /home has grown by 3 GB (from 2 GB to 5 GB):
[root@CCI-00001 ~]# df -h /home
Filesystem                 Size  Used Avail Use% Mounted on
/dev/mapper/Volume00-home  5.0G   33M  5.0G   1% /home

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Keywords:cci, cciv, cloud, private, virtualization, centos xfs lvm logical volume management filesystem disk allocated fs, linux, ubuntu   Doc ID:57797
Owner:Drew D.Group:Campus Cloud Infrastructure (CCI) - Private Cloud
Created:2015-10-27 15:04 CDTUpdated:2023-03-22 09:56 CDT
Sites:Campus Cloud Infrastructure (CCI) - Private Cloud
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