Extending root disk of Cloud Director appliance

Products

• VMware Cloud Director

Issue/Introduction

Extending root disk of Cloud Director appliance

Environment

Cloud Director 10.x appliance

Cause

Need to expand the root partition of a Cloud Director appliance.

Resolution

Before beginning, take a backup of the Cloud Director appliance.  Note that there must not be any snapshots present for the appliance in order to expand the disk.

 

1. Resize Hard disk 1 in vCenter
2. SSH into the Cloud Director appliance
3. Rescan the SCSI bus for disk changes
   echo 1 > /sys/class/block/sda/device/rescan
   
   
4. Validate that OS sees the change
   root@cell [ ~ ]# fdisk -l
....
GPT PMBR size mismatch (83886079 != 94371839) will be corrected by write.
The backup GPT table is not on the end of the device. This problem will be corrected by write.
Disk /dev/sda: 45 GiB, 48318382080 bytes, 94371840 sectors  << New disk size
   
   
5. Install the parted package to resize the disk partition
   root@cell [ /etc/yum.repos.d ]#  tdnf install parted
Refreshing metadata for: 'VMware Photon Linux 3.0 (x86_64)'
Refreshing metadata for: 'VMware Photon Linux 3.0 (x86_64) Updates'
Refreshing metadata for: 'VMware Photon Extras 3.0 (x86_64)'
photon-extras                              123    100%
Installing:
parted          x86_64     3.2-9.ph3   photon-updates   1.12M 1170933

Total installed size:   1.12M 1170933
Is this ok [y/N]:
y
Downloading:
parted                                  423548    100%
Testing transaction
Running transaction
Installing/Updating: parted-3.2-9.ph3.x86_64

Complete!
root@cell [ /etc/yum.repos.d ]#
   
   
6. View the partitions.  Type Fix when prompted (Note that sizes of the partitions may vary from this example).
   # parted /dev/sda
GNU Parted 3.2
Using /dev/sda
Welcome to GNU Parted! Type 'help' to view a list of commands.

(parted) print
print
Warning: Not all of the space available to /dev/sda appears to be used, you can
fix the GPT to use all of the space (an extra 10485760 blocks) or continue with
the current setting?

Fix/Ignore? Fix   <<
Fix
Model: VMware Virtual disk (scsi)
Disk /dev/sda: 48.3GB
Sector size (logical/physical): 512B/512B
Partition Table: gpt
Disk Flags:

Number  Start   End     Size    File system     Name  Flags
 1      1049kB  3146kB  2097kB                        bios_grub
 2      3146kB  137MB   134MB   ext3
 4      137MB   272MB   134MB   linux-swap(v1)
 3      272MB   42.9GB  42.7GB  ext3
   
   
7. Resize partition and quit (root partition on Cloud Director appliance is 3)
   (parted) resizepart 3
resizepart 3
Warning: Partition /dev/sda3 is being used. Are you sure you want to continue?
(YES/no) yes
(42.9GB) 100%
(parted) quit
   
   
8. Resize filesystem
   root@cell [ /etc/yum.repos.d ]# resize2fs /dev/sda3
resize2fs 1.45.5 (07-Jan-2020)
Filesystem at /dev/sda3 is mounted on /; on-line resizing required
old_desc_blocks = 5, new_desc_blocks = 6
The filesystem on /dev/sda3 is now 11730171 (4k) blocks long.
   
   
9. See the updated size
   root@cell [ /etc/yum.repos.d ]# df -l /
Filesystem     1K-blocks     Used Available Use% Mounted on
/dev/sda3       45922128 13317084  30295188  31% /