**Note this KB is applicable for VCF versions below 4.5**
For 4.5 and above - adjust the step for the /data partition with the steps from the below kb - see section "For SDDC Manager 4.5 and 5.0, you can follow the below steps."
SDDC Manager Appliance pre-check failing as root partition /dev/sda4 left with not enough space
https://knowledge.broadcom.com/external/article?articleNumber=316101
Currently there is no resolution.
Workaround:
To workaround this issue, please follow the below steps:
1. Extend the /data partition by following these steps:
Power off the SDDC Manager VM and wait for a few moments until it's properly turned off.
Add a new disk to the VM as per below.
Turn on the SDDC Manager VM and wait for it to properly come back up.
2. Go to the SDDC Manager VM and run the following commands
echo "- - -" > /sys/class/scsi_host/host2/scan
lsblk
In your lsblk output you should see the new disk added.
In this example, I added a new disk with 16gb and it's denoted as sdg.
Also please note which disk your /data partition is located under. In this case mine is under sdc. As well as the path to the /data directory. In the screenshot mine is vg_data-lv_data1
3. Add the new disk
pvcreate /dev/sdg <---- Use the newly added disk
4. Extend the Volume Group with the New Disk
vgextend vg_data /dev/sdg <---- Use the newly added disk and VG
Extend the space using the path
5. lvextend -L+16G -r /dev/vg_data/lv_data1 . ← Might have to adjust the size to be less than 16G. Can specify what you want
6. You can verify with df -h that the /data directory now has grown in size.