Thanks for the suggestion. I did try but got this:
[root@localhost:/dev/disks] vmkfstools --growfs "/vmfs/devices/disks/naa.6a4badb021e1ae001eea2a790847ba7d:3" "/vmfs/devices/disks/naa.6a4badb021e1ae001eea2a790847ba7d:3"
Underlying device has no free space
Error: No space left on device
I tried try a few other commands to check the actual size of the partition table:
[root@localhost:~] partedUtil getptbl /dev/disks/naa.6a4badb021e1ae001eea2a790847ba7d
gpt
109214 255 63 1754529792
1 64 8191 C12A7328F81F11D2BA4B00A0C93EC93B systemPartition 128
5 8224 520191 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0
6 520224 1032191 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0
7 1032224 1257471 9D27538040AD11DBBF97000C2911D1B8 vmkDiagnostic 0
8 1257504 1843199 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0
9 1843200 7086079 9D27538040AD11DBBF97000C2911D1B8 vmkDiagnostic 0
2 7086080 15472639 EBD0A0A2B9E5443387C068B6B72699C7 linuxNative 0
3 15472640 1169686494 AA31E02A400F11DB9590000C2911D1B8 vmfs 0
[root@localhost:~] partedUtil get /dev/disks/naa.6a4badb021e1ae001eea2a790847ba7d:3
71846 255 63 1154213855
[root@localhost:/dev/disks] partedUtil getUsableSectors /dev/disks/naa.6a4badb021e1ae001eea2a790847ba7d
34 1754529758
From the web client, I can see and add the extra space to expand VMFS (partition 3). But then the task would fail if I proceed.