Increasing (The Wrong) VMware vCenter Server Appliance 6.0 VMDK

I encountered a Health Message for my VCSA Build Number 5326079.2017-04-26_22-03-40

This led me to Increasing the disk space for the VMware vCenter Server Appliance in vSphere 6.0 (2126276) | VMware KB

However, in the process, I noticed a more serious issue with /storage/log (/dev/mapper/log_vg-log). It was at 98% capacity.2017-04-27_0-29-50

According to the KB article and other reliable sources, I needed to increase VMDK5 to resolve the immediate issue with /storage/log. So, I right clicked the vCenter VM, selected “Edit Settings,” clicked “Manage other disks” (on the Virtual Hardware tab), and increased Hard disk 5 from 10GB to 15GB.

Here is the original configuration:2017-04-27_0-36-04

…and here is how it looked after modification (the sizes were grayed out at the time because vCenter was being backed up by a program that utilizes snapshots and you cannot alter disk size when snapshots are present). Anyway, you will see that Hard disk 5 went from 10 to 15 GB.:2017-04-27_0-39-06

Here is the SSH/Shell before and after:2017-04-27_0-41-20

The Wrong Trousers

Notice something unexpected? Apparently, for my implementation, Disk 5 correlates to /storage/db and NOT /storage/log. In fact, based on this result, it appears that Disk 6 is the one that needs to be grown. Again, that does NOT correlate to other documentation as Disk 6 is referenced as /storage/db in those places.

On a whim and a prayer, I repeated the process for Disk 6, hoping to grow the /storage/log VMDK. Disk 6 was initially 10GB. I changed it to 20GB. Annnnd, bingo:2017-04-27_0-15-54