ESX boot paritions low on space after 6.7 Upgrade

Hi,

I tried the 6.5 to 6.7 U2 upgrade using ESX image and update manager.  successfully work ok with disk space alerts for low disk space.  These were alerting on the two 250GB I believe to be the boot blank partitions.

So rebuilt the ESX host fresh and still getting the same errors.

df -h command output attached.