During upgrade from ATP 3.0.5 to 3.1.0, the ATP UI does not seem to raise in a reasonable amount of time.
During the operation to migrate elasticsearch database from version 1.x to version 6.x, the target partition for backing up the elasticsearch database was busy, resulting in ATP failure to complete data backup for migration of elasticsearch. This failure in turn halted the upgrade from 3.0.5 to 3.1.0 as a whole.
ATP management server or ATP AllInOne
cat /var/log/symantec/sgs-td/update.log | grep -A 7 -B 7 "backing up ES 1.x data folders"
[Timestamp] backing up ES 1.x data folders
Starting backup umount: /var/backup: target is busy.
(In some cases useful info about processes that use
the device is found by lsof(8) or fuser(1))
Error: 5, Failed to create physical volume on device /dev/sda2
Error: 5, Failed to add backup partition to LVM
Failed to backup with code 5