I have an elementary question. I just started as a DBA with no administration experience and upon reviewing the Backup schedule, I noticed on one instance that the maintenance plan that performs the backups is set up with 4 steps. The first and last steps are maintenance, but the second and third are to take Full backups (2nd step) and then take T-log backups (step 3) of all user DB's.
The job that calls the maintenance plan is run at 6AM and 4PM. I am confused why they would take the FULL backups first and then T-log backups directly after the FULL? It would make sense to me if it was the other way around. This is how it makes sense to me at least:
->at 610am, FULL backup completes
->at 4PM, take t-log backup to backup the t-log since 6AM
->at 410PM, take FULL backup
->at 6AM, take t-log backup for data since yesterdays 410PM FULL backup
->at 610AM, Take full backup
Can anyone think of a good reason for taking a FULL and then a t-log directly after? I tried asking the employees that have been here but they are clueless.