We have 1.2 tb DB. every day full back and every half hour log backup was configured. Today full backup got failed. Generaly full backup was taking more than 4 hrs. So we planned to configured Diffrential backup instead of full backup and every week -full backup and as usual log backup for every 1/2 hr.
When i executed the compressed diffrential backup. Using query i got to know that its taking more than 17 hrs to complete the backup. So after 2 hrs we stopped the differential backup.
As todays full backup was not their we started the full backup then using the query i got to know that same like previous it was showing 4hr time to complete fulll backup..
What could be the reason differential backup was taking more than 17hrs.
when i stopped and executed the full backup asusua its taking 4 hrs time. what is the reason for long time ?
Anything mistake i am doing?
Until i started diffrential backups We have succeeded fullbackups in drive.
Todays fullbackup got failured due to some issue but later on i started diff which was taking lot of time. So i stopped this also..
Please help what causing differentail long time. After differential stopping if i run the fullbackup again its taking normal 4 hrs time?
Thanks in advance.