Windows Backup Tool
I am using Windows Backup Tool that comes with Windows 2003 Server to do a full backup on Saturday and then a Differential backup from Monday to Friday.
Now I would like to perform a restore for Wednesday's folders.
How do I perform this restore? Do I first restore the Full backup done on Saturday and then restore the Differential done on Wednesday? OR do I select the Wednesday's Differential and it will automatically request for Saturday's Full backup.
Secondly, I also noticed that some folders if not most folders are empty for the Differential Backups done on Wednesday and other days. Why is this?
Now I would like to perform a restore for Wednesday's folders.
How do I perform this restore? Do I first restore the Full backup done on Saturday and then restore the Differential done on Wednesday? OR do I select the Wednesday's Differential and it will automatically request for Saturday's Full backup.
Secondly, I also noticed that some folders if not most folders are empty for the Differential Backups done on Wednesday and other days. Why is this?
Restore first from saturday´s backup and then, wednesday. Differential backups only copy files new or change since last complete backup. Most folders are empty because files has no changes since last complete backup (saturday).
ASKER
chakko & drashiel....for softwares like Symantec Backup Exec and Veritas Backup and Data Protector....if you do a full backup and a differential backup. Assuming you want to do a restore. which do you select first. Do you select the differential backup for a particular day, and the software then requests for the full backup tape to be restored first?
Drashiel....so for the Windows Backup tool...I need to first restore the Full backup on Saturday and then the Differential for Wednesday. Other sofwares are different? You select the differential backup and you're asked to restore the the full backup first? Am I correct?
Drashiel....so for the Windows Backup tool...I need to first restore the Full backup on Saturday and then the Differential for Wednesday. Other sofwares are different? You select the differential backup and you're asked to restore the the full backup first? Am I correct?
SOLUTION
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ASKER
chakko, i'm sorry but am rather confused....
on Symantec Backup Exec 12, when I tried to restore the Full Backup for a certain folder. After that was done, I was not asked to restore the differential.
Was I to select, say Wednesday's Differential for the restore, and then I'm prompted to insert the full backup tape first and that tapes place, and then Wednesday's differential runs???
on Symantec Backup Exec 12, when I tried to restore the Full Backup for a certain folder. After that was done, I was not asked to restore the differential.
Was I to select, say Wednesday's Differential for the restore, and then I'm prompted to insert the full backup tape first and that tapes place, and then Wednesday's differential runs???
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ASKER
Hi Chakko:
For your CASE 1: You stated that you couldn't find Document2 in Tuesday's differential, so it means it wasn't changed since the full backup. What happens if it was changed on Monday and backed up on Monday at 10pm? You mentioned you see it wasn't changed on Tuesday and went straight for the Full backup. What about Monday?
CASE 2: You find the file in Tuesday's Differential - How do you restore it? Do you run the restore the full backup first and then Tuesday's differential? correct?
For your CASE 1: You stated that you couldn't find Document2 in Tuesday's differential, so it means it wasn't changed since the full backup. What happens if it was changed on Monday and backed up on Monday at 10pm? You mentioned you see it wasn't changed on Tuesday and went straight for the Full backup. What about Monday?
CASE 2: You find the file in Tuesday's Differential - How do you restore it? Do you run the restore the full backup first and then Tuesday's differential? correct?
SOLUTION
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Full backup on Saturday will get all files/folders that you selected.
The differential backup will get all folders/files that have be modified or created new since the last Full Backup.
For differential backups (not incremental), You should only need the Wednesday backup to restore any new files or modified files since Saturday.
If someone deleted files that have not been modified during Saturday - Wednesday, then those files will need to be restored from the Saturday Full backup.