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如何差异备份目录

Created: 09 Oct 2013 • Updated: 15 Oct 2013 | 7 comments
This issue has been solved. See solution.

请问:如何差异备份目录。

完全备份选中相应的目录后备份方法中选择如附件f.png,差异备份选中同样的目录后备份方法中选择如附件d.png。

现在问题是:我放了一个文件夹到此目录中,它的大小是100M,执行完全备份后,放到一个20M的文件到此目录中,再执行差异备份,居然看差异备份的大小是120M,我的理解应该是20M才对吧。不知道怎么回事情?

 

Operating Systems:

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Jaydeep S's picture

For this to work, use a policy based backup. In the policy make a template for Full and Differential and then associate the policy to a Selection list. It should work.

pkh's picture

The user is using BE 2010 or earlier.  A policy is not required to do full and differential backup.

Chinashhous2013's picture

Are you sure it is fine if I do it via your suggestion? The policy and use backup wizard is different?

pkh's picture

Where is this test folder located?  If it is on a NAS/server which does not have a remote agent loaded, then any incremental/differential backup will be backed up as a full backup.

To do this test properly, use a test folder in Windows.

Chinashhous2013's picture

The test folder is located on Windows 2008 R2, the backupexec remote agent had been installed on it.

pkh's picture

Since you are using the modified time method, did your full and differential backup jobs use the same selection list?  For your differential backup job, you cannot just select the same object.  You must use the same selection list by using the dropdown list, like below.

BE 2010 - select selection list.png

If you do not use the same selection list, then your differential backup has no baseline reference and will do a full backup.