# For help: apply log about incremetal backup

**URL:** <https://forums.percona.com/t/for-help-apply-log-about-incremetal-backup/2218>\
**Category:** Percona XtraBackup\
**Created:** [March 8, 2012, 2:41am UTC](https://forums.percona.com/t/for-help-apply-log-about-incremetal-backup/2218 "2012-03-08T02:41:03Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![snowave](https://sea1.discourse-cdn.com/flex019/user_avatar/forums.percona.com/snowave/32/7_2.png) [@snowave](https://forums.percona.com/u/snowave)\
**Post date:** [March 8, 2012, 2:41am UTC](https://forums.percona.com/t/for-help-apply-log-about-incremetal-backup/2218/1 "2012-03-08T02:41:03Z")

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question 1:

i read documention of xtrabackup ,i found :

innobackupex --apply-log --redo-only BASE-DIR --incremental-dir=INCREMENTAL-DIR-1

Repeat the procedure with the second one:

innobackupex --apply-log BASE-DIR --incremental-dir=INCREMENTAL-DIR-2

why the second step not have --redo-only option ?

question 2:

my database has five database, and i want to backup two of this five ,what should i do ? use incremental backup and partial backup ? is the order of restoring the backup :prepare incremental backup then the partial backup ?

Thanks！

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**Author:** ![xaprb](https://avatars.discourse-cdn.com/v4/letter/x/49beb7/32.png) [@xaprb](https://forums.percona.com/u/xaprb)\
**Post date:** [March 8, 2012, 12:07pm UTC](https://forums.percona.com/t/for-help-apply-log-about-incremetal-backup/2218/2 "2012-03-08T12:07:53Z")

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Question 1 is answered in the manual. I am not sure whether Question 2 is answered in the manual. I would need to spend some time researching this to provide a good answer. Unfortunately I’m too busy to do that soon ☹