# Backup - do i need to keep ibdata1?

**URL:** <https://forums.percona.com/t/backup-do-i-need-to-keep-ibdata1/2124>\
**Category:** Percona XtraBackup\
**Created:** [March 2, 2011, 9:24am UTC](https://forums.percona.com/t/backup-do-i-need-to-keep-ibdata1/2124 "2011-03-02T09:24:08Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![netpenthe](https://avatars.discourse-cdn.com/v4/letter/n/c57346/32.png) [@netpenthe](https://forums.percona.com/u/netpenthe)\
**Post date:** [March 2, 2011, 9:24am UTC](https://forums.percona.com/t/backup-do-i-need-to-keep-ibdata1/2124/1 "2011-03-02T09:24:08Z")

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Hi guys, got a quick question:

I have a Master - Slave setup running. I’d like to copy the backed up files to offsite backups. Do i need to keep ibdata1?

I am taking a backup off of the slave:  
   
$\>innobackupex-1.5.1 --slave-info --user=root --password=XX --databases=“db1” .

Then I am running:  
$\> innobackupex-1.5.1 --apply-log 2011-03-02\_14-20-10

After doing this, am i free to delete ibdata1???

ibdata1 is about 1 gig in size, the database directory: 2011-03-02\_14-20-10/db1 is only around 12 meg.

Is it safe to just delete the ibdata1 file?

will everything i need be in 2011-03-02\_14-20-10/db1 directory?

Thanks in advance 🙂

Jon