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avaadore
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reusing daily backup for offsite replica

Post by avaadore » Nov 05, 2014 3:45 pm

anyone has a similar setup?
We use daily backups of our vm`s with a syntethic full once a week.
can we reuse the daily backup to copy an hourly backup to our offsite location?
kind regards,

foggy
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Re: reusing daily backup for offsite replica

Post by foggy » Nov 05, 2014 4:07 pm

Do you mean you want to use it to seed the initial backup copy to offsite location?

avaadore
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Re: reusing daily backup for offsite replica

Post by avaadore » Nov 06, 2014 7:56 am

hi, no i want a way to reuse the daily backup.
instead of creating a seperate backup job which need to copy everything again, on an hourly schedule

veremin
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Re: reusing daily backup for offsite replica

Post by veremin » Nov 06, 2014 9:15 am

You can use a backup copy job for that purpose. Just make sure that existing connection is enough for backup copy job to process new data within hourly interval. Thanks.

avaadore
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Re: reusing daily backup for offsite replica

Post by avaadore » Nov 06, 2014 10:47 am

Maybe i should describe our situation and wish better :)

Have: We currently do one daily backup with a synthetic full on friday. after every daily backup, the files are written to tape.
Want: additonaly to what we have, we want to have an hourly backup to our remote location.

What is the best (least impact) way to set this up?
- Create a seperate backup job to remote location which does hourly backups
- Change current backup job to hourly instead of daily and use backup copy job afterwards. (more diskspace needed?)
- Something else?

veremin
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Re: reusing daily backup for offsite replica

Post by veremin » Nov 06, 2014 10:52 am

Either approach should work fine, it's up to you to decide which one serves your needs better. And, of course, you will need to set hourly schedule for source backup job, if you want to make backup copy job create hourly points. Otherwise (with daily schedule), only one restore point will be created each day by both backup and backup copy jobs.

Thanks.

avaadore
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Re: reusing daily backup for offsite replica

Post by avaadore » Nov 06, 2014 10:55 am

thanks Vladimir,
my only problem with changing the current backup from daily to hourly, is that it currently works without any problems, i dont want to introduce new problems :)

foggy
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Re: reusing daily backup for offsite replica

Post by foggy » Nov 06, 2014 11:52 am

May I ask you why do want to have hourly retention offsite? It is more common to have more frequent local backups for operational restores and then use backup copy jobs to copy them to some other (offsite) storage with longer retention for archival purposes.

avaadore
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Re: reusing daily backup for offsite replica

Post by avaadore » Nov 06, 2014 11:54 am

disaster recovery :)

foggy
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Re: reusing daily backup for offsite replica

Post by foggy » Nov 06, 2014 12:03 pm

Well, any backup is for disaster recovery. Anyway, you have to select one of the approaches mentioned above to implement what you're after.

avaadore
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Re: reusing daily backup for offsite replica

Post by avaadore » Nov 06, 2014 12:15 pm

*offsite* disaster recovery site :)
The backup copy job after the first hourly job would take alot of time to copy.
Will this pause the hourly backup job?

or

i could just the configure secondary destinations for this job!

foggy
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Re: reusing daily backup for offsite replica

Post by foggy » Nov 06, 2014 12:26 pm

Actually, the opposite. Regular backup job has a priority over the backup copy job and, in case of reverse incremental mode, running backup copy job will be paused to let backup job create its restore points. However, with forward incremental backup mode only latest restore point file should be locked and backup copy job will continue to run normally once the backup job triggers.

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