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Back up DPM workloads with Azure Backup

Updated: February 10, 2015

System Center DPM backs up file and application data. Data backed up to DPM can be stored on tape, on disk, or backed up to Azure with Windows Azure Backup. DPM interacts with Azure Backup as follows:

  • DPM deployed as physical server or on-premises virtual machine—If DPM is deployed as a physical server or as an on-premises Hyper-V virtual machine you can back up data to an Azure Backup vault in addition to disk and tape backup.

  • DPM deployed as Azure virtual machine—From System Center 2012 R2 with Update 3 DPM can be deployed as an Azure virtual machine. If DPM is deployed as an Azure virtual machine deployment you can back up data to Azure disks attached to the DPM Azure virtual machine, or you can offload the data storage by backing it up to an Azure Backup vault.

Why backup to Microsoft Azure in addition to physical or Azure disks?

  • For on-premises DPM deployment, you can use Azure backup as an alternative to short-term deployment to disk and to long-term deployment to tape.

  • For DPM deployments in Azure, Azure Backup allows you to offload storage from the Azure disk, allowing you to scale up by storing older data in Azure Backup and new data on disk.

To backup DPM data to an Azure Backup vault you enable online backup for a DPM protection group. Each DPM backup to Azure Backup is a recovery point and Azure Backup provides a current limit of 366 recovery points. From DPM 2012 R2 with Update 5 onwards, you can configure a range of backup and retention settings

Backup settings

  Set month of year Set week of month (first, second, third, fourth, last( Set monthly cadence (every week, two weeks, three weeks, four weeks) Set day of week Set time of day

Yearly backup

Y

Y

x

Y

Y

Monthly backup

x

Y

x

Y

Y

Weekly backup

x

x

Y

Y

Y

Daily backup

x

x

x

x

Y

Retention settings

You can set retention settings for the backups you’ve scheduled. Note that:

  • Each DPM backup to Azure Backup is a recovery point. With an Azure current limit of 366 recovery points your retention time for all backups shouldn’t exceed the 366 limit. In other words the retention times you set for you daily + weekly + monthly + yearly backups should sum up to 366 or less.

  • The maximum retention (recovery point) limits are worked out as follows:

    • Total recovery points = Maximum daily recovery points + maximum weekly recovery points + maximum monthly recovery points + maximum yearly recovery points. Should be equal to or less than 366.

    • Maximum daily recovery points = Number of recovery points per day * Retention in days

    • Maximum weekly recovery points = Number of weekdays selected * Number of recovery points selected * Retention in weeks

    • Maximum monthly recovery points = Number of weeks selected * Number of weekdays selected * Number of recovery points selected * Retention in month

    • Maximum yearly recovery points = Number of months selected * Number of weeks selected * Number of weekdays selected * Number of recovery points selected * Retention in years OR Number of months selected * Number of dates selected * Number of recovery points selected * Retention in years.

  • For daily, weekly, monthly and yearly backups you can specify that the backup will run either once or twice on the specified days.

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