Administrator Guide

Add-VMHardDiskDrive -VM $DPMVM -ControllerType SCSI -ControllerNumber $Bus -Path
$VhdTobeAdded
$VHDsOnBus[$Bus] += 1
}
4 After the disks are created, connect to the DPM VM, and initialize the disk by using Disk Manager.
5 Add the disks to the DPM storage pool. For information about how to do this, see Congure storage pools and disk storage.
Monitoring DPM
DPM automatically backs up data according to the backup settings.
At times, DPM backups might fail. For example, a communication failure may occur with the SQL Servers, the SQL Servers may not be
running, or there may be other connection issues.
Dell recommends that you regularly monitor DPM. Dell Hybrid Cloud System for Microsoft installs DPM, the DPM Central Console, and the
management pack that is integrated with Operations Manager. You can monitor all failure alerts in Operations Manager. To do this:
1 Log on to the Console VM by using an account that is a member of the < Prex >Ops-Admins group.
2 Open the Operations Console.
3 In the Monitoring workspace, expand System Center 2012 R2 Data Protection Manager to see the Alert and State views and any
associated alerts.
NOTE
: The DPM Central Console is integrated with Operations Manager (and does not show up as a separate interface). It
enables you (through the System Center 2012 R2 Data Protection Manager node) to monitor all DPM servers, and to take
actions in response to alerts. For more information, see the following topics in the TechNet Library:
• Monitor DPM (http://technet.microsoft.com/library/jj628024.aspx)
• Manage multiple DPM servers with Central Console(http://technet.microsoft.com/library/jj860391.aspx)
As described in
Recovering DPM from DPM failures, recovering a DPM server includes leveraging DPM database backups. Each DPM
server is congured as follows:
• Backs up the DPM database to the E:\ drive on the same VM.
• Scheduled to back up the database every four hours by using the Windows DPMDBBackup Task Scheduler job.
Because this backup job can fail for many reasons, you should regularly monitor the status of this job on all DPM servers. The most
common possible failures include the following.
Table 27. Backup failures
Issue Symptom Resolution
The request to SQL Server to export and
copy the DPM database to the E:\ drive
fails.
Event Viewer displays a SQL Server
database error.
Fix the SQL Server error, and then run the
DPMDBBackup job again.
Drive E:\ runs out of space. Event Viewer displays a Disk Full error. Delete the oldest le on the E:\ drive (and make
a copy if necessary). Then, run the
DPMDBBackup job again.
Operations 91