Dell PowerVault DP600 - Manual (Page 97)

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• When a daily consistency check is scheduled and the replica is inconsistent.
See Also
How DPM Operations Affect Performance
Managing Performance
Express Full Backup
An express full backup is a type of synchronization in which the protection agent transfers a
snapshot of all blocks that have changed since the previous express full backup (or since the
initial replica creation, for the first express full backup) and updates the replica to include the
changed blocks. The impact of an express full backup operation on performance and time is
expected to be less than the impact of a full backup because DPM transfers only the blocks
changed since the last express full backup.
See Also
How DPM Operations Affect Performance
Managing Performance
Backup to Tape
When DPM backs up data from the replica to tape, there is no network traffic and therefore no
performance impact on the protected computer.
When DPM backs up data from the protected computer directly to tape, there will be an impact on
the disk resources and performance on the protected computer. The impact on performance is
less when backing up file data than when backing up application data.
See Also
How DPM Operations Affect Performance
Managing Performance
DPM Processes
On the DPM server, three processes can impact performance:
• DPM protection agent (MsDpmProtectionAgent.exe). DPM jobs affect both memory and
CPU usage by the DPM protection agent. It is normal for CPU usage by
MsDpmProtectionAgent.exe to increase during consistency checks.
• DPM service (MsDpm.exe). The DPM service affects both memory and CPU usage.
• DPM Administrator Console (an instance of Mmc.exe). DPM Administrator Console can
be a significant factor in high memory usage. You can close it when it is not in use.