HP Data Protector Software Performance White Paper

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Tuning Data Protector performance for Microsoft
Exchange Server 2003
Data Protector’s backup and restore performance for Microsoft Exchange Server 2003 can be
improved by modifying its configuration parameters for backups. All tests were executed with
the NULL device to remove the tape drive as a bottleneck.
Figure 60 demonstrates how efficient a higher concurrency value could be. All tests were
executed with the same buffer size of 64 KB because this is the minimum value for a
concurrency of 4 (4 x 16 KB). The minimum buffer for each stream (concurrency = 1) is 16 KB.
Figure 60. Performance of MS Exchange Server 2003 local backup to Ultrium 960 with concurrency 1 - 4
Note: For the test with the concurrency of four, an additional NULL device had to be configured.
Note that for the Exchange Server integration the maximum concurrency of one device is two.
MS Exchange Server 2003
Concurrency 1 - 4
Performance of Local Backup to Ultrium 960
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conc=1, drive(s)=1 conc=2, drive(s)=1 conc=4, drive(s)=2
MB/s