to our white papers on http://www.hpe.com/support/hpesc. Select the product first and look at the
Information Library.
Procedure
Is the tape drive reading and writing data at the correct speed?
Is the source system (hard disk) transferring data at the correct speed?
Is the backup application writing buffers at the correct speed? You may need to tune the transfer,
buffer, and block size settings to optimize the speed that the application writes data to the tape drive.
HPE LTO Ultrium 8 drives have an internal buffer of 1 GB.
Is the operating system tuned for performance? You may need to adjust the data transfer packet size.
If you are using an SAS drive or array in a SAN environment, are you are using one of the
recommended Fibre Channel/SAS routers?
Are user applications, such as Exchange or database servers, optimized for backup performance?
Are there other factors that could be affecting performance, such as interference or Fibre Channel
infrastructure?
40 Planning your system configuration
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