HP Surestore 80fx HP StorageWorks Library and Tape Tools FAQ - Windows GUI Ver - Page 20

How fast will my backups be?, Device Performance test, System Performance Backup Pre-test

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Page 20 highlights

How fast will my backups be? To determine backup performance, you must measure how fast the disks can deliver data and how fast data can be written to the tape. Backup performance will be the slower of these two measurements. • Use the Device Performance test to measure the speed of the tape drive. • Use the System Performance Backup Pre-test to measure the speed of the disk subsystem. Note this test is independent of the backup application. Please check with your backup vendor if actual backup performance is significantly slower.

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How fast will my backups be?
To determine backup performance, you must measure how fast the disks can
deliver data and how fast data can be written to the tape. Backup
performance will be the slower of these two measurements.
•
Use the
Device Performance test
to measure the speed of the tape
drive.
•
Use the
System Performance Backup Pre-test
to measure the speed of
the disk subsystem.
Note this test is independent of the backup application. Please check with
your backup vendor if actual backup performance is significantly slower.