Apple Xsan 1.x - Manual (Page 19)

Chapter 2 Using the Xsan Tuner Application 19
The following table lists the transfer rate that Xsan Tuner tries to sustain for each
stream of the indicated video format.
Note: These are the target data rates used by the Xsan Tuner application based on
QuickTime use of codecs, and may vary slightly from other published data rates for the
same video formats.
About the Test Files
To perform a UNIX or Final Cut Pro read test, Xsan Tuner must first create sample source
files. The files are created in a folder named Xsan Tuner at the root level of the volume
you are testing.
The first time you run a read test, you’ll see a status bar as Xsan Tuner creates the
necessary files.
Note: The creation of the test files Xsan Tuner uses for a test can significantly affect the
results of other tests in progress. Xsan Tuner displays a dialog to inform you when it is
creating test files. If you are testing using multiple clients simultaneously, wait until all
the test files are created before you start a test on any client.
Xsan Tuner deletes its test files when you quit the application.
Video type Format
Minimum data rate
per stream
Standard Definition MiniDV 3.43 MB/s
DVCAM 3.43 MB/s
DVCPRO 3.43 MB/s
DVCPRO 50 6.87 MB/s
Uncompressed SD 8-bit 20.02 MB/s
Uncompressed SD 10-bit 26.7 MB/s
Compressed High Definition DVCPRO HD 5.49 MB/s
Uncompressed High Definition 720p 24 fps 42.19 MB/s
720p 30 fps 52.73 MB/s
720p 60 fps 105.47 MB/s
1080 24p 8-bit 94.92 MB/s
1080 24p 10-bit 126.56 MB/s
1080i 8-bit 118.65 MB/s
1080i 10-bit 158.2 MB/s