Blackmagic Design DeckLink Studio 4K Capture & Playback Card - Manual (Page 45)

Blackmagic Disk Speed Test 45
What is Blackmagic Design Disk Speed Test?
Blackmagic Disk Speed Test measures the read and write performance of storage media in video frame
sizes. Disk Speed Test is included free with any Blackmagic Design product installation on Mac OS X and
Windows or can be downloaded free from our website. Access the Disk Speed Test settings by clicking on
the Settings button (the gear icon), located just above the Start button.
Select Target Drive
Click Select Target Drive and ensure you have Read and Write permissions.
Save Screenshot
Click Save Screenshot to save a screenshot of the results.
Stress
The stress level can be set between 1GB and 5GB in 1GB increments. 5GB is the default setting and will
provide the most accurate results.
Disk Speed Test Help
Click Disk Speed Test Help to launch the PDF manual for Disk Speed Test.
About Disk Speed Test
About Disk Speed Test displays which version of the Disk Speed Test you are running.
Start
Click the Start button to commence the disk speed test. Disk Speed Test will write and then read a temporary
file to the selected target drive. Disk Speed Test will continue writing and reading until you stop the test by
clicking the Start button again.
Will it Work?
The “Will it Work?” panel shows common video formats and displays a check mark or cross to indicate if
disk performance is adequate. Be sure to do several test cycles to reveal any video formats for which the
disk performance might be marginal. If a video format exhibits a check mark switching between a cross, it
indicates that the disk storage cannot reliably support the video format.
How Fast?
The “How Fast?” results panel shows the frame rates your drive can achieve and should be read in conjunction
with the “Will it Work?” panel. If the “Will it Work?” panel shows a green check mark for 2K 1556@25fps
in 10 Bit YUV 4:2:2, but the “How Fast?” panel shows that a maximum of 25fps will be supported, the disk
storage performance is too marginal to be reliable.
Open the Settings menu by clicking the gear icon.
Blackmagic Disk Speed Test