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What is a "Butterfly test"?

By Mr Thompson ·
This is a question from an IT TAFE course I am completing. The subject is 'Diagnostic Software'. My suspicion is that it relates to a loop back test. Any feedback would be much appreciated. (I have been unable to find an answer elsewhere on the Web!)

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What is a "Butterfly test"?

by Raffi_ In reply to What is a "Butterfly test ...

I suspect that what you are referring to is:
1. (long shot) the ability of the Processor to perform an FFT (Fast Fourier Transform)

2. (likely) the "butterfly seek test" (low seek, high seek). Executes seeks in a butterfly pattern to test the drive. The test will terminate if an error is encountered during self-seek testing.

Regards
Raffi_

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What is a "Butterfly test"?

by Mr Thompson In reply to What is a "Butterfly test ...

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What is a "Butterfly test"?

by allan In reply to What is a "Butterfly test ...

I seem to remember this being associated with a hard disk test, butterfly being a type of read / write. I'm sure that it came from the original version of Norton Utilities Diagnostic programs. By the name butterfly I would assume random read write across the surface of the disk.

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What is a "Butterfly test"?

by allan In reply to What is a "Butterfly test ...

http://www-1.ibm.com/servlet/support/manager?rs=0&rt=0&org=psg&doc=0448D66DDF93801585256716004E2683

See link above

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What is a "Butterfly test"?

by Mr Thompson In reply to What is a "Butterfly test ...

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What is a "Butterfly test"?

by RetroJohnny In reply to What is a "Butterfly test ...

A "butterfly test", or "butterfly seek test", is a diagnostic test performed on disk drives (either hard drives OR floppy drives). It tells the hardware device to span the read/write heads back and forth across the drive while it spins the disk, testing the hardware functionality of the mechanism. This is NOT a volatile test; it will not read or write data to/from the disk. Those are separate tests. The butterfly seek test ensures that all of the heads are working, capable of "seeing" all of the cylinders and sectors on a disk. MicroScope, made by Micro2000, is a diagnostic product that performs this test (and many others) well.

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What is a "Butterfly test"?

by Mr Thompson In reply to What is a "Butterfly test ...

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What is a "Butterfly test"?

by Mr Thompson In reply to What is a "Butterfly test ...

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