PC Diagnostics - what is a funnel test?

[honeypot]

can someone please tell me what a funnel test is? also linear seek? what does it mean exactly?

 

[gunthnp]

linear seek is a hard drive reading test i don't think i heard of the other one. So long and thanks for all the fish.

 

[guidos]

Linear seek test is, as gunthnp said, a HDD reading test that seeks sequentially through every cylinder on your HDD, as opposed to a random seek test. Have no clue what a funnel test is...is it part of the HDD diags on your PC...?

 

[DeanSpencer]

I asked someone about this and this is what he thinks it is.
He thinks it is like a "Butterfly" test, a test that will move from 1 sector to last, then to 2nd sectot to next to last sector, and continue until it meets in the middle of the hard drive.

Not sure of it myself ,but sounds good..

 

[honeypot]

Hi everyone, i can confirm the butterfly test, received some help from a mate..and this is what he told me

Funnel Seek (aka Butterfly Seek) - tests track zero first, and then steps out to test the outermost track next. It then steps back and tests track one and steps out to test the next-to-outermost track. This operation continues until the whole disk has been tested. The butterfly seek is the most rigorous seek test.

Linear Seek (aka Sequential) - starts at track zero and tests the drive sequentially out to its outermost track. The test ends when the drive reaches the last track.

Linear Read - starts at track (or sector?) zero and read through the whole disk in order testing every track (or sector?) to make sure its readable, it's a non-destructive test and does not thoroughly test the operation of the drive.