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#90924 - 05/20/03 05:21 AM Question: Will there be Serial SCSI???  
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No457_Squog Offline
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With the current 'revolution' of IDE drives, is there any major technological wall that prevents SCSI drives/cards from going the same way?

S!


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#90925 - 05/20/03 08:39 AM Re: Question: Will there be Serial SCSI???  

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Cost, they are $200 more. Why? I have no clue.

#90926 - 05/20/03 11:29 AM Re: Question: Will there be Serial SCSI???  
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Quote:
Originally posted by No457_Squog:
With the current 'revolution' of IDE drives, is there any major technological wall that prevents SCSI drives/cards from going the same way?

S!
SCSI is already a serial interface. IDE technology is finally catching up 30 years later.

-Skater


"As Iron Sharpens Iron, so does a friend sharpen a friend." Proverbs 27:17
"There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female, for ye are all one in Christ Jesus." Galatians 3:28
Never, ever, underestimate the ability of people to discount Occam's Razor. - Dart
"I don't want to abolish government. I simply want to reduce it to the size where I can drag it into the bathroom and drown it in the bathtub." - Grover Norquist
#90927 - 05/20/03 02:17 PM Re: Question: Will there be Serial SCSI???  
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LOL, we use so many acronyms these days I guess we tend to forget what they represent. In this case, Small Computer SERIAL Interface (SCSI).
IDE was adopted as a less expensive (but lower speed) alternative.

btw: Apple Mac's have been SCSI-only since their inception.

Quote:
Originally posted by No457_Squog:
With the current 'revolution' of IDE drives, is there any major technological wall that prevents SCSI drives/cards from going the same way?

S!

#90928 - 05/23/03 04:57 AM Re: Question: Will there be Serial SCSI???  
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No457_Squog Offline
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Whoops... With SCSI cables having 80 pins... I naturally thought they were parallel ( I guess I was comparing them like a Serial port to a Parallel port)

But... aren't there like... 5 pins in Serial ATA cables??? and yet you can get higher speeds?

S!


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#90929 - 05/23/03 05:10 AM Re: Question: Will there be Serial SCSI???  
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Joe Offline
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You can't get higher speeds than SCSI with the current incarnation of SATA.

SATA speeds right now operate at a theoretical max of 150 MB/s.

The old SCSI drives operated at theoretical max of 160 MB/s. The current SCSI drives operate at theoretical max of 320 MB/s.

Later incarnations of SATA will move first to 300 and then to 600 MB/s.

#90930 - 05/23/03 06:36 AM Re: Question: Will there be Serial SCSI???  
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Skater Offline
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Quote:
Originally posted by No457_Squog:
Whoops... With SCSI cables having 80 pins... I naturally thought they were parallel ( I guess I was comparing them like a Serial port to a Parallel port)

But... aren't there like... 5 pins in Serial ATA cables??? and yet you can get higher speeds?

S!
Most LVD SCSI drives operating at 160Mb/s and 320Mb/s have 68-pin interfaces.

U320 SCSI is the fastest available. SATA is not that fast yet. When it is, I am sure that the next iteration of SCSI will operate at 640Mb/s. I do not believe that IDE or SATA technology will ever surpass the SCSI interface.

-Skater


"As Iron Sharpens Iron, so does a friend sharpen a friend." Proverbs 27:17
"There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female, for ye are all one in Christ Jesus." Galatians 3:28
Never, ever, underestimate the ability of people to discount Occam's Razor. - Dart
"I don't want to abolish government. I simply want to reduce it to the size where I can drag it into the bathroom and drown it in the bathtub." - Grover Norquist
#90931 - 05/23/03 01:36 PM Re: Question: Will there be Serial SCSI???  
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Not while they're still cheaper, anyway!
Of course, those high speeds are burst only as no HD can sustain those transfers, and they need to be on the same controller. PCI still gives us a 133MB/s limitation. \:\(


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The anteater is wearing the bagel because he's a reindeer princess. -- my 4 yr old daughter
#90932 - 05/26/03 02:12 AM Re: Question: Will there be Serial SCSI???  
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No457_Squog Offline
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(Sorry to drag this thread up again gents...)

Quote:
Posted by jedimaster:

PCI still gives us a 133MB/s limitation. \:\(
Ahhh... now that's interesting... does that mean that SCSI drives therefore are handicapped by the speed of the PCI bus???

PS: Has anyone seen a motherboard with an onboard SCSI controller? (NOT a 10-year-old mobo :p )

S!


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#90933 - 05/26/03 06:24 AM Re: Question: Will there be Serial SCSI???  
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Skater Offline
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Quote:
Originally posted by No457_Squog:
(Sorry to drag this thread up again gents...)

Quote:
Posted by jedimaster:

PCI still gives us a 133MB/s limitation. \:\(
Ahhh... now that's interesting... does that mean that SCSI drives therefore are handicapped by the speed of the PCI bus???

PS: Has anyone seen a motherboard with an onboard SCSI controller? (NOT a 10-year-old mobo :p )

S!
Yep. Plenty. Use them all the time. I especially like Asus motherboards with onboard Ultra160 and Ultra320 SCSI.

Why? What's your point?

-Skater


"As Iron Sharpens Iron, so does a friend sharpen a friend." Proverbs 27:17
"There is neither Jew nor Greek, there is neither bond nor free, there is neither male nor female, for ye are all one in Christ Jesus." Galatians 3:28
Never, ever, underestimate the ability of people to discount Occam's Razor. - Dart
"I don't want to abolish government. I simply want to reduce it to the size where I can drag it into the bathroom and drown it in the bathtub." - Grover Norquist
#90934 - 05/26/03 06:27 AM Re: Question: Will there be Serial SCSI???  
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No457_Squog Offline
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I wasn't really trying to make a point here... just more inquisitive.

Gotta start thinking about my next computer buy, that's all \:\)

Thanks a lot guys for all your help.

S!


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