USB 2.0

Got my hammer out, and now I'm gonna open the box
Dark Shadow
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Post by Dark Shadow » 02/17/02, 9:41 am

USB 2.0 transfer rate of 480 mb/s (burst) and backwards compatable with USB 1.1. Most 5 port cards come with 4 external ports and one internal one. Now, think it would be possible to find/make/buy an IDE to USB 2.0 converter cable or converter box? I know that USB is a serial cable technology, but shouldn't it be possible to convert over? I mean, think of how easy data transfers, data recovery, cloning, and other such tasks would be?

BTW, anyone know the transfer speed of SCSI, IDE and RAID are?

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Post by RedRage » 02/18/02, 6:43 am

HD speeds are fairly easy
IDE DMA33 = max 33mbps
IDE DMA66 = max 66mbps
IDE DMA100 = max 100mbps
IDE DMA133 = max 133mbps

Scsi.. where are quite a few but the max
Ultra160 = max 160mbps

Raid speeds really depends on the setup. If you got raid striping then with 2 drives you in theory double the speed

Of course you never get the speeds listed, with DMA 100 the max burst speed i've seen on sites was 70mbps (give or take). Its more of a drive limitation once you get going past 160 which is another reason for raid.

Duno bout you but i woudln't trust my boot drive on USB unless it was on a Mac

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Post by Dark Shadow » 02/19/02, 4:20 am

So what you are saying is that both firewire and USB 2.0 are about 4 times faster than the fastest IDE and even SCSI? So say you get a 1200 RPM drive or something like that, with a USB 2.0 interface, you would have a screaming fast system for cheaper than anything else out there and theoretically faster than RAID? I have one word about that. Damn. <IMG SRC="/phpBB/images/smiles/icon_biggrin.gif">

I'm still wondering though if it is possible to get a USB 1.1 or USB 2.0 to IDE converter.
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<font class=editedby>[ This Message was edited by: Dark Shadow on 2002-02-19 14:29 ]</font>

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Post by RedRage » 02/19/02, 7:14 pm

>So what you are saying is that both firewire
>and USB 2.0 are about 4 times faster than the >fastest IDE and even SCSI?

The Interface is, could you get your HD to go faster because of it? I doubt it. The drives are still limited by the built on controler.. there a plenty of places that sell USB/FireWire External cases for IDE Drives but no matter how fast the the USB/FireWire interfaces get the speed will be limited by the controler built on the drive and by the accuall speed of the drive. The only things i can think of that may be an advantage to having a Firewire/USB drive would be portability, free up and IDE port and reduce the bottle neck on the IDE controler.

What I'm saying is you can not make a drive go faster just by plugging it in to a usb/fireware interface other than reducing the bottle neck (also normally there is less of a bottle neck on the USB/Firewire port) on the IDE/SCSI bus there is no speed gain.

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Post by Gerry » 02/20/02, 12:30 am

Refering to Red's Sig:

Yeah brain bench is a cool idea and I've had an account there for a while, however I have found that every so often (like 1 in every 15) a question will come up that makes absolutly no sense because it describes a situation where unless you have made the same fuck up that they describe, then there is no way that you could possibly know the results.

I don't believe it is right to ask a question about the results of a user mistake, cause you may of never made that mistake. Also there are a lot of questions that are worded VERY badly.
I answer rhetorical questions for my own enjoyment.

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Post by RedRage » 02/20/02, 6:53 am

<font size=2>
I got the some questions like that on the CCNA test and I seen similar on the A+ and Network+ practice tests. Its not uncommon and I can see why they ask them. I don't like it much either but, ya do need to know how to do it <IMG SRC="/phpBB/images/smiles/icon_smile.gif">
</font size=2>

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Post by JohnT » 02/20/02, 6:58 am

<!-- BBCode Quote Start --><TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font class=postbody>Quote:</font><HR width=100% color=#333333 SIZE=1></TD></TR><TR><TD><FONT class=quote><BLOCKQUOTE>
On 2002-02-20 08:30, Gerry wrote:
Refering to Red's Sig:

Yeah brain bench is a cool idea and I've had an account there for a while, however I have found that every so often (like 1 in every 15) a question will come up that makes absolutly no sense because it describes a situation where unless you have made the same fuck up that they describe, then there is no way that you could possibly know the results.

I don't believe it is right to ask a question about the results of a user mistake, cause you may of never made that mistake. Also there are a lot of questions that are worded VERY badly.

</BLOCKQUOTE></FONT></TD></TR><TR><TD><HR width=100% color=#333333 SIZE=1></TD></TR></TABLE><!-- BBCode Quote End -->


It might not seem fair from your perspective, but experience is wisdom and both come with time, not want. Keep observing. <IMG SRC="/phpBB/images/smiles/icon_biggrin.gif">

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Post by Gerry » 02/20/02, 7:33 am

Firstly, I must point out I did very well on those tests that I took, however I didn't see why I should be marked wrong on questions such as those.

Ok then, to both of you two I have a question and don't cheat by checking it, this points out what I mean, I have chosen a topic that you are surely familiar with, "bootup":

What happens at bootup as a result of a line in the AUTOEXEC.BAT that reads "start explorer.exe" (using the default windows 9x configuration)?

a) System crash.
b) Safe mode is entered.
c) A pompt saying that the file is already loaded pops up on the next line.
d) A pompt saying 'bad command or file name' pops up on the next line.

Now I don't care how much experience or wisdom you have, unless you have done this before (ie. made a mistake) then there is now way that you can be 100% which is the correct answer.

After you have both written your answer I tell you what the correct answer is.
I answer rhetorical questions for my own enjoyment.

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Post by Dark Shadow » 02/20/02, 9:32 am

It would read "Bad command or file name" because the command "start" would throw it off. If you just put "exporer.exe" it would boot to windows (because the system.ini is run first) and then you would be looking at explorer once you got into windows.

Not totally sure about that but I'm fairly certain. I don't think wisdom has anything to do on this one though. I mean, this is total knowledge and I know alot of people who are much wiser and are more experienced than I am but who would never figure this out. <IMG SRC="/phpBB/images/smiles/icon_smile.gif">

*is still looking for a USB 2.0 to IDE converter.*

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<font class=editedby>[ This Message was edited by: Dark Shadow on 2002-02-20 18:15 ]</font>

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Post by JohnT » 02/20/02, 11:38 am

I agree with dark on your question.
I've taken test where the logic of asking a question like that escaped me, but when looking back there was always logic from the perception of someone else.

(To Dark).....The sum of your experience, equals your total knowledge. You can't compare yourself to someone else and nor can they likewise. Their experiences are different and so are the levels of wisdom, or not......

I think that's all I need say on this subject. <IMG SRC="/phpBB/images/smiles/icon_biggrin.gif">

<font class=editedby>[ This Message was edited by: JohnT on 2002-02-20 19:43 ]</font>

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Post by Dark Shadow » 02/20/02, 3:30 pm

Are you a Buddist or something, cuse you are starting to sound like one. No offense or anything one way or another but just an FYI if you arn't.


"(To Dark).....The sum of your experience, equals your total knowledge. You can't compare yourself to someone else and nor can they likewise. Their experiences are different and so are the levels of wisdom, or not......"


So basically what you are saying is that since I (or anyone else for that matter) can't be compared with anyone else in wisdom factor or experience then there is no measurment for wisdom and experience. This also means that no matter who you are or where you are from you have the adequite wisdom for your situation becuase if wisdom cannot be measured, it cannot be determined that you have too little of it. <IMG SRC="/phpBB/images/smiles/icon_smile.gif"> That also means that Gerry has all the wisdom he needs for every situtation he is/was/or will be in.

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<font class=editedby>[ This Message was edited by: Dark Shadow on 2002-02-20 23:51 ]</font>

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Post by JohnT » 02/21/02, 1:00 am

The measurement is your comprehension of the difference between intelligence and wisdom.

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Post by Dark Shadow » 02/21/02, 2:34 am

*gets a bad taste in his mouth*
Bla...

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Post by Gerry » 02/21/02, 4:49 am

Ok what John and Dark said at the bottom of the first page was exactly what I was trying to say, I don't believe tose sort of questions are logical.

Anyway the answer is:

What happens at bootup as a result of a line in the AUTOEXEC.BAT that reads "start explorer.exe" (using the default windows 9x configuration)?

e) I don't know beacuse I've never been stupid enough to try, cause I know it will cause an error, so I don't know why they expect anyone to know the answer to a question like this.
I answer rhetorical questions for my own enjoyment.

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Post by RedRage » 02/21/02, 6:38 am

Yes Gerry, I see where your comming from but they're not testing you have seen they're testing you on how well you can diagnose a problem. If you go to a customer's house then you gota know.. or atleast know how to figure it out. Thats what they're testing you on.

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