quicker ide

Stegs · 5th January 2004, 2:45 PM

just wondering if sharing my hdd with my cdrw slows down data transfer of the hdd.?

fxr91 · 5th January 2004, 3:04 PM

The slow down will occur when you transfer data between them as you saturate the IDE channel, but if the CD is not in use, it shouldn't make a difference to the HDD speed.

anlashok · 6th January 2004, 4:07 AM

the controller will work only as fast as the slowest device attached.

Also the controller will only speak to one device at a time.

( this is one of the best things about SATA )

Yes this setup will slow your HDD down, but rember a HDD may have a high burst speed but its the average read/write speed thats more of a concern.

Your CDR if new will be ata33 most likely and you will be getting slowed down a bit on your hdd

looktall · 6th January 2004, 4:19 AM

Quote:

Originally posted by anlashok
the controller will work only as fast as the slowest device attached.

only if you are using both devices at the same time.
ie. transfering data from a cdrom to a hdd.

the ATA specs allow for each device to run at their indivual speeds during normal usage.

Stegs · 6th January 2004, 12:12 PM

ah cool, thanks guys

anlashok · 6th January 2004, 4:31 PM

Quote:

Originally posted by looktall
only if you are using both devices at the same time.
ie. transfering data from a cdrom to a hdd.

the ATA specs allow for each device to run at their indivual speeds during normal usage.

You mind posting a link to the white paper that supports this.

Without independant timing and or the use of ATAPI, or PIO mode devices sharing the channel. The speed is that of the slowest one on the channel.

looktall · 6th January 2004, 5:13 PM

Quote:

Originally posted by anlashok

Without independant timing

but ATA does use independant timing.

i'm trying to find a white paper, but it's proving difficult. lol
i'll see what i can find.

EDIT: i am talking about ultra ATA here by the way.

and the closest i've been able to get to finding something to back up my statement comes from an FAQ on seagate's site.

Quote:

Can I mix Ultra ATA/33 and Ultra ATA/66 drives on the same cable?

Yes, a legacy ATA specification drive can coexist with an Ultra ATA/66 drive, and both devices can attain their maximum performance. However, for the Ultra ATA/66 device to attain Ultra DMA 4 mode, an Ultra ATA/66 capable cable is required.

http://www.seagate.com/support/kb/di...ra_ata_66.html

anlashok · 7th January 2004, 12:55 AM

Ultra ATA66 / 100 / 133 - Hard Drives - will work quite happy mixed with each other on a controller and using 80pin wire. "apart from the one device access at a time bit" AFAIK

5th January 2004, 2:45 PM	#1
Stegs Member Join Date: Dec 2003 Location: Baulkham Hills Posts: 59	quicker ide just wondering if sharing my hdd with my cdrw slows down data transfer of the hdd.?

5th January 2004, 3:04 PM	#2
fxr91 Member Join Date: Feb 2002 Location: Brisbane, QLD Posts: 7,548	The slow down will occur when you transfer data between them as you saturate the IDE channel, but if the CD is not in use, it shouldn't make a difference to the HDD speed. Last edited by fxr91; 5th January 2004 at 3:07 PM.

6th January 2004, 12:12 PM	#5
Stegs Member Join Date: Dec 2003 Location: Baulkham Hills Posts: 59	ah cool, thanks guys Last edited by Stegs; 6th January 2004 at 12:12 PM.

7th January 2004, 12:55 AM	#8
anlashok Member Join Date: Jan 2003 Posts: 1,729	Ultra ATA66 / 100 / 133 - Hard Drives - will work quite happy mixed with each other on a controller and using 80pin wire. "apart from the one device access at a time bit" AFAIK Last edited by anlashok; 7th January 2004 at 1:02 AM.

6th January 2004, 4:07 AM	#3
anlashok Member Join Date: Jan 2003 Posts: 1,729	the controller will work only as fast as the slowest device attached. Also the controller will only speak to one device at a time. ( this is one of the best things about SATA ) Yes this setup will slow your HDD down, but rember a HDD may have a high burst speed but its the average read/write speed thats more of a concern. Your CDR if new will be ata33 most likely and you will be getting slowed down a bit on your hdd