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#21
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"Al Dykes" wrote in message ... In article , Bob wrote: On 11 May 2004 11:22:14 -0400, (Al Dykes) wrote: You can buy a PCI IDE card with 2 channels and put your optical disks to that. I thought modern computers came with 2 IDE channels on the mainboard. That's 4 devices. yea, but it's not 4 channels, and if you mix a fast and a slow device on a channel it slows down to the speed of the slower one. That's false. Each runs at its own speed generally. |
#22
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"Folkert Rienstra" wrote in message ... "Bob" wrote in message ... On Tue, 11 May 2004 15:36:20 +0200, "Folkert Rienstra" wrote: Actually, it can be problematic when you access the opt. drive that is on the same cable with the source drive while burning. Why? Because it may block the source drive for several seconds, spinning-up the motor/disk to speed and seeking to the desired data and transfer. Hmmm... Doesn't sound like a very intelligent way to implement an optical drive. Welcome to the wonderful world of IDE. I would have assumed they could issue a spin-up instruction and wait for a "ready" interrupt while they do other things. No such command, I'm afraid (AFAICT). Holding the IDE channel up while waiting for the disk to spin up is idiotic. Well, IDE has known overlapped commands for a while now but it is hardly implemented by any devices and also needs driver support for it to work. Don't confuse command queuing and disconnect/reconnect with the spin-up issue. |
#23
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"Bob" wrote in message ... On Tue, 11 May 2004 22:42:01 +0200, "Folkert Rienstra" wrote: Hmmm... Doesn't sound like a very intelligent way to implement an optical drive. Welcome to the wonderful world of IDE. I would have assumed they could issue a spin-up instruction and wait for a "ready" interrupt while they do other things. No such command, I'm afraid (AFAICT). Holding the IDE channel up while waiting for the disk to spin up is idiotic. Well, IDE has known overlapped commands for a while now but it is hardly implemented by any devices and also needs driver support for it to work. Even Microsoft did a better job of implementing the floppy drive than that. Not that I could ever tellg. What you have just said explains why optical disk makers insist you use the master channel and nothing on the slave - they take over the entire channel. Dumb and dumber. They do no so insist. Cite a reference. |
#24
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"Al Dykes" wrote in message ... In article , Folkert Rienstra wrote: "Al Dykes" wrote in message ... In article , Bob wrote: On 11 May 2004 11:22:14 -0400, (Al Dykes) wrote: You can buy a PCI IDE card with 2 channels and put your optical disks to that. I thought modern computers came with 2 IDE channels on the mainboard. That's 4 devices. yea, but it's not 4 channels, and if you mix a fast and a slow device on a channel it slows down to the speed of the slower one. Obviously not. When the slow drive has the bus the other drive isn't doing anything, obviously. If you put a DMA and a non-DMA capable device on an interface the drivers dumbs down to the lower one, right ? That's what I'm refering to. Generally no. There are almost no non-DMA devices around anymore anyway. If they won't do UDMA then they likely'll do DMA2. |
#25
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On Wed, 12 May 2004 00:18:19 GMT, "Ron Reaugh"
wrote: What you have just said explains why optical disk makers insist you use the master channel and nothing on the slave - they take over the entire channel. Dumb and dumber. They do no so insist. Cite a reference. Here's direct correspondence with Mitsumi tech support: +++++ The CDR usually works best alone as master on the 2nd IDE port. If this doesn't help, please call in to technical support for additional trouble shooting at 800-648-7864. -- Thank you for contacting Mitsumi Technical Support! LeAnn Mitsumi Technical Support Tech Support Voice (800)648-7864 Tech Support Fax (712)653-3047 Web Site http://www.mitsumi.com +++++ -- Map Of The Vast Right Wing Conspiracy: http://www.freewebs.com/vrwc/ "You can all go to hell, and I will go to Texas." --David Crockett |
#26
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"Bob" wrote in message ... On Wed, 12 May 2004 00:18:19 GMT, "Ron Reaugh" wrote: What you have just said explains why optical disk makers insist you use the master channel and nothing on the slave - they take over the entire channel. Dumb and dumber. They do no so insist. Cite a reference. Here's direct correspondence with Mitsumi tech support: +++++ The CDR usually works best alone as master on the 2nd IDE port. That's far short of "insists". That is the appropriate place to attach a CD[R[W]] in a system with just a single HD. |
#27
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On Wed, 12 May 2004 03:15:27 GMT, "Ron Reaugh"
wrote: Here's direct correspondence with Mitsumi tech support: The CDR usually works best alone as master on the 2nd IDE port. That's far short of "insists". Picky, picky. In later correspondence, they insisted I have only their CDR on the second IDE channel. That is the appropriate place to attach a CD[R[W]] in a system with just a single HD. I had a tape drive attached on the same channel. That was the problem we were trying to debug - the system would lock up when using the CDR after having used the tape. I did not have a place for the tape on Ch 0 because I had a Zip drive. I replaced the tape with a second hard disk which I put on Ch 1 master and the CDR on the slave, and it all works fine. The tape, it turns out, had buggy drivers. -- Map Of The Vast Right Wing Conspiracy: http://www.freewebs.com/vrwc/ "You can all go to hell, and I will go to Texas." --David Crockett |
#28
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"Bob" wrote in message news:40a1973a.422537@news- The tape, it turns out, had buggy drivers. Tape is just another word for bug in any case in my opiniong. |
#29
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On Mon, 10 May 2004 01:47:14 GMT, "Ron Reaugh"
wrote: So you're gonna pack the HDs next to each other where they'll burn each other up??? No, my case has space for three HDD's so there is space between the two. I have a full tower and there is no way I could use your suggested method. Best way really is to use one channel per device which you can do with a four port sata setup or 2 IDE and 2 sata. I could do the latter on this mb but I'm too lazy. |
#30
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