Re: 8 milliseconds minimum gap between two consecutive disk I/O

Brian Hall (brianw.hall@compaq.com)
Tue, 04 Jan 2000 11:11:35 -0700 (MST)


Is there a utility to tell if a given drive supports those features?

On 04-Jan-2000 Mark Hahn wrote:
>> IDE doesn't provide for multiple queued commands, disconnect, reconnect,
>> etc. If you want this, you use SCSI. IDE is like a big floppy.
>
> interestingly, everything in that statement is wrong. the current
> ATA spec *does* provide for command queueing and dis/re-connect.
> afaik, no OS uses those features yet, and it might be that no disk
> implements them yet either. ATA's still 1 or 2 devices/chain, though,
> and cable <= 18".

--
Brian Hall <brianw.hall@compaq.com>
http://www.bigfoot.com/~brihall
Linux Consultant

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