[SunHELP] Second IDE Drive on Solaris x86

[Will Mc Donald]

I was wondering what sort of x86 motherboard it must be to only have one IDE
channel?!

Most boards that have onboard controllers have Primary and Secondary channel
(different physical connectors on the board), each capable of taking 2
devices, a Master and Slave. A device on either channel can be accessed at
the same time but not a Master and a Slave sharing a single channel.

Performance with 2 devices will be fine if they're on separate channels,
i.e. one Primary Master and one Secondary Master.

Will.

----- Original Message -----
From: Gregory Leblanc <gleblanc at cu-portland.edu>
To: <sunhelp at sunhelp.org>
Sent: Wednesday, December 06, 2000 12:39 AM
Subject: Re: [SunHELP] Second IDE Drive on Solaris x86


> > We have a MX and DNS server set-up on a PIII 700 MHz, with a 9GB IDE HD.
We
> > are looking at adding a second HD and using it to hold the mail spool.
> > However, since this is all on the same IDE controller, will it increase
> > perfomrance, or decrease?
> >
> > I am not up on the performance associted with IDE, and have heard that a
> > slave IDE device may be slower. Any thoughts?
>
>
> Adding a second drive to a channel on IDE isn't generally a good
> idea.  As long as you never use both disks at the same time, it
> shouldn't hurt performance, but it certainly won't help anything.  Hmm,
> anybody know what PCI IDE controllers Solaris x86 supports?
>
>     Greg