'Bob I' wrote:
| With 12 IDE drives, how are they accessed? The IDE spec calls out 4
| channels with 2 drives per channel. Or is the external unit handling it
| and presenting 2 drives as a single unit?
_____
Twelve drives are accessed in the same way as four or eight drives. Plenty
of motherboards were made with more than one dual channel IDE controller;
not even requiring an adapter card to get up to 8 IDE devices. You can have
as many ATA host controllers as you wish.
Phil Weldon
"Bob I" <birelan@yahoo.com> wrote in message
news:OG8bQfszHHA.3788@TK2MSFTNGP02.phx.gbl...
|
|
| Leythos wrote:
|
| > In article <#LRkr$rzHHA.1100@TK2MSFTNGP06.phx.gbl>,
birelan@yahoo.com
| > says...
| >
| >>Let see, while IDE only handles 8, you can put 15 SCSI drives on a
| >>single card, heck, 2 SCSI cards and you have 30 already. Then there is
| >>the USB option. That was pretty easy. And what prevents the user from
| >>multiple power supplies? There are cases outfitted with dual PSU's so
| >>that doesn't appear to be an issue either.
| >
| >
| > And there are external drive cage arrays. We have one server setup with
| > 12 IDE drives using a two Promise SX6000 RAID controllers, works fine,
| > allows hot swap....
| >
|
| With 12 IDE drives, how are they accessed? The IDE spec calls out 4
| channels with 2 drives per channel. Or is the external unit handling it
| and presenting 2 drives as a single unit?
|