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onboard RAID and cdroms?

C

CleanSlate

Supreme [H]ardness
Joined
Mar 28, 2003
Messages
5,263
You know I never really thought about it but do raid cards work with cdroms?

~Adam
 
Originally posted by CleanSlate
You know I never really thought about it but do raid cards work with cdroms?

~Adam
Click to expand...

Um, no. RAID works with hard drives only. CD ROM and burners and whatnot use a different way of communicating (can't remember the exact names) with the mainboard, hence no SATA CD ROM/burners yet.
 
I believe the highpoint controller will let you do what you're asking. I'm assuming you dont want to put the cdrom's in raid0, but to use that ide channel for a cdrom device?

The problem is if you have a two ide channel raid card and have a raid setup running, then both of those ide slots are taken. Each hard drive must have it's own channel.
 
I only have one hd in the sig, it's on my ide and my second ide port is fried and I'd like to add a cdrom, but where? I only have the raid controller slots left..

~Adam
 
well, it depends on the brand of onboard raid.

if you have a promise controller, you're sol. Highpoint controllers can be used as seperate IDE channels though
 
All SiliconImage constollers support RAID, plain single HDDs and CD-Drives ...

If you're not sure than look into then manual and check if it suppotrs ATAPI devices (CD-Drives)
 
Originally posted by ’m‚³‚ñ
CD ROM and burners and whatnot use a different way of communicating (can't remember the exact names) with the mainboard, hence no SATA CD ROM/burners yet.
Click to expand...

and Anarchy wins a cookie for ATAPI :p

"ATAPI is the real name of the CD-ROM (EIDE CD-ROM) and tape (ATAPI tape or EIDE tape) interface. This interface was originally developed by a group of CD-ROM companies with lots of help from Western Digial and Oak Technology.

ATAPI did not start as an ANSI standard. It was a specification published by the Small Form Factor (SFF) committee. SFF is an ad hoc disk drive industry committtee that usually concerns itself with things like connectors, the location of mounting holes and other physical configuration stuff. The original SFF document for ATAPI was called SFF-8020 (now called INF-8020).

NOTE: SFF-8020 (INF-8020) is very OBSOLETE and should not be used! The correct documents to use for ATAPI are ATA/ATAPI-4 (or higher) and SCSI MMC or MMC-2.

ATAPI introduced a new command execution protocol for use on the ATA interface so that these new CD-ROM and tape drives could, in theory, be on the same ATA cable with an ATA hard disk drive. Basically, the ATAPI Packet command, command code A0H, is used to send what looks like a SCSI CDB across the ATA interface. The actual data transfer (from/to the device media) is done using the ATA PIO or DMA protocols.

If you want to know what "SCSI like" commands are accepted by ATAPI devices then you should probably read the appropriate SCSI-3 document(s) for back ground information. Then get the appropriate SFF document for the ATAPI device type, for example, SFF-8070 describes the ATAPI super floppy "SCSI like" command set. There are many of these ATAPI "command set" documents floating around the industry today and even keeping a list of them is difficult. Some I know of are: QIC-157 (ATAPI tape), SFF-8070 (ATAPI Removable Rewritable Media), SFF-8080 (ATAPI CD-R/E) and SFF-8090 (Commands for DVD). Locating some of these documents can be difficult"

More info than anyone really wanted Im sure :p


and there are a few ATAPI compliant SATA bridge cards out there these days ;)
http://www.acard.com/eng/press/2004/pcdiy01.html
 
just plug your cdrom into it, you will not hurt your controller nor your cdrom drive.

older ABIT motherboards with the Highpoint 370 did not allow cdroms

but the newer Highpoint 372/374 I beleive do. so if you have one of these controllers you definitely can, other controllers may or may not.

and you do have a highpoint controller, i just can't figure out the version
 
Originally posted by ’m‚³‚ñ
Um, no. RAID works with hard drives only. CD ROM and burners and whatnot use a different way of communicating (can't remember the exact names) with the mainboard, hence no SATA CD ROM/burners yet.
Click to expand...

True, but i have seen some narb on the internet somewhere put together 5 floppy drives in a RAID 0 array.....pointless? yes, but possible....that is for floppies tho, never know about optical drives
 
Originally posted by Munka
True, but i have seen some narb on the internet somewhere put together 5 floppy drives in a RAID 0 array.....pointless? yes, but possible....that is for floppies tho, never know about optical drives
Click to expand...
ah, thats true, hmmmmm
 
Originally posted by Munka
True, but i have seen some narb on the internet somewhere put together 5 floppy drives in a RAID 0 array.....pointless? yes, but possible....that is for floppies tho, never know about optical drives
Click to expand...

Speaking of Floppy drives, I've been wanting to partition a Floppy for the longest time... Never figured out how. :p

Actually, raid 0 might come in handy on a floppy. Assmuming you had a way to get that many floppies hooked into one computer (power and ports would be a problem), getting that many floppy disks isn't a problem. You could use it as a little hard drive, almost...
 
those are some mighty nice looking FDDs

but of course I dont have a mobo that supports booting to USB
(I think ) Maybe I should look at available BIOS upgrades
 
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