P55-GD65 (Bios 1.6) Need help with RAID-1 and SATA DVD-RW

Sorry if this has been already asked; did a search.
Trying to configure 2-Seagate Barracuda 7200.12 750 GB drives in a RAID-1.
I also have a SATA DVD-RW plugged in as well.
I enabled RAID mode = RAID in BIOS, pressed CTRL-I when booting to enter Intel's RAID configure screen, when there set the RAID 1 volume, exited.
Booted into Windows XP, went to load the RAID driver and..... no DVD-RW to read the disk. ?
Back in the BIOS, sure enough, all the SATA devices had disappeared except for SATA 7.
Is this a restriction of Intel RAID - that you have any RAID, all the SATA ports are RAID only?
I couldn't find any settings to choose which SATA ports are RAID and which are not.
Thanks,

Quote from: NovJoe on 11-February-10, 22:03:57
Try to move your DVD drive to another SATA port.
I did end up moving the DVD-RW to SATA7 and yes it shows up always.
But that is a disappointment. Apparently, with these Intel SATA controllers, RAID is an all or nothing proposition - turn on RAID and that will be the only use for SATA1-SATA6. At least that's my theory; Intel doesn't spell this out. This is a bummer for me, as I had hoped to use SATA1 and SATA2 for a RAID-1 and hang other devices off SATA3-7.
I could use the Jmicron RAID, as that uses just two ports, but that occupies SATA7 and SATA8, and (apparently) SATA8 is the eSATA connector on the rear panel - not very useful for a RAID.

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    Now Barefeats has run some tests, and I can pretty much back up what they say from my own experience.
    Mac OS X and apps can be helped only so much by a faster boot drive, and a single 10,000 RPM Raptor is enough, RAID O a pair is overkill.
    If you install everything on the boot Raptor and keep your space hogging files (except iTunes) in new folders on another drive, even a 7,200 RPM 500GB, the two drives combined is faster as there is nearly no wait. Both drives can be accessed at the same time. Keeping the boot drive slim keeps the stylus (arm) moving as little as possible to get all the small reads/writes Mac OS X needs.
    I RAID O-ed my boot drives because 74GB was the largest they had at the time, so combining them gave me speed and larger storage. I hardly use the speed, it only comes in handy if by rare chance I duplicate a 20GB folder, then I can do it in half the time of a 7,200 RPM drive.
    Some of the drawbacks of a RAID O set, especially as a boot drive is that I have to auto-clone the whole set to a external drive regularly (I actually do a couple). Since the data path is separated with a RAID O, any drive failure results in total data loss.
    So if you RAID O those 150GB Raptors, your going to have to clone 300GB to a external drive (or another internal) regularly, like once a week. This will take considerable time and you can't use the machine while the cloning process is going on. Sure auto-cloning software like DeJaVu can be used at night/weekends, but why bother cloning more than you have to for no big speed increase?
    However if your messing with huge Photoshop files that spill over your CS2 3GB RAM limit (you need to have a "scratch" thats as fast as RAM), duplicating large files and other heavy duty drive work, then a boot RAID O will come in handy. Just remember your initial performance of 185 MB p/s will drop about 20-25% when those drives are 3/4 filled. Still 140 MB p/s is extremely good and a no worry situation.
    What is worrysome is anything below 80MB p/s (I'm talking uncached 4K write speeds under X-Bench) with a new boot drive and then as time elaspes that boot drive gets filled up and loses half or more of it's inital speed. 30 MB p/s is really slow. Beachball H&LL.
    http://www.barefeats.com/hard33b.html
    Do Erase W/Zero in Disk Utility all new drives before laying data on them. Drives get subjected to shock which causes bad sectors on the drive. Driver software uses your data as a guinea pig to test the sectors (which you might not be able to recover the file). Zeroing does this without your data, rewriting the bad sector map so your writes are much improved, OS is more stable. etc.

  • Deperately need help with my iPod and Pioneer Car Stereo

    I just bought Pioneer's newest deck from Best Buy. The Model number of the deck is DEH-P6800MP. It has a mini jack (2.5 mm stereo jack) on the front of the deck that you can plug your iPod into. I purchased the little adaptor that allows me to just plug the iPod in using the Headphone Jack. It works great. I can use my click wheel to navigate the menus and the sound is awesome...except for one thing, it only plays through the right side speakers. I thought maybe the Fader needed to be adjusted on the deck but everything is dead center. I thought maybe something was wrong with the deck but the Tuner and CD player both work perfectly. I even tried using different cables with no success. When I called Best Buy they told me they were familiar with the problem and to download the newest software for my iPod and it should fix it. It didn't! I am so frustrated by this. I paid alot of money for this deck thinking I wouldn't have to buy any additional interfaces and would never have to deal with an FM transmitter again. Can anybody help?
    Fifth Generation 60 Gig iPod   Windows XP  

    After plugging my walkman in and experiencing the same problem, I figured it must be the adaptor. I went to the local Radio Shack and picked up a mini-jack adaptor that was indeed Stereo. Thankfully it worked!!! I can't tell you how happy my family and I are to have all our music available in the family vehicle. Thanks for your help and @#$% Best Buy for selling me not one but two car stereos under the false pretense that I wouldn't need anything else to hook-up my iPod and then not having any idea how to help me when I needed it.
      Windows XP  

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