Question

scsi and sata conflict

Asked by: craighayesdaniels

We have an aOpen server running windows 2000 server.  It boots off an adaptec SCSI Card 29160 Ultra 160.  I just installed an Adaptec Serial ATA 12055A Host Controller.  When I attach a new HD to it, the system tries to boot to the new card.  I played with the bios settings a bit but no luck.  Anyone have and ideas?

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Asked On
2005-10-10 at 13:20:40ID21590114
Tags

12055a

,

adaptec

,

ata

Topic

Miscellaneous Hardware

Participating Experts
4
Points
250
Comments
9

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Answers

 

by: garycasePosted on 2005-10-10 at 13:33:46ID: 15055354

A couple of things to try:

(1)  Does your machine's primary BIOS give you options as to WHICH add-in card to give priority in the boot sequence?  If so, that's the easiest fix.

(2)  If not, does the BIOS add-in for the SATA controller have any options to enable/disable boot?   If so, just disable it.

(3)  If neither of the above work, should be able to modify the order that the BIOS add-ins are installed by switching the PCI slots that the controllers are in.   This would give the SCSI card priority over the SATA card -- and should do what you want.

 

by: GinEricPosted on 2005-10-10 at 22:47:09ID: 15057872

Why did you put a serial card in a highly parallel machine?

Aside from the fact Microsoft is having a plethora of problems with SCSI, USB, and all things Serial on one IRQ trace for Plug and Play [over basically one wire of the twisted pair in USB], the 9/2 Plug and Play cannot handle the traffic.

All drives, and most storage devices, are emulated SCSI in Windows.  This leads to too many conflicts and too much bottlenecking.

If I were you, I'd take the card back and get something either 64-bit PCI [if you have a 64-bit machine], or Parallel ATA, with the preference being either a real 64-bit PCI buss or a real SCSI buss.

That serial card is going to slow down and crash your server, period.

Stop believing what minimum wage sales clerks and Taiwan's USB.org are telling you, USB is a nightmare, not a solution.

How many people can USB fit into a Volkswagon Beetle?

 

by: IanThPosted on 2005-10-11 at 01:46:02ID: 15058548

gineric : why are you saying the serial ata card is not for servers

it is not a crap card imho

I agree with garycase put the boot card ie scsi nearer to the cpu and the sata card further away as the pci priority is usually right to left or cpu away is lowering the priority but you manual for the server should confirm this

does the sata card have a bios if so can you disable it with a jumper or throught the sata card bios itself and then disable boot

 

by: IanThPosted on 2005-10-11 at 01:54:13ID: 15058576

Found it

you have to press f3 when the server starts up and press f2 this will remove the sata card boot device allowing you scsi card to boot

 

by: ridPosted on 2005-10-11 at 04:46:36ID: 15059276

There may be nothing wrong with this particular SATA controller or the technology as such, but the big Q is why mix different disk controller types in a machine that has SCSI? The easiest and most functional approach would be to add another SCSI disk to the chain. Period.
/RID

 

by: GinEricPosted on 2005-10-13 at 06:58:51ID: 15077052

I told you SATA was junk.

It's a serial device, that's going back to about 1950, isn't it?

Windows has a hard time with SCSI, USB, and SATA because they are all emulated through the scsi driver and because they are all trying to use one wire, the Plug and Play IRQ cascade 9/2 and a twisted pair for communication and data transfer.

Intel doesn't like these serial devices either, they are making their 64-bits highly parallel machines look bad, performancewise and otherwise.

Serial stuff is the third party computer sellers trying to make extra bucks by cutting out quality and costs; obviously, parallel [64-120 wires, lands, pins, IC legs, connectors] cost more than your basic telephone company twisted pair of wires.

I think Western Digital has the Parallel ATA drives; I don't know why Maxtor is trying to go serial.

But also keeping the PCI buss, as the new 64-bit PCI buss, is part and parcel of true 64-bit architecture; SATA is not, nor is USB.

SCSI, PATA, and 64-bit PCI and 64-bit IDE are the state of the art.

SATA, like USB, is one of those 50-year old technologies brought back from the dead to pick the pockets of the unknowing.

Yes, it will work for a while, but not as well as the others.  Your SATA replacement can be expected within two years.  They don't spend money, not on product, not on research, not on parts, and not on quality.

The parallel people do.

That is for your future knowledge, or, if you can get a better replacement for this new drive from where you got it.

As for the problem of making it work, if you had XP, F8 would take you to Administrator startup where you could copy the old Operating System to a new hard drive, or, copy the Operating System from an old hard drive.  I don't know if Windows 2000 has this feature.

Add the letter "N" to the end of SATA and you'll get an idea of how I feel about such serial technologies in the age of the highly parallel 64-bit microprocessor.

 

by: craighayesdanielsPosted on 2005-10-17 at 17:19:08ID: 15104053

I'll digest these and try the suggestions this Friday.  

 

by: craighayesdanielsPosted on 2005-10-21 at 11:01:37ID: 15134321

Hi, I tried this today and here is what happened.  I had already tried the computer bios and knew there was not an option for which card.  I had also tried the sata card bios but wasn't sure so looked at that again -- no luck.

I had forgotten about the slot order so did that.  Turns out this machine looks at the cards starting with the farthest away from the cpu so I put the sata card closest.

I haven't split points in awhile so have the wrong accepted and assisted answer.  The points I put in reflect garycase as the accepted answer.  I did give gineric points for an assisted answer because I haven't been paying attention at that level so appreciated the education.  If I could do it again, I'd go his way -- new SCSI drive.

FWIW though, this server is going to be retired within a year (it is about 6 years old) so we are just keeping costs down.

 

by: garycasePosted on 2005-10-21 at 19:25:30ID: 15136804

Glad the slot order did the trick -- it usually does.   I agree there's no real substitute for a good SCSI subsystem.   The only reason for switching to SATA is cost -- and as with most other things, there are sacrifices when you go with lower cost solutions.    As for your accepted/assisted answer -- I don't care how the answer is characterized, your comments make it clear my "...switching the PCI slots "  suggestion was the answer to your question; and anyone reading this question in the future (for help with a similar problem) would clearly understand that.

Thanks for the points -- and glad it's resolved.

20120131-EE-VQP-002

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