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Re: SAS on MSI K9A2

bcoombes wrote:
> harikeo wrote:
>> bcoombes wrote:
>>> harikeo wrote:
>>>> bcoombes wrote:
>>>>> harikeo wrote:
>>>>>> bcoombes wrote:
>>>>>>> harikeo wrote:
>>>>>>>> bcoombes wrote:
>>>>>>>>> harikeo wrote:
>>>>>>>>>> Does anyone know if the controller on one of
these
>>>>>>>>>> motherboards can have
>>>>>>>>>> one SATA and one SAS at the same time?
>>>>>>>>> Depends whether you have the platinum version or
not. The
>>>>>>>>> Platinum can.
>>>>>>>>
>>>>>>>> Yes I have the platinum version... sorry should have
mentioned
>>>>>>>> that.
>>>>>>>
>>>>>>> Do you have the SAS drive plugged into one of the red SATA
>>>>>>> headers? (you must).
>>>>>>
>>>>>> Yes.. I didn't think the RAID utility would see the drive if it
>>>>>> wasn't.
>>>>>
>>>>> Have you installed the Promise driver?
>>>>
>>>> Yes the driver is installed. hen I attach two SATA drives there are
>>>> two showing in Device Manager as Promise 1+0 JBOD SCSI Disk Device.
>>>> When I remove one SATA and attach a SAS drive only one Promise...
>>>> appears in Device Manager but the drive is powered on and appears
>>>> correctly in the RAID util at bootup.
>>>>
>>>> I was given 4 SAS drives which were removed from a server only two
>>>> days ago, and all 4 are working fine....in the RAID util I can
>>>> delete the data on the drive, remove it and re-assign it, so afaik
>>>> it's still working fine.
>>>
>>> Are you saying you've configured a SATA and a SAS drive in the same
>>> raid (jbod) array?
>>
>> I don't think it's an array as such... not like RAID 5... with the two
>> SATA drives in JBOD mode they both appear in Windows as separate
>> drives and are completely separate. I did the same with the SAS drive
>> thinking (hoping) it would be the same.
>>
> Something is wrong there, Windows should see a jbod RAID setup as one
> logical volume. It's not true RAID (just a bunch of disks..ho..ho) and
> has no advantages other than convenience. So with two jboded sata drives
> Winders should have seen one volume, I don't think you can then
> substitute a SATA drive for a SAS drive in that setup.(not 100% sure on
> that, it may vary from controller to controller)

Doh, I mean substitute a SATA drive for a SAS drive of course, must be bedtime. :)

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