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gbturpin

7 Posts

84367

August 4th, 2006 01:00

Dell Precision 490 RAID Configuration Issues

Ok,
 
So I've just purchased 7 Dell Precision 490 workstations... and they are nice.
 
However, I'm a little confused with the SATA RAID options in the BIOS.
 
The AHCI RAID options do not premitt you to configure the RAID array directly, but it appears that you need to use this option in order support NCQ.
 
The straight RAID option allows me to actually get a Contol-I option to setup the RAID configuration directly.
 
...and there is one more BIOS option that is something like "SATA if signature is present..." or other.
 
My issue is this:
 
When I use the plain RAID option (which I gather manually forces the SATA controller to be a RAID controller)... I notice that LINUX doesn't see the RAID configuration I set for it.  (Mirrored, or RAID 1 at his point.)
 
If I use AHCI, then I can't configure the darn array at all... so that's useless...
 
...and I suspect that the 3rd option will be the same as AHCI, but I'll just not have NCQ capibilities supported.
 
How do I configure 2 drives in the Precision 490, under LINUX (Red Hat is what the box came with), to perfrom HARDWARE based mirroring, and ONLY see one drive in the OS?
 
I want transparent hardware based mirroring of the SATA 0 to SATA 1 under Linux...
 
Thanks for any help,
 
Gerhard

dtomas

2 Posts

February 14th, 2011 09:00

Wondering if you had found a solution for this?

 

Thanks,

Deo

osprey4

6 Operator

 • 

34.2K Posts

February 15th, 2011 06:00

Deo,

The original thread is four years old. 

hercuex

6 Posts

May 5th, 2011 05:00

I found the 4 Year Old Thread while searching for info on Dell 490 SAS Config! I understand that the 490 like the 690 Workstation has a built in SAS Raid Controller. I Have 5 of these units and Purchased 10 300GB Seagate 15k SAS Drives, I have the original Drivers Disk for all the Hardware but I am unable to figure out how to Config these drives in a Raid 1 and a Raid 0 on one unit. I have the correct connector bringing the SAS down to a SATA plug and the Power plugs in the connector but all I get is 1 Drive on either 1 or 0 and it isn't 600GB in 0 and the 1 raid setting is only spinning one drive it is not listed as an array? Any help would be greatly appreciated!!! Thank You Harry the Hat!

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