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Is Raid ok for SATA ports over AHCI

joshpond
in Storage Devices and Controllers

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Hi all,

 

Motherboard is an Asus m4a785T-M (latest BIOS) with 6 sata ports, 1-4 on one controller and 5 and 6 on another.

When I set to AHCI for both it won't pick up a drive on port 5 and 6. IDE and RAID will

 

I know that IDE is slower but can I set it to RAID for all ports and leave it at that?

 

Do you see any problems with that?

 

Thanks Josh

  • Quote

    Which version of unRAID were you trying?

  • Quote
    • Author

    Unraid 4.7 Pro version.

     

    Josh

  • Quote

    I don't know if RAID will work...strange that it doesn't pick up drives on 5/6 using AHCI.  I setup my M4A785-M that way.

  • Quote
    • Author

    Yeah it is a but weird. I don't know if there will be a big performance hit running it in raid like there is with ide.

    Josh

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    What you are seeing seems to be backwards.  Generally ACHI is the best choice and unRAID will have trouble detecting RAID.  You are right that there will be a slight performance hit while using IDE (plus you lose all hot swap ability, which unRAID doesn't support anyway).  If RAID is working for your then I suppose you should go with that.  Just don't actually configure a RAID in BIOS (if the RAID BIOS has a JBOD or NO RAID option, choose that).  You might also want to consider flashing (updating) your BIOS.

  • Quote
    • Author
    What you are seeing seems to be backwards.  Generally ACHI is the best choice and unRAID will have trouble detecting RAID.  You are right that there will be a slight performance hit while using IDE (plus you lose all hot swap ability, which unRAID doesn't support anyway).  If RAID is working for your then I suppose you should go with that.  Just don't actually configure a RAID in BIOS (if the RAID BIOS has a JBOD or NO RAID option, choose that).  You might also want to consider flashing (updating) your BIOS.

     

    Thanks, It's the BIOS not picking up HDDs for ports 5 and 6 when set to AHCI but when in RAID it will. On the latest Bios already, I suspect something is on the fritz with the motherboard but this is the third board as the other 2 had problems too. Asus seem to just send out refurb units as the this one I recieved had the cpu cooler bracket broken and a bent pin on the motherboard. Just had enough of sending it back.

     

    Josh

  • Quote

    That's frustrating, sorry to hear about that.

  • Quote

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