RAID/AHCI dual boot conflict?


ejohnh

Member
Local time
7:33 PM
Posts
2
Location
United Kingdom
OS
W11
Hello All, Having just upgraded my system with new CPU and Mobo, and got W11 up and running on a 120G SSD, I decided to use 2 250G SSds in RAID0 mode as my main system. I eventually got the Raid array set up and was able to see the two systems available at startup. The raid system booted okay but the original system wouldn't boot. Is it because I installed the initial W11 with the SATA in ACH1 mode? When I installed the raid system I included a raid driver during the install. Should I reinstall the original system and include a Raid driver during that installation?
Any advice would be most welcome
Thanks
John
 

My Computer

System One

  • OS
    W11
    Computer type
    PC/Desktop
    Manufacturer/Model
    own build
    CPU
    AMD Ryzen 5 5600G with Radeon Graphics
    Motherboard
    AsusTek ROG STRIX B550-F Gaming WIFI 11
    Memory
    16G DDR4
    Graphics Card(s)
    none (see above)
    Sound Card
    None.
    Monitor(s) Displays
    Toshiba TV
    Hard Drives
    CT240BX500SSD1 240.06 GB SSD 2011E3EEBB71
    and CT240BX500SSD1 240.06 GB SSD 2011E3EEF81B -> Configured as RAID 0 Boot

    _____________________________________________________________________
    Samsung SSD 870 QVO 1TB (backup)

    CT120BX500SSD1 120.03 GB SSD 2015E3F65066

    Corsair Force GS 128.04 GB SSD 1406790300009796088C
    PSU
    Seasonic G12 GM-650 80 Plus Gold Semi-Modular Power
    Case
    Antec
    Cooling
    Air
    Keyboard
    Logitech
    Mouse
    Logitech
    Internet Speed
    ~30Mbs
    Browser
    Chrome
    Antivirus
    Bitdefender
    Other Info
    Macrium Reflect backup
I replied about a similar issue in another forum that I had with the AHCI/RAID setting in the BIOS when having 2 drives in the case at initial setup of Windows. With 2 drives the install chose the RAID and things worked fine until I took one drive out then it wouldn't boot, I had to reinstall Windows and it did so as AHCI, no problem afterward. A second drive could be connected or changed later with no effect on the booting.

Bottom line? One drive in the computer during install so as to avoid the possibility of RAID or intentionally set up as RAID. I'd use RAID 1 to have mirroring/redundancy, if one drive fails the other should be usable, I was recently given an older computer set up that way. RAID 0 is striping, data written across both drives, lose one and all data lost.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe
  • Operating System
    Windows 11 Pro RTM x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
    Monitor(s) Displays
    24" Dell
    Hard Drives
    512GB SSD NVMe, 2TB WDC HDD
    Browser
    Firefox, Edge
    Antivirus
    Windows Defender/Microsoft Security
I replied about a similar issue in another forum that I had with the AHCI/RAID setting in the BIOS when having 2 drives in the case at initial setup of Windows. With 2 drives the install chose the RAID and things worked fine until I took one drive out then it wouldn't boot, I had to reinstall Windows and it did so as AHCI, no problem afterward. A second drive could be connected or changed later with no effect on the booting.

Bottom line? One drive in the computer during install so as to avoid the possibility of RAID or intentionally set up as RAID. I'd use RAID 1 to have mirroring/redundancy, if one drive fails the other should be usable, I was recently given an older computer set up that way. RAID 0 is striping, data written across both drives, lose one and all data lost.
It seems to be to do with the mobo settings where the SATA has to be set into RAID mode in order to configure the raid array. This sets ALL the SSD SATA ports into raid mode or raid ready mode. Just remebering that when doing a clean install of W11 the system(mobo?) asks for a driver. I'll experiment some more. It passes the time anyway :)
PS, I realise the danger of striping without a mirrror but I'm prepared to rely on my backup system to rescue me if I get into trouble. :)
Thanks for you reply
J
 

My Computer

System One

  • OS
    W11
    Computer type
    PC/Desktop
    Manufacturer/Model
    own build
    CPU
    AMD Ryzen 5 5600G with Radeon Graphics
    Motherboard
    AsusTek ROG STRIX B550-F Gaming WIFI 11
    Memory
    16G DDR4
    Graphics Card(s)
    none (see above)
    Sound Card
    None.
    Monitor(s) Displays
    Toshiba TV
    Hard Drives
    CT240BX500SSD1 240.06 GB SSD 2011E3EEBB71
    and CT240BX500SSD1 240.06 GB SSD 2011E3EEF81B -> Configured as RAID 0 Boot

    _____________________________________________________________________
    Samsung SSD 870 QVO 1TB (backup)

    CT120BX500SSD1 120.03 GB SSD 2015E3F65066

    Corsair Force GS 128.04 GB SSD 1406790300009796088C
    PSU
    Seasonic G12 GM-650 80 Plus Gold Semi-Modular Power
    Case
    Antec
    Cooling
    Air
    Keyboard
    Logitech
    Mouse
    Logitech
    Internet Speed
    ~30Mbs
    Browser
    Chrome
    Antivirus
    Bitdefender
    Other Info
    Macrium Reflect backup

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