xorl %eax, %eax

IBM MegaRAID BIOS Config Utility RAID-10 Configuration

with 13 comments

So, a lot of people have difficulties configuring RAID-10 using MegaRAID because if you have for example four hard disks and you add them to a Disk Group, the only available options are RAID-0 and RAID-1.
Here is how to do this on an IBM System x3650 server with four 300GB SAS hard disks.

During the system boot you will be given the following options.

You will select the “Diagnostics” (in this case using F2 key) and when MegaRAID is loaded you can use “Ctrl+H” key combination to enter the WebBIOS configuration utility.

From the above capture you can also see that there is no virtual disk configured and the controller detected four JBOD disks.
When you enter the utility, you will have the ability to select the adapter you want to configure. In our case we only have one adapter so it is very straightforward.

Next, we have the MegaRAID BIOS configuration main menu for the selected adapter.

From the main menu you select option “Configuration Wizard” and you will get the following screen.

From the above configuration types, we select “New Configuration” since there is no prior configuration. This can also be used if you want to replace the existing configuration with a new one. Before proceeding you will get a warning that this selection will erase the current configuration as shown below.

Next, you select the hard disk drives you want to add to the RAID array. To select more than one press CTRL key. In our case all four disks will be selected in order to implement the RAID-10 level.

In the next window you will have to select “Manual Configuration” if you want to create a RAID-10 array.

Below you select (once again using CTRL key) the first two disks and click “Add To Array” in order to add them to the “Drive Group0” on the right side panel.

After adding the first two disks you click on “Accept DG” to complete the setup of this drive group and create a new one.

Follow the same procedure and add the other two disks to the new drive group and then click “Accept DG” and “Next” to continue.

You add the two newly created arrays to a span by selecting each one of them and then clicking on “Add to SPAN”.

And as you can see below, the selected RAID level is 10. Here you can tune your RAID-10 configuration and when you are ready you click on “Update Size” and then “Accept” button.

Finally, you can continue by hitting “Next” and after the usual warning messages and final review of the configration, the RAID will start initializing.

On the bottom right you have some additional options that you can use but in any case, when the initialization process is completed the RAID-10 virtual disk will be ready to use.


Written by xorl

August 30, 2012 at 12:22

Posted in administration, ibm

13 Responses

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  1. All I can say is thank you! This gave me great reassurance while setting up RAID 10 on my IBM server. Thank you.


    September 1, 2012 at 06:54

  2. Hello, I did followed the steps but it did not work at all. I created 2 arrays of 3 disks that I want to put in Raid10 but when I add the 2 arrays in the SPAN volume and click NEXT, the only RAID level available is RAID00. What am I doing wrong ? Is it because I have 3 disks instead of 2 in each arrays ? I’ve been told that we can put more than 2 disks in a RAID1 level. Is it true ? Sorry, I am doing this for the first time. Thanks for your help.


    September 5, 2012 at 18:44

  3. ok I found my mistake. What I did to fix it is that I created 3 arrays of 2 disks then created a Spanned volume with all these 3 Arrays and then I’ve been able to set it as a RAID 10 array.


    September 5, 2012 at 23:06

  4. we miss you xorl :((


    September 20, 2012 at 20:27

  5. once the raid 10 it configured on BIOS.. then we will run the ServeRaid disc right?, then there is a option in serveraid for the raid configuration? this should be bypass since the raid 10 is already setup in BIOS??


    October 18, 2012 at 16:08

  6. Hi teng,

    I don’t get your question here. My post was about using the RAID controller’s software (MegaRAID) which as far as I know it cannot be configured through server’s BIOS since the same server ships with different RAID controller(s) or in some cases even without one. Can you please be more specific?



    October 29, 2012 at 14:39

  7. Thank, i have to do this at this moment after a lot of year and help me to do it!!!




    November 15, 2012 at 19:05

  8. Hi xorl

    We have 8 disk and I can only see port 0 those 4 disks but not on port 1 another 4 disks in MegaRAID. However, I can see 8 disks in IMM2 without any issue. Do you have any suggestions?


    November 16, 2012 at 06:42

  9. before doing Raid or arry u need to change jbod into Unconfigured Good

    Bharani(IBM server support)

    January 4, 2013 at 16:50

  10. Annnnnnnnd your AWESOME! thanks mate.


    February 20, 2013 at 06:05

  11. Thank, your post aid my to handle the Megaraid utility

    Don Matteo

    March 16, 2013 at 05:34

  12. HI friends,
    can any one suggest if i add a new hdd through configuration wizard, is my data on disk will safe..or i have to take backup first..

    nitesh sharma

    March 17, 2013 at 03:09

  13. You should always backup your data when performing tasks related to hard disks.


    May 18, 2013 at 12:43

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