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*nix Thread, Raid card not showing drive in Technical; Ive got an adaptec raid card, and finally managed to get it to build a raid 5. But the OS ...
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    RabbieBurns's Avatar
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    Raid card not showing drive

    Ive got an adaptec raid card, and finally managed to get it to build a raid 5. But the OS doesnt seem to show anything under fdisk -l with regards to the new array?

    lspci shows the card ok

    00:13.0 RAID bus controller: Adaptec AAC-RAID (rev 01)

    Do i need to do something in the kernel to allow raid ?

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    sometimes cheaper 'software' raid cards aren't recognised by linuxes because it is generally assumed that linux raid does a better job than the cheapo raid cards.
    if this is the case you may as well just use the software raid.
    *I make the assumption that you didn't just go out and spend a few hundred quid on a decent raid card without checking hardware compatibility

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    RabbieBurns's Avatar
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    It retails for a couple of hundred quid but I got it 2nd hand. And it lists linux as supported.

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    Hi,

    It would be worth double checking aacraid is allowed in your kernel configuration before we try anything else I'd think.

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    RabbieBurns (1st September 2009)

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    you should see it in lsmod

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    RabbieBurns (1st September 2009)

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    RabbieBurns's Avatar
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    Code:
    robert@roberts ~ $ sudo lsmod | grep aacraid
    robert@roberts ~ $
    Ok, so into the kernel I go...

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    From a genkernel'd gentoo box.


    me@moi ~ $ lsmod | grep aacraid
    aacraid 54656 0

    Linux moi 2.6.30-gentoo-r4 #1 SMP Thu Aug 6 13:57:15 BST 2009 x86_64 AMD Athlon(tm) 64 X2 Dual Core Processor 5000+ AuthenticAMD GNU/Linux

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    RabbieBurns (1st September 2009)

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    Im not really sure about the kernel, its my weakest thing...

    How would I go from a manually compiled kernel, to a genkernel setup?

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    If you've tuned your manual kernel there's no harm in sticking with it and just enabling aacraid support.

    On gentoo I've always used genkernel just because whilst you sacrifice a little on performance, it's just worked for me. (and moving between Intel/AMD was quite clever 'just working')

    Possibly one to ask on the gentoo forums to get more opinions!

    (or you could just emerge genkernel, let it run and put it in along side your default boot environment and try it and see if it works) * usual caveats of I'm sorry if it explodes.

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    RabbieBurns (1st September 2009)

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    Any idea where it is in the menuconfig ? I cant seem to find it..

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    I went to Device Drivers, SCSI Device Support, SCSI Low-Level Drivers.

    It's listed as a module in my case.

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    RabbieBurns (1st September 2009)

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    Ok, rebooting now, fingers crossed

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    finally

    Code:
    Disk /dev/sdc: 1999.3 GB, 1999307276288 bytes
    255 heads, 63 sectors/track, 243068 cylinders
    Units = cylinders of 16065 * 512 = 8225280 bytes
    Disk identifier: 0x5d21f2c2
    
       Device Boot      Start         End      Blocks   Id  System
    /dev/sdc1               1      243068  1952443678+  83  Linux

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    Superb.



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