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Thread: RAID 1 or 5 Lunix support

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    not posting kempez's Avatar
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    RAID 1 or 5 Lunix support

    Hi guys

    Our servers are in severe need of new HDD's as one of them doesn't even have RAID on it.

    Ideally what we'd need to do is:
    - Temporarilly move all data on server over to the other one. Also ensure all backups work.
    - Find a card capable of RAID0/5 that is OLD and we know for 100% works on Trustix 2.2
    - Get 2/3 hard disks and take them up to the server
    - Take the server down. Install new disks, install OS, set it up exactly the same as old system

    Basically we need to find a RAID card that is 100% guaranteed to work with Trustix - we'll be upgrading it to the latest kernal at the same time but I put 2.2 to make sure. The server is in a colo so we don't like visiting it much
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    Comfortably Numb directhex's Avatar
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    IDE, SCSI, SATA or SAS?

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    not posting kempez's Avatar
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    Soz ye

    We really want a SATA one, which is where the problem lies - I can't seem to find one that will work
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    Quote Originally Posted by hexah
    Games are developed by teams of talented people and sometimes electronic arts

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    Comfortably Numb directhex's Avatar
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    what kernel does trustix 2.2 use? i can't find the information (my usual source for such things appears to have died)

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    Mefinks it's 2.4.31
    Check my project <<| Black3D |>>
    Quote Originally Posted by hexah
    Games are developed by teams of talented people and sometimes electronic arts

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    Comfortably Numb directhex's Avatar
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    3ware escalade 8500, 3w-xxxx.o driver

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    Agent of the System ikonia's Avatar
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    has to be a 3ware really and I wouldn't try to find a card that supports raid, I'd just use software raid built into linux on that.

    Raid Tools is probably the realistic option as I'm not sure (without looking myself) that mdadm is supported against 2.4 raid.
    It is Inevitable.....


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    Quote Originally Posted by directhex View Post
    3ware escalade 8500, 3w-xxxx.o driver
    Aye we've come to that conclusion too, or Ikonia's suggestion. There's some on SCAN that look to be supported as well. I was hoping for a fairly inexpensive alternative but looks like we have to shell out. Ah well: glad that HDD's cost less nowadays

    Thanks lads!
    Check my project <<| Black3D |>>
    Quote Originally Posted by hexah
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    Comfortably Numb directhex's Avatar
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    Quote Originally Posted by kempez View Post
    Aye we've come to that conclusion too, or Ikonia's suggestion. There's some on SCAN that look to be supported as well. I was hoping for a fairly inexpensive alternative but looks like we have to shell out. Ah well: glad that HDD's cost less nowadays

    Thanks lads!
    you can be inexpensive and use software raid

    the problem is that hardware raid controllers are *expensive*

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    Quote Originally Posted by directhex View Post
    you can be inexpensive and use software raid

    the problem is that hardware raid controllers are *expensive*
    Ye we could do but one of the servers has a sucky mobo so not sure *if* it has SATA ports on it. I think it may have. If it does then ye mebbe we'll go for Linux software RAID and lose a small amount of speed...but gain somewhat in our pockets
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    Quote Originally Posted by hexah
    Games are developed by teams of talented people and sometimes electronic arts

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    Agent of the System ikonia's Avatar
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    you may actually find it perfoms better than hardware raid in a lot of situations. So you won't lose any "speed".
    It is Inevitable.....


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    Quote Originally Posted by ikonia View Post
    you may actually find it perfoms better than hardware raid in a lot of situations. So you won't lose any "speed".
    Excellent. Still trying to get the stuff together - will let you guys know when it's done
    Check my project <<| Black3D |>>
    Quote Originally Posted by hexah
    Games are developed by teams of talented people and sometimes electronic arts

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    Fried Chip Extremist alsenior's Avatar
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    the problem is that Linux 2.4 doesn't have a whole lot of support for sata. there are only a few controllers that are supported.
    Quote Originally Posted by Jay View Post
    What kind of emergency would need Windows 95? I think you are already in a bad state of emergency when your backup plan is Windows 95.
    Beginners guide to raid Beginners guide to raid post edition Hexus.Social - FAQ

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    Quote Originally Posted by alsenior View Post
    the problem is that Linux 2.4 doesn't have a whole lot of support for sata. there are only a few controllers that are supported.
    indeed

    and even with 2.6, a number of popular cards (e.g. lsi megaraid sata) aren't in until 2.6.10

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