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I'm currently learning how to manage the storage of a HP proliant dl 180 g5. It has a Smart Array P400 RAID controller which works fine. So I've actually the problem, that I can't see disks which are not in RAID context. HP's Array configuration utility can see all disk, but these not raided disks are not shown to the OS.

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The P400 is a array-management card, all disks have to be in one array or another in order to be visible to the BIOS, you can add them all to one array then create individual R0 logical disks if you want but they probably won't map directly to physical disks unless you spend a lot of time tweaking things. What is it you're actually trying to achieve?

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My plan is that I have a hardware raid for the os (Two 500gb sata with raid 1). For all other disk I want a software raid and on a higher level lvm. So I'm not depedent on the raid controller. –  Wiegand Apr 29 '11 at 11:42
    
But you are, they're connected to the card, they have to be part of one array or another, they can't just be 'passed through'. –  Chopper3 Apr 29 '11 at 11:44
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@Wiegand - Outside of some very specific usage scenarios, you should always be utilizing RAID on server drives. –  Chris Thorpe Apr 29 '11 at 12:48
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What? the data is lost due to a faulty raid controller? what makes you think this? why would software raid be better at this? I think you've got your wires crossed. Looking at your image you've got the raid 1 and raid 1+0 the wrong way around, either way you're better off using the hardware raid controller for the R10, via software your writes will be half the speed as if you used a hardware controller as you'll have to write the data twice. –  Chopper3 Apr 29 '11 at 14:52
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@Weigand; you're running into so many "problems" because you're misunderstanding how the technology works. You might want to get someone involved who knows what they're doing. –  Chris S Apr 29 '11 at 14:58

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