Hardware RAID installation issues

Help with issues regarding installation of Debian

Hardware RAID installation issues

Postby senis » 2019-05-15 15:49

Hello All,
I am trying to install Debian on Dell Precision Workstation T3500. The RAID hard drives (volume) is not visible during installation. I've tried non-free installation package as well but it is still not visible. Any suggestions?
Thank you.
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Re: Hardware RAID installation issues

Postby wizard10000 » 2019-05-15 15:58

we see things not as they are, but as we are.
-- anais nin
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Re: Hardware RAID installation issues

Postby senis » 2019-05-16 02:16

SOLVED! Just wanted to confirm it worked. Thank you for the link.
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Re: Hardware RAID installation issues

Postby p.H » 2019-05-16 10:58

SATARAID (aka fakeRAID) is not hardware RAID and is not well supported. You should consider using Linux software RAID instead.
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Re: Hardware RAID installation issues

Postby senis » 2019-05-16 18:57

Allright... So I did some reading about RAID implementations and the one I've got is a Fake RAID thus the OS still needs to support it.
Is there anything I should have in mind (avoid) creating software RAID without ECC RAM? The machine will be used as a media server and I prefer one large volume (RAID 0).
Thank you.
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Re: Hardware RAID installation issues

Postby p.H » 2019-05-17 10:58

I would not use a RAID 0 array for the system. If anything goes wrong for some reason and the array fails to be assembled, the system won't boot at all. Linux RAID members can be partitions, so you can create a RAID 1 array for the system and RAID 0 array for the data on the same set of disks.
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Re: Hardware RAID installation issues

Postby dotlj » 2019-05-18 04:24

p.H wrote:I would not use a RAID 0 array for the system. If anything goes wrong for some reason and the array fails to be assembled, the system won't boot at all. Linux RAID members can be partitions, so you can create a RAID 1 array for the system and RAID 0 array for the data on the same set of disks.


+1 agreed
Use two small disks for the system RAID 1 and your larger disks for data RAID0.
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Re: Hardware RAID installation issues

Postby p.H » 2019-05-18 07:02

dotlj wrote:Use two small disks for the system RAID 1 and your larger disks for data RAID0.

I disagree. As I wrote, you can mix multiple RAID types on the same disk set.
More disks = more power, more heat, more cables, more failures...
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