[CentOS] Possible bug with latest 7.3 installer, md RAID1, and SATADOM.

Fri Apr 14 21:48:56 UTC 2017
Cameron Smith <cameron at networkredux.com>

Is there a reason you are not using the built in controller to RAID the

As I remember on SuperMicro there are two controllers. One for the SATADOMs
and another for the conventional disks.


On Fri, Apr 14, 2017 at 2:28 PM, David C. Miller <millerdc at fusion.gat.com>

> I'm seeing a problem that I think maybe a bug with the mdraid software on
> the latest CentOS installer. I have a couple of new supermicro servers and
> each system has two innodisk 32GB SATADOM's that are experiencing the same
> issue. I used the latest CentOS-7-x86_64-1611 to install to the two
> SATADOM's a simple RAID1 for the root. The install goes just fine but when
> I boot off the new install I see one of two behaviours. It either hangs at
> boot, or boots fine but I start getting errors when using the system. For
> example it will give me  the following error if I try to run yum update.
> error: rpmdb: damaged header #6 retrieved -- skipping.
> It will just hang giving that error over and over. I have to use a
> different login session to kill it or reboot. It doesn't even log anything
> to journelctl or /var/log/messages. At first I thought either the hardware
> was the issue(sata port, controller, SATADOM, etc). However, I do not see
> any issues if I don't try to raid the disks. Setting either of the
> SATADOM's up as a single system drive works just fine. It does not matter
> if I choose xfs or ext4 for the filesystem when I try to RAID them either.
> Making an md RAID1 out of the two disks with 7.3 installer is the only
> combination I see this issue with. If I use the previous 7.2
> installer(CentOS-7-x86_64-1511) I don't see the problem at all. I can run
> yum update, reboot, and everything is still ok. I should also point out
> that I tested the CentOS 7.3 installer creating a md RAID1 system drive
> using two regular spinning hard drives and that worked just fine. I was
> wondering if anyone else has seen something similar or can confirm th
>  is problem before I submit it as a real bug..
> TL/DR. Two different supermicro servers, both using innodisk 32GB
> SATADOM's and latest CentOS 7.3 installer to create a RAID1 system results
> in freezes and weird errors. Using the CentOS 7.2 installer works fine.
> David Miller.
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