 |
Title: FreeBSD 11 and Perc H720P Mini raid controller |
|
Author: Solène |
|
Date: 25 May 2016 |
|
Tags: freebsd11 hardware |
|
Description: |
|
|
|
I had a problem with my 3 latests R430 Dell server which all have a |
|
PERC H730P Mini raid controller. The installer could barely works and |
|
slowly, and 2 servers were booting and crashing with FS corruption |
|
while the latest just didn't boot and the raid was cleared. |
|
|
|
It is a problem with a driver of the raid controller. I don't |
|
understand exatly the problem but I found a fix. |
|
|
|
From man page mfi(4) |
|
|
|
attaching |
|
to a card. By default the driver will attach to all known cards |
|
with |
|
high probe priority. If the tunable hw.mfi.mrsas_enable is set to |
|
1, |
|
then the driver will reduce its probe priority to allow mrsas to |
|
attach |
|
to the card instead of mfi. |
|
|
|
In order to install the system, you have to set |
|
**hw.mfi.mrsas_enable=1** on the install media, and set this on the |
|
installed system before booting it. |
|
|
|
There are two ways for that: |
|
|
|
- if you use a usb media, you can mount it and edit /boot/loader.conf |
|
and add `hw.mfi.mrsas_enable=1` |
|
- at the boot screen with the logo freebsd, choose **3) Espace to boot |
|
prompt**, type `set hw.mfi.mrsas_enable=1` and **boot** |
|
|
|
You will have to edit /boot/loader.conf to add the line on the |
|
installed system from the live system of the installer. |
|
|
|
I have been struggling a long before understanding the problem. I hope |
|
this message could save time to somebody else. |
|
|
|
