Re: IBM ServeRAID M5110e and other mfi/mrsas users - call for testing / request for information

On 25/11/2024 21:24, Ed Maste wrote:
> I have a review open to switch to mrsas(4) by default, for devices
> supported by both it and mfi(4). mrsas(4) should be better supported
> and more functional. The review:
>
> https://reviews.freebsd.org/D45476 mfi: default to using mrsas(4) for
> newer cards
>
> However, we have a report of volume corruption with the IBM ServeRAID
> M5110e when used with the mrsas driver:
>
> PR196820 IBM x3650, ServeRAID M5110e, volumes corrupted after boot
> with mrsas driver
>
> Clearly we do not want to corrupt users' RAID volumes, so I would like
> to request feedback from mfi/mrsas users in general, and M5110e users
> in particular.
>
> Note that there may be a possibility of data corruption, so please
> investigate only on test systems.
>
> To test, set the loader tunable hw.mfi.mrsas_enable=1 in
> /boot/loader.conf. Confirm that mrsas is being used, and that the
> system functions properly.
>
I use Dell servers and i set the loader tuneable hw.mfi.mrsasa_enable=1 
on these machines. I use ZFS, so no raid functionality off the card 
itself. This works fine for me. I have not have any issues. I use this 
setting as mrsas give me way nicer device names, i do remember having 
boot issues with the mfi default. But that is a long time ago.