[ML-General] hardware RAID

[Brian Oborn]

On Tue, Jun 16, 2015 at 10:49 AM, WebDawg <webdawg at gmail.com> wrote:

>
>
>> I would highly recommend not using any FakeRAID with Linux. I've done it
>> before (in order to dual-boot a workstation) and it was a real pain. If
>> you're going hardware RAID, fine. But if you're going to do it all in
>> software, you might as well just use the mdadm in the normal manner (it's
>> really not that hard) and it will be more resilient if you need to move it
>> to a new machine. The few bits in the ROM that the FakeRAID gives you
>> really do nothing helpful.
>>
>>
>>
> My primary concern is how the bios or Grub would handle a corrupt/failed
> boot loader?
>
> I have had systems with mdadm/dual bootloaders and such and I have seen
> bios's try and boot a failed drive and just sit there.
>
> I have seen bios boot a corrupt boot partition and really screw things up
> too.  At least I think that was the problem at the point.
>
> Sure once the system is booted mdadm can handle a bad disk or what not.
>
> But what exists to handle a bad /boot or bad bootloader, etc.  The stuff
> that is not protected by mdadm.
>

It's not that hard. You just need to have the grubinstall itself on both
drives. The bootloader part of the drives is not mirrored, but whenever
grub updates it just writes itself to both of them.
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.makerslocal.org/pipermail/general/attachments/20150616/cef130f8/attachment.html>