From: Paul van der Vlis <paul@vandervlis.nl>
To: linux-raid@vger.kernel.org
Subject: Re: Good hardware for mdadm
Date: Fri, 29 Aug 2014 23:47:02 +0200 [thread overview]
Message-ID: <ltqscm$qp5$1@ger.gmane.org> (raw)
In-Reply-To: <CAH3kUhH=ZdfRtMw+FiRz4c7qkt8UgbHuoTKiUKyq5Uu9AxHBsQ@mail.gmail.com>
Hi Roberto,
op 29-08-14 22:44, Roberto Spadim schreef:
> i use two or more boot disks, if the first raid1 disk don't boot bios
> go to second boot disk, third, etc etc,
In my opinion this only works when the boot-disk is completely defect or
removed. Not when the data in the MBR on that boot-disk is corrupt.
Or did you test this, or do you have other reasons to believe that your
bios will handle this correct?
With the boot-disk I mean the disk what's in the bios the first disk. So
this could also be the second raid1 disk. Or an USB stick.
> you must write grub to mbr of each disk
Of course.
With regards,
Paul van der Vlis.
> i'm using dell server r410 if i'm not wrong
>
> 2014-08-29 17:31 GMT-03:00 Paul van der Vlis <paul@vandervlis.nl>:
>> Hello,
>>
>> I like mdadm and I am using it many years. But in my opinion it has one
>> disadvantage: when the MBR of the boot-disk is corrupt, the machine will
>> not boot.
>>
>> A bios could check this. Wait for some kind of signal from Grub or
>> Linux, and after a timeout boot from another disk. But I don't know
>> about a bios with that feature.
>>
>> A PCIe card could do something like that, but I don't know about such a
>> PCIe card.
>>
>> Is there such hardware?
>> What do you do to avoid this problem?
>>
>> With regards,
>> Paul van der Vlis.
>>
>>
>>
>>
>> --
>> Paul van der Vlis Linux systeembeheer, Groningen
>> http://www.vandervlis.nl/
>>
>> --
>> To unsubscribe from this list: send the line "unsubscribe linux-raid" in
>> the body of a message to majordomo@vger.kernel.org
>> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
>
>
--
Paul van der Vlis Linux systeembeheer, Groningen
http://www.vandervlis.nl/
next prev parent reply other threads:[~2014-08-29 21:47 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-08-29 20:31 Good hardware for mdadm Paul van der Vlis
2014-08-29 20:44 ` Roberto Spadim
2014-08-29 21:47 ` Paul van der Vlis [this message]
2014-08-29 21:52 ` Adam Talbot
2014-08-30 8:25 ` Paul van der Vlis
2014-08-29 22:38 ` Roger Heflin
2014-08-30 8:35 ` Paul van der Vlis
2014-08-30 9:53 ` Roger Heflin
2014-08-30 10:37 ` Paul van der Vlis
2014-08-30 15:56 ` Brad Campbell
2014-08-30 0:44 ` Roberto Spadim
2014-08-30 8:45 ` Paul van der Vlis
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