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<H1>[Mageia-dev] Why is AHCI statically compiled into kernel?</H1>
<B>Thomas Backlund</B>
<A HREF="mailto:mageia-dev%40mageia.org?Subject=Re%3A%20%5BMageia-dev%5D%20Why%20is%20AHCI%20statically%20compiled%20into%20kernel%3F&In-Reply-To=%3C5136372F.7080107%40mageia.org%3E"
TITLE="[Mageia-dev] Why is AHCI statically compiled into kernel?">tmb at mageia.org
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<I>Tue Mar 5 19:19:27 CET 2013</I>
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<PRE>R James skrev 5.3.2013 19:53:
><i> On Tue, Mar 5, 2013 at 11:11 AM, Colin Guthrie <<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">mageia at colin.guthr.ie</A>
</I>><i> <mailto:<A HREF="https://www.mageia.org/mailman/listinfo/mageia-dev">mageia at colin.guthr.ie</A>>> wrote:
</I>><i>
</I>><i> Anything that relies on ordering is just broken by design. We need to
</I>><i> handle things gracefully regardless of the order they are detected. This
</I>><i> is why UUIDs are the defacto method for filesystem identification these
</I>><i> days and why in mga4 we'll likely switch to a consistent naming scheme
</I>><i> for networking devices too.
</I>><i>
</I>><i>
</I>><i> Yes, I understand that cryptic-looking UUIDs are the defacto identifiers
</I>><i> but when mdadm reports that /dev/sdf1 has failed in a parity RAID setup,
</I>><i> it will be good if a mere mortal can know which drive to replace. :o)
</I>
If you follow raid devel list you will soon learn that they dont
recommend trusting the /dev/sd* naming either as it is by
no means static... :)
depending on your hw, they may for example hange place if you happend
to have a usb disk plugged at boot and so on.
so the thing to check is for example what disk is mapped as
/dev/disk/by-id/*
where you can match on actual disc serial number and so on...
then you can be sure wich disk is failing / has failed...
--
Thomas
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