[ale] Sata disk mode query.

[Greg Freemyer]

If your drives are currently /dev/hda, etc. they will change to /dev/sda, etc.

Some people really don't like that because they have configs setup
that depend on the name.

Also /dev/sdX naming is dynamic.  So if you are the type to plug in
drives, etc. from time to time, you need to make sure you don't depend
on your drives being any specific /dev/sdX name.  You can use
mount-by-label etc. to do that, but I admit to finding it more trouble
than its worth and still use /dev/sdX.  I know enough to make it work
in general.

The good news is that both mdraid and LVM tag the disks/partitions
with identifiers, so they don't depend on the /dev/sdX name.

Also, AHCI is effectively a controller spec.

Some implementations are great, others not so great.

What chipset is it?  Once you know, google for issues.

== note
If the MB is from the last 2 or so years, I'd expect good support.

Some of the older stuff is more problematic.

Greg

On Thu, Jan 20, 2011 at 10:13 AM, Jack Schneider <puck at dp-indexing.com> wrote:
> Hi, Alers
> With the pending release of Debian Squeeze I am considering a complete
> O/S reinstall, tons of cruft. My question is: Should I change my MoBo
> disk setup from Pata to Sata AHCI?   I have seen both pros and cons on
> google and Wikipedia.  I have 4 Baracuda 7200 rpm sata drives, raid1 and
> LVM2 used to run VM's. I know there are disk savvy folks here
> with useful opinions and experiences... TIA
>
> Long Lurker
> Jack
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-- 
Greg Freemyer
Head of EDD Tape Extraction and Processing team
Litigation Triage Solutions Specialist
http://www.linkedin.com/in/gregfreemyer
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   http://insession.blogs.cnn.com/2010/03/23/how-computer-evidence-gets-retrieved/

The Norcross Group
The Intersection of Evidence & Technology
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