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Re: IBM DS 8300 SAN reporting different LUN friendly name than CentOS.

On Thu, Oct 22, 2009 at 11:19:42AM -0200, Andre Felipe Machado wrote:
> Hello,
> I found at the final section of [0] , tips and tricks, item 1.1 the following
> "Persistent device names: The names (uid_names or mpath names or alias names)
> that appear in /dev/mapper are persistent across boots, and the names dm-, dm-1
> etc., can change between reboots. So, it is advisable to use the device names
> that appear under /dev/mapper and avoid using the dm-? names."
> So, I "guess" that the previously cited differences between friendly names was
> due to different machines booting.
> Is it a correct assumption?

What I do :
- make an alias in /etc/multipath.conf for the UUID
- use the /dev/mapper/"alias" that is generated by multipath

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