RE: Hi Hertha/Gerrard/anyone, SAN disk partitions device files changes with each reboot

Hi
I am not 100% certain myself.

I have config similar to this in our multipath.conf file:
multipaths {
multipath {
wwid 350002ac0xxxxxxx
alias authdb-storage
}
}

This ensures that the "friendly" names found in /dev/mpath and
/dev/mapper always stays the same.

I have personnally used /dev/mapper because that is the "kitchen sink"
for all devices and more generic than using /dev/mpath.

When I then create the lvm stuff it would something like this:
pvcreate /dev/mapper/<alias-name>

I know it is not a definitef answer but do hope it helps. Maybe someone
else with more san expierence and linux internal knowledge can help
clear up the matter.

Regards

-----Original Message-----
From: redhat-list-bounces@xxxxxxxxxx [mailto:redhat-list-
bounces@xxxxxxxxxx] On Behalf Of sunhux G
Sent: 27 May 2008 10:12
To: General Red Hat Linux discussion list
Subject: Re: Hi Hertha/Gerrard/anyone,SAN disk partitions device files
changes with each reboot

Hi Gerrard,

So ultimately which one should we use?
/dev/mapper/... or ...

My apologies, I'm a bit confused after reading
the reply

Guess I have to read up more about this at
http://www.redhat.com/docs/en-
US/Red_Hat_Enterprise_Linux/5.2/html/DM_Multipath/index.html
which you gave me previously but haven't got a chance.


Thanks
Goh

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