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Date: Mon, 4 Jan 2010 14:17:24 +0100
Message-ID: <29ae894c1001040517sa6bb7f9v56915a22a820d2c4@mail.gmail.com>
From: brem belguebli <brem.belguebli@gmail.com>
Subject: Re: [linux-lvm] LVM preference for multipath verses disk/by-id/scsi
Reply-To: LVM general discussion and development <linux-lvm@redhat.com>
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To: LVM general discussion and development <linux-lvm@redhat.com>

Hi,

Never had no problem with it.

The only problem I've hit was due to the binding file being, by
default, located in /var/lib/multipath, which is in my setup on a
separate LV than /, during boot time the devices were not correctly
created.

Just had to switch the binding file to /etc and now no more problem.

extract of my /etc/multipath.conf :


defaults {
...
        flush_on_last_del       yes
        user_friendly_names     yes
        bindings_file "/etc/multipath_bindings"
}

2010/1/4 Bryn M. Reeves <bmr@redhat.com>:
> On Wed, 2009-12-30 at 12:52 +0100, brem belguebli wrote:
>> Hi,
>>
>> see man 5 lvm.conf there is an option called preferred_names which is
>> well explained
>>
>> It'll instruct lvm to use the preferred_names you configured in the
>> lvm.conf file if they exist
>>
>> ie : preferred_names = "/dev/mpath/" will use /dev/mpath/XXX instead
>> of /dev/mapper/XXX
>
> It's best not to use the symlinks in /dev/mpath - they are not always
> reliable. Use the device nodes created in /dev/mapper instead.
>
> Regards,
> Bryn.
>
>
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