paths scsi names persistence after rescan

[bencer at cauterized.net]

On Wed, 01 Jun 2011 15:37:44 -0400, "Peter M. Petrakis"
<peter.petrakis at canonical.com> wrote:
> 
> One thing that bugged me about your multipath.conf
> 
> blacklist {
>>     devnode "sda"
>>     devnode "^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*"
>>     devnode "^hd[a-z][[0-9]*]"
>>     devnode "^cciss!c[0-9]d[0-9]*[p[0-9]*]"
>> }
> 
> I'd rather see:
> 
> devnode "^sda[0-9]*"
> 
> beyond that it looks OK.

agreed, fixed.

> 
> So to debug this we'll need to see:
> - contents of /dev/disk
> - udevadm monitor > udev.log
> - stop multipathd and run it in the foreground to capture logging

http://paste.ubuntu.com/616565/

> * service multipath-tools stop
> * multipathd -v4 -d > mpd.log

http://paste.ubuntu.com/616561/

> 
> You haven't modified or added any udev rules have you?
> Also do you have anything like dmraid or LVM running?

I run LVM: http://paste.ubuntu.com/616563/

Thanks for you help!