[Linux-cluster] DLM Problem

[Brian Kroth]

jr <johannes.russek at io-consulting.net>:
> Am Donnerstag, den 31.01.2008, 19:29 -0600 schrieb isplist at logicore.net:
> 
> > I've not looked into this yet so don't know what to edit or add. 
> > 
> > On one node, the drive is /dev/sda, but on some nodes, it'll be sdx because 
> > some of the machines already have SCSI drives in them. Not hard to see, just 
> > have to keep it in mind since I'm assuming each machine needs this file.
> > 
> > I see a catch all ( sd*[!0-9] ) but don't know where I need to put say 
> > /dev/sda.
> 
> okay, i'll try to help as far as i can with my nonexistant udev rules.
> the catchall is there because you *don't* know which scsi disk it is,
> wether it is sda, sdb or whatever. 
> however, the DISK does have a unique serial number (even raid slices do)
> or at least a WWN.
> so you basically need to find out which unique number your unique disk
> has (by using /sbin/scsi_id -p 0x83 -g -u -s /block/sda), tell that the
> udev system and let it create a symlink you name whatever you like. this
> way, every node get's a symlink with the same name for the same disk,
> whatever the state of it's device enumeration is. 

That's all correct.

> oh, any udev gurus.. i suppose udev uses page 0x83 rather then 0x80, is
> that correct? 

I'm no guru, but I've never had to specify -p before.  The rest is what
I've used:

scsi_id -g -u -s /block/sd?

Brian
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