Help, multipath test issue!!!

Help, multipath test issue!!!

[Yin, Hu]

Hi,

Now I intend to test multipath devices using udev. I have installed libdevmapper, libsysfs, 2.6.5-udm2 patch and multipathd-tools in extras directory of udev.
The hardware situation is: a pc with 2 Fiber Channel Port Card and a Fiber Channel disk array. 

Now I can get two devices corresponding to the same physical disk, for example, /dev/sdb, /dev/sdh,
And I also can create a multipath device /dev/md0 using command "mdadm -C /dev/md0 -lmp -n2 /dev/sdb1 /dev/sdh1" successfully,

The udev rules I used is as following:
KERNEL="md[0-9]*", PROGRAM="/sbin/devmap_name %M %m",NAME="%k", SYMLINK="%c"

I fork udev like this:
	export DEVPATH=block/md0
	export ACTION­d
	/sbin/udev block

But the test failed. The error is "No device founded" when udev calls /sbin/devmap_name %M %m.

Does anybody do this kind of test before?

How can I do now? What should I do next? Can you tell me? Thank your very much! It's very urgent, hope you all help me!

Best Regards,
 
Nick ( Yin Hu )



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RE: Help, multipath test issue!!!

[Nick Yin]

Anybody can answer me? Thank you for your help in advance!

BTW, how to use the multipathd-tools in extras directory? Anybody can give 
us a short introduction?
Thanks!

Nick

>From: "Yin, Hu" <hu.yin@intel.com>
>To: <linux-hotplug-devel@lists.sourceforge.net>
>CC: "Kay Sievers" <kay.sievers@vrfy.org>, <greg@kroah.com>
>Subject: Help, multipath test issue!!!
>Date: Tue, 20 Apr 2004 12:55:08 +0800
>
>Hi,
>
>Now I intend to test multipath devices using udev. I have installed 
>libdevmapper, libsysfs, 2.6.5-udm2 patch and multipathd-tools in extras 
>directory of udev.
>The hardware situation is: a pc with 2 Fiber Channel Port Card and a Fiber 
>Channel disk array.
>
>Now I can get two devices corresponding to the same physical disk, for 
>example, /dev/sdb, /dev/sdh,
>And I also can create a multipath device /dev/md0 using command "mdadm -C 
>/dev/md0 -lmp -n2 /dev/sdb1 /dev/sdh1" successfully,
>
>The udev rules I used is as following:
>KERNEL="md[0-9]*", PROGRAM="/sbin/devmap_name %M %m",NAME="%k", 
>SYMLINK="%c"
>
>I fork udev like this:
>	export DEVPATH=block/md0
>	export ACTION­d
>	/sbin/udev block
>
>But the test failed. The error is "No device founded" when udev calls 
>/sbin/devmap_name %M %m.
>
>Does anybody do this kind of test before?
>
>How can I do now? What should I do next? Can you tell me? Thank your very 
>much! It's very urgent, hope you all help me!
>
>Best Regards,
>?>Nick ( Yin Hu )
>
>
>
>-------------------------------------------------------
>This SF.Net email is sponsored by: IBM Linux Tutorials
>Free Linux tutorial presented by Daniel Robbins, President and CEO of
>GenToo technologies. Learn everything from fundamentals to system
>administration.http://ads.osdn.com/?ad_id\x1470&alloc_id638&op=click
>_______________________________________________
>Linux-hotplug-devel mailing list  http://linux-hotplug.sourceforge.net
>Linux-hotplug-devel@lists.sourceforge.net
>https://lists.sourceforge.net/lists/listinfo/linux-hotplug-devel

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