[Linux-cluster] problems with iscsi storage and boot order

[berthiaume_wayne at emc.com]

Try inserting a delay into the iscsi init script in the beginning of the
start clause. Depending on the delays in your netwrok and the NIC
drivers being used I've found values of between 30 and 60 seconds worked
for me. 
 
Regards,
Wayne.

________________________________

From: linux-cluster-bounces at redhat.com
[mailto:linux-cluster-bounces at redhat.com] On Behalf Of Randy Brown
Sent: Tuesday, October 23, 2007 11:40 AM
To: linux clustering
Subject: Re: [Linux-cluster] problems with iscsi storage and boot order


I have tried both suggestions.  I added the line:
node.session.initial_login_retry_max = 8
I even made the value as high as 20 with no change during boot up.  Then
I added NETWORKDELAY=20 to /etc/sysconfig/network and I still see:
iscsiadm: Could not login session (err 4)
iscsiadm: initiator reported error (4 - encountered connection failure)

when I boot the machine.  After the machine as booted, I restart iscsi,
clvmd, and gfs and everything works.  Sometimes I hate computers.

Thanks,
Randy

Bryn M. Reeves wrote: 

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	gordan at bobich.net wrote:
	  

		On Mon, 22 Oct 2007, Randy Brown wrote:
		
		    

			Thanks, I'll try upping the retries.  I am
assuming this is the same
			thing as increasing the time value here:
			      

		No. Timeouts and retries are separate settings. The
problem is usually
		that the iSCSI subsystems tries to access the SAN before
the network has
		fully come up.
		
		    

	
	You can also tweak the network delay setting in
/etc/sysconfig/network.
	Set the variable NETWORKDELAY to a value (in seconds) and the
network
	scripts will sleep for this period of time after bringing all
interfaces
	up. This should allow time for your network to be fully up
before the
	iscsi service starts.
	
	Regards,
	Bryn.
	
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