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

[berthiaume_wayne 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.

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From: linux-cluster-bounces redhat com [mailto:linux-cluster-bounces 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 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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