[Firewire-devel] RE: [Firewire-users] 4 node firewire cluster

[Han Xie]

Thanks Bruce, ours says support 4 as well, but we can't get them all running.  The problem turned out to be an Oracle issue, maybe a bug.  Let's explain.
 
We got a wrong firewire card, and installed CRS, all 4 nodes run OK.  Then I installed Oracle RDBMS and it failed (due to the wrong hardware).  And we un-installed Oracle RDBMS.
 
We replaced the hardware, and can't get more than 2 nodes running at the same time.  (So I asked the question)  Now we found out this is because CSS daemon repeatedly checking the quorum disk and reboot.  We disable the CSS daemon and all 4 nodes are running happily now.
 
Before I installed Oracle RDBMS, CRS on all 4 nodes were running fine.  After I installed Oracle RDBMS (failed), and CRS started checking quorum disk and reboot.  Don't you think this is an Oracle issue?  What triggers CSS to start checking quorum disk?  Why reboot?
 
Cheers.
Han
 

-----Original Message-----
From: Bruce Carter [mailto:bruce.carter at oracle.com]
Sent: Wednesday, 18 May 2005 2:03 PM
To: Han Xie; Richard Ehrsam
Cc: firewire-devel at oss.oracle.com; firewire-users at oss.oracle.com
Subject: RE: [Firewire-users] 4 node firewire cluster


Check /var/log/messages.
 
If it says the dive will support 2 concurrent logins then you can only have two nodes.
 
If it says 4 you can theoretically have 4 nodes although I don;t know of anybody who has done this.
 
Here is an extract from my /var/log/messages
 
 
May 17 07:12:10 ukdh364 kernel: ieee1394: sbp2: Query logins to SBP-2 device successful
May 17 07:12:10 ukdh364 kernel: ieee1394: sbp2: Maximum concurrent logins supported: 4
May 17 07:12:10 ukdh364 kernel: ieee1394: sbp2: Number of active logins: 0
May 17 07:12:10 ukdh364 kernel: ieee1394: sbp2: Logged into SBP-2 device
May 17 07:12:10 ukdh364 kernel: ieee1394: sbp2: Node[00:1023]: Max speed [S400] - Max payload [2048]
 
This is a Lacie 120 GB drive
 
The 911 chipset seems to allow 4 logins.  I have seen this on two different drives
 
My Lacie 250Gb drive has the 912 chipset and only allows 2.
 
I have a Maxtor 250Gb (One Touch II) ready to go in.
 
I will let you know what that says
 
P.S.  My configuration does not seem to decrement the number of logins on the disk if a node powers down or reboots so I only get one cycle of reboots before I have to power the disk off.
 
I also note that on one node powering off the machine powers off the drive as well.
The other node doesn't.
 
I guess this because I have different firewire cards in each box.
 
Regards
 
Bruce
 
 

-----Original Message-----
From: firewire-users-bounces at oss.oracle.com [mailto:firewire-users-bounces at oss.oracle.com]On Behalf Of Han Xie
Sent: 18 May 2005 02:42
To: Richard Ehrsam
Cc: firewire-devel at oss.oracle.com; firewire-users at oss.oracle.com
Subject: RE: [Firewire-users] 4 node firewire cluster


Thanks for the reply Richard, but can you explain your answer please?
 
Do you mean firewire disk can only support 2 nodes?  If so, there is no way to setup a 4 node firewire cluster.
 
Or, do you mean we have got the wrong disk?  Our disk has the chipset 911.  Which disk will support 4 node cluster please?
 
Regards.
Han

-----Original Message-----
From: Richard Ehrsam [mailto:Richard.Ehrsam at oracle.com]
Sent: Wednesday, 18 May 2005 11:10 AM
To: Han Xie
Cc: firewire-devel at oss.oracle.com; firewire-users at oss.oracle.com
Subject: Re: [Firewire-users] 4 node firewire cluster


the hub is not your limitation, rather the disk device.

Han Xie wrote:


Hi, 

We try to setup a 4 node firewire cluster.  The firewire hub seems only support 2 nodes at a time.  I wonder if anyone has setup a firewire cluster with more than 2 nodes.  If so, may I ask what hub hardware is used please?

Thanks in advance and regards. 
Han 



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