[Linux-cluster] scsi_watchdog

[isplist at logicore.net]

The scsi_watchdog.conf was added to all of my nodes when I did a yum update on 
all nodes connected to this cluster. I'm not even sure why it's in the 
/etc/cluster directory and I don't use standard SCSI since I'm using fibre 
channel. 

I'm now suspecting that what ever this is, it is the cause of my web server 
slow down's. I can't seem to find much about this so thought I should ask.

Mike


On Wed, 21 Nov 2007 10:31:32 -0600, Ryan O'Hara wrote:
> isplist at logicore.net wrote:
> 
>> I didn't notice that something had changed until now after I upgraded all
>> of
>> the nodes. I see in /etc/cluster the following;
>> 
>> -rw-r-----   1 root root  1249 Nov 10 18:40 .cluster.conf
>> -rw-r-----   1 root root  1249 Nov 13 09:50 cluster.conf
>> -rw-r--r--   1 root root    34 Aug 30 17:55 scsi_watchdog.conf
>> 
>> Since that update, the web nodes have been VERY slow, sluggish, barely
>> responding at times to web requests.
>> 
>> Could that be related to this? I am not finding a whole lot about this  
>> on the
>> net?
>> 
> What changed?
> 
> scsi_watchdog.conf should have no effect. It isn't even uses unless you
> configure watchdog (softdog) support for scsi reservations.
> 
> Ryan