From aldavis at wi.mit.edu  Tue Mar 22 17:14:03 2005
From: aldavis at wi.mit.edu (Al Davis)
Date: Tue, 22 Mar 2005 17:14:03 -0500
Subject: [CSBi-HPC] Whitehead cluster reboot
Message-ID: <424098AB.9000506@wi.mit.edu>

Most of the Whitehead cluster nodes have been up for several months and kernel 
and loadleveler appear to be confused about several things.  I'd like to 
schedule a system wide reboot for Thursday morning @ 8AM to clear things up. 
I'll also reconfigure some of the network connections which allow us to take 
better advantage of the direct links between the two clusters.  This is a 
necessary step before we can finish the cluster merger into one functioning system.

The system will be down for approx 30 min and I can schedule it for another day 
if anyone has some critical jobs that they're doing this week.  Let me know asap 
if this schedule doesn't work for you and I'll push it out till later in the week.

thanks, al
-- 
Al Davis                           aldavis at wi.mit.edu | aldavis at mit.edu
Systems Manager                    617.324.0519
CSBi & WI/MIT BioImaging Center    NE47 Rm 311 (500 Technology Sq)

From aldavis at wi.mit.edu  Wed Mar 23 14:37:19 2005
From: aldavis at wi.mit.edu (Al Davis)
Date: Wed, 23 Mar 2005 14:37:19 -0500
Subject: [CSBi-HPC] access to Whitehad part of the IBM cluster is not
	available
Message-ID: <4241C56F.5020807@wi.mit.edu>

Whitehead suffered a security breach and have turned off all access from outside 
their firewall until they get it under control.  I'll let you know when access 
to the cluster is available again.

al
-- 
Al Davis                           aldavis at wi.mit.edu | aldavis at mit.edu
Systems Manager                    617.324.0519
CSBi & WI/MIT BioImaging Center    NE47 Rm 311 (500 Technology Sq)

From aldavis at wi.mit.edu  Thu Mar 24 14:13:57 2005
From: aldavis at wi.mit.edu (Al Davis)
Date: Thu, 24 Mar 2005 14:13:57 -0500
Subject: [CSBi-HPC] CSBi cluster access is back up
Message-ID: <42431175.5040804@wi.mit.edu>

It looks like we've fixed the problems on both the firewalls, so you should be 
able to ssh into the wi cluster again.  Also loadleveler is back up and working 
and able to submit jobs to all the nodes.

I'm working on a plan to finish the integration of both clusters into one 
system, so stay tuned for updates on that.

Let me know if you have a problem logging into the cluster?

al
-- 
Al Davis                           aldavis at wi.mit.edu | aldavis at mit.edu
Systems Manager                    617.324.0519
CSBi & WI/MIT BioImaging Center    NE47 Rm 311 (500 Technology Sq)