Dear All,

The IP transitions are done and it seems that everything works as usual.
There were some outages on svn.crest.iu.edu and git.open-mpi.org for a while 
because the firewall guys missed to open the ports (80 and 443) for these 
hostnames.
They were open at about 10:10 am (E.T.)
I should’ve checked all the ports before taking the action today. I am sorry 
for the unexpected outage.

Please let me know if you find any issues after the IP transition.
  
Regards,

--
- DongInn



On Apr 8, 2014, at 10:01 AM, Kim, DongInn <di...@indiana.edu> wrote:

> Dear All,
> 
> The CREST SVN/trac server machine (tiger.crest.iu.edu) is requested to change 
> its subnet and I am planning to switch its IP address for the change of the 
> subnet.
> 
> I would like to setup the schedule to update the DNS information of the 
> following hostnames in tiger.
> 
> - svn.crest.iu.edu
> - svn.mpi-forum.org
> - svn.open-mpi.org
> - svn.osl.iu.edu
> - svn.oscar.openclustergroup.org
> - svn.scalabletools.org
> - git.open-mpi.org
> 
> The IP transition date and time:
> April 10, 2014
> 6:00am-7:00am Pacific US time
> 7:00am-8:00am Mountain US time
> 8:00am-9:00am Central US time
> 9:00am-10:00am Eastern US time
> 1:00pm-2:00pm GMT
> 
> The list of services that may not be available:
> - Web/SVN services:
> https://svn.crest.iu.edu/svn/*
> https://svn.open-mpi.org/svn/ompi
> https://svn.mpi-forum.org/svn/mpi-forum-web/
> https://svn.open-mpi.org/trac/ompi
> https://git.open-mpi.org/trac/hwloc
> ...
> 
> 
> tiger.crest.iu.edu (129.79.13.91 --> 129.79.39.209)
>    * svn.crest.iu.edu                          IU CS
> 
> tiger-virt1.crest.iu.edu (129.79.13.23 --> 129.79.39.200)
>    * svn.mpi-forum.org                         University of Illionis
> 
> tiger-virt2.crest.iu.edu (129.79.13.24 --> 129.79.39.201)
>    * svn.open-mpi.org                          IU CS
> 
> tiger-virt3.crest.iu.edu (129.79.13.7 --> 129.79.39.205)
>    * svn.osl.iu.edu                            IU CS
> 
> tiger-virt4.crest.iu.edu (129.79.13.9 --> 129.79.39.207)
>    * svn.oscar.openclustergroup.org            IU CS
> 
> tiger-virt5.crest.iu.edu (129.79.13.13 --> 129.79.39.199)
>    * svn.scalabletools.org                     IU CS (?)
> 
> tiger-virt6.crest.iu.edu (129.79.13.10 --> 129.79.39.198)
>    * git.open-mpi.org                          IU CS
> 
> 
> I have already prepared the IP transition on tiger to make the new IP 
> addresses provide the same services on tiger so that I hope that there is no 
> actual outage of the services other than the rebooting time.
> 
> If you happened to use the IP address on your cronjob or programs, please 
> make sure that you switch it with the new one.
> 
> IMPORTANT
> =========================================
> tiger will need to reboot to kick in a new kernel and mount the NFS space 
> with the new IP addresses at the same time.
> ========================================== 
> 
> Please let me know if you have any questions or concerns about this IP 
> transition.
> 
> Regards,
> 
> --
> - DongInn
> 


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