[Dune] Attention : conan upgrade + downtime!

[Joachim Simon]

Dear group, dear users,

security support of Conans debian lenny will end at 6th of february 2012.
Therefore it's necessary to perform an upgrade from debian lenny to 
debian squeeze.

1)

Preceding I want to perform a test upgrade in a virtual environment 
(KVM) simultaneously
performing a physical to virtual migration of conan (about 3.6TB data) - 
this may take a while!

*** For this reason Conan is not available for normal work this weekend 
from 20-22th of january:  friday 5pm to sunday 10pm! ***

During this operation there **may be a short timeframe** where users 
will be able to login to "virtual machine conan".
Attention: If so, all work done at conan this weekend will be lost after 
I switched back to "physical conan".
Conclusion: Don't try to perform work in relation with conan at this 
weekend!

If test upgrade is finished and "physical conan" is available again for 
normal work I will announce it.

2)

Real upgrade of "physical conan" will be done at 27-29th of january 
**OR** 3-5th of february.
Next week I will announce it in detail.


-- 
Mit freundlichen Grüßen

Dipl-Phys. Joachim Simon
Email: joachim.simon at iwr.uni-heidelberg.de
Fon: +49 (0)6221 54-8865 [8893]
Fax: +49 (0)6221 54-8884

IWR Universität Heidelberg
Forschungsgruppe Paralleles Rechnen
4. OG, Zi. 423
Im Neuenheimer Feld 368
69120 Heidelberg