CERN Accelerating science

CVI Hypervisor upgrades March 22nd

 
Description: 

Deployment of Microsoft patches and hotfixes on ~200 Hypervisors in the CVI service,hosting Virtual Machines in the Self-Service as well as in hostgroups dedicated to BE/CO, Engineering Services, IT/GT, DG/CO, EN/ICE, IT/UDS, IT/OIS and IT/CS.

The upgrades will take involve a reboot of the hypervisors. The Virtual Machines hosted on those servers will be automatically suspended into a 'Saved State' and will resume once the hypervisor has restarted (typically within 5 minutes). From the VM perspective this intervention is therefore largely transparent. All Virtual Machines are expected to be back by 08:30.
 
Up-to-date information about which of the hypervisors host which Virtual Machine can be obtained from the VMM website (go to https://vmm.cern.ch -> "Manage my Machines" -> Click on VM name for details -> Look for "VM Host") or from the LANdb Network Database (http://network.cern.ch).
 
The upgrade schedule is:
 
Thursday March 22th :
BE-CO cernvs64 cernvs65 cernvs66 cernvs67            
Eng Serv caevmsrv26 caevmsrv27 caevmsrv28 caevmsrv29 caevmsrv30 caevmsrv31 caevmsrv33 caevmsrv34 caevmsrv35 caevmsrv36
Eng Serv caevmsrv37 caevmsrv38 caevmsrv39 caevmsrv40 caevmsrv41 caevmsrv42 caevmsrv43 caevmsrv44 caevmsrv45 caevmsrv46
Eng Serv caevmsrv47 caevmsrv53 caevmsrv54 caevmsrv55 caevmsrv56 caevmsrv57        
IT-OIS cernvs08 cernvs36 cernvs73 cernvs74 cernvs75 cernvs76 lxbsp0701 lxbsp0702 lxbsp0703 lxbsp0704
IT-OIS lxbsp0705 lxbsp0706 lxbsp0707 lxbsp0708 lxbsp0709 lxbsp0710        

CVI support team

 

 

Specific Service Detail: 
CERN Virtual Infrastructure
Reason for this intervention: 

Installation of security updates and hotfixes in the hypervisors

Effective from date: 
Thursday, March 22, 2012 - 07:00
End date: 
Thursday, March 22, 2012 - 08:30
Service Element Affected: 
Server Hosting Service
Impact on service: 
Service will be available but degraded
Posted by: 
IT-OIS
Unit responsible for resolution: 
IT Department