+1 for Oliver’s suggestion – you would run into a lot of issues trying to 
upgrade from 6.5 to 7, you are much better off simply building a new CentOS7 
management server and pointing this at your existing database before 
decommissioning your old 6.5 server.

Just keep in mind to *not* use the “deploy-as” option with 
cloudstack-setup-databases – simply use the instructions for “additional 
management servers” in 
http://docs.cloudstack.apache.org/projects/cloudstack-installation/en/4.9/management-server/index.html#additional-management-servers
 . It’s also a good idea to back up your databases beforehand.

Regards,
Dag Sonstebo
Cloud Architect
ShapeBlue

On 15/07/2017, 09:35, "Oliver Dzombic" <i...@ip-interactive.de> wrote:

    Hi,
    
    upgrades where runlevel management significantly changes is always
    connected with a lot that can go wrong.
    
    Its not as worst as upgrading an older ubuntu to ubuntu 16, but you
    might end up being forced to replace the node.
    
    Its suggestable that you simply create fresh centos 7 and migrate the
    services.
    
    But in the very end, centos 6 has still some years left of update
    maintenance. So as long as you dont run into any compatibility issues,
    where you need centos 7 with its newer versions, you should stay with
    your centos 6.
    
    -- 
    Mit freundlichen Gruessen / Best regards
    
    Oliver Dzombic
    IP-Interactive
    
    mailto:i...@ip-interactive.de
    
    Anschrift:
    
    IP Interactive UG ( haftungsbeschraenkt )
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    Am 15.07.2017 um 08:25 schrieb Makrand:
    > Hi Gaith,
    > 
    > CentOS 7 is significantly different than 6. e.g. 7 uses systemD. There are
    > a lot of other changes as well. Speaking purely from OS upgrade POV, I
    > think you will run into lots of issues after the upgrade.
    > 
    > From ACS POV, I don't see any major difference or advantage. (although I 
am
    > not very about this)
    > 
    > --
    > Makrand
    > 
    > 
    
dag.sonst...@shapeblue.com 
www.shapeblue.com
53 Chandos Place, Covent Garden, London  WC2N 4HSUK
@shapeblue
  
 

> On Fri, Jul 14, 2017 at 11:23 PM, Ghaith Bannoura <gbanno...@etq.com> wrote:
    > 
    >> Hello All,
    >>
    >> I have ACS 4.9.2 Advanced Zone with xen server 6.5 the management server
    >> is Centos 6.5 , is there any benefits / enhancement to upgrade it to 
CentOS
    >> 7
    >>
    >> Best Regards,
    >> Ghaith Bannoura
    >>
    > 
    

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