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DLP Version and Server OS Upgrade

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I need a solution

Hello all , I have a requirement to complete and I Would like all of you to give me your suggestions , recommendations to achieve it succuesfully. 

Currently following is the DLP infrastructure . Its a three tier infrastructure running 12.0.1 and on linux with the following:

Requirement is to upgrade DLP to 12.5.1 and RHEL OS 

  • Enforce server 12.0.1 running linux
  • Oracle DB running on a diffrent machine with the supported version 
  • 2 Network Monitor running on linux
  • 3 EDP servers
  • Network Discover/protect
  • Network Prevent Web
  • Network Prevent Email

all of the detection and enforce server are on RHEL 4.4./4.5.  Now the requirement is to upgrade DLP to 12.5.1 and also upgrade the RHEL OS to either 6.4/6.5.  So I am wondering what is the best ans most optimal way to achieve it. following is the POA which comes into my mind please suggest

Scenerio1:

  1. Upgrade all of detection servers and enforce  from 12.0.1 > 12.5 > 12.5.1
  2. Once upgrade is succuesful then upgrade the RHEL OS either to 6.4/6.5 
  3. If I upgrade the RHEL OS to 6.4/6.5 would it have any adverse effect on DLP application after upgrading it to latest version ?

Scenerio2:

  1. Arrange new linux machines already runing RHEL 6.5 
  2. restore all detection servers and enforce server on these new boxes
  3. Once the restore part is done then upgrade DLP 12.0.1 to 12.5 and then to 12.5.1 
  4. Would doing it this way would it break the application or cause any major issue ? 

Now here is the strange part which is a bit confusing 

DLP 12.0.1 officially supports RHEL 5.6- 5.9

DLP 12.5 officially supports RHEL 5.7 - 5.10 and 6.4/6.5

So if I go with the restoration part then wouldn't DLP 12.0.1 have any compatability issues with RHEL 6.4/6.5 ?

Secondly can I upgrade the OS in scenerio 1 would it break the application if I upgrade the OS 

so keeping these two aspects into consideration which scenerio is more feasible to do to accomplish the requirement and if any 1 has some better idea to achieve the requirement then please share it with me.

Thanks


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