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Sajan_Mania_381's avatar
Sajan_Mania_381
Icon for Altostratus rankAltostratus
Mar 04, 2019
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How do I to rename a Virtual Server/Pool name on a F5 LTM ?

How do I rename a Virtual Server/Pool name on a F5 LTM ?

 

Can you please help me with commands with example .

 

BIG-IP version details : Sys::Version

 

Main Package

 

Product BIG-IP

 

Version 11.6.2

 

Build 1.0.507

 

Edition Hotfix HF1

 

Date Mon Nov 13 18:40:11 PST 2017

 

application delivery
LTM
TMSH
  • Dylan_375544's avatar
    Dylan_375544
    Mar 04, 2019

    HERE is a link explaining that in order to rename VIPS through CLI, you must enable the MV (move) command. I just tested this on Ver 13, and it works the same with Pools. That link references THIS one, which is an official F5 doc and has some good info too.

    Do that by running the command in TMSH

    modify /sys db mcpd.mvenabled value true

    You can then "rename" your VIP by MOVING it to another name

    mv ltm virtual

    Or rename your pool in the same manner

    mv ltm pool

    Then disable the MV command so no mistakes are made later by running

    modify /sys db mcpd.mvenabled value false

    Hope that helps! If it does, please up-vote and select this answer, it would be greatly appreciated!

    -Dylan

    NOTE There is a chance that TMM will restart after that change is made, so be aware of that.

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  • Dylan_375544's avatar
    Dylan_375544
    Icon for Cirrocumulus rankCirrocumulus
    Mar 04, 2019

    HERE is a link explaining that in order to rename VIPS through CLI, you must enable the MV (move) command. I just tested this on Ver 13, and it works the same with Pools. That link references THIS one, which is an official F5 doc and has some good info too.

    Do that by running the command in TMSH

    modify /sys db mcpd.mvenabled value true

    You can then "rename" your VIP by MOVING it to another name

    mv ltm virtual

    Or rename your pool in the same manner

    mv ltm pool

    Then disable the MV command so no mistakes are made later by running

    modify /sys db mcpd.mvenabled value false

    Hope that helps! If it does, please up-vote and select this answer, it would be greatly appreciated!

    -Dylan

    NOTE There is a chance that TMM will restart after that change is made, so be aware of that.

    • Sajan_Mania_381's avatar
      Sajan_Mania_381
      Icon for Altostratus rankAltostratus
      Mar 05, 2019

      Dylan - Thank you .

       

      Can I follow these steps in BIG-IP Version 11.6.2 ?

       

      Enabling --> modify /sys db mcpd.mvenabled value true ( will not cause any issue ? )

       

    • Michael_Saleem1's avatar
      Michael_Saleem1
      Icon for Cirrus rankCirrus
      Mar 05, 2019

      The mv command is supported from v11.5.4 (so v11.6.2 will be supported)

      From past experience, enabling the 

      mcpd.mvenabled
      variable is fine. However, when I renamed an object using the 
      mv
      command, it caused a failover. As such, I would be cautious about using it in a Production environment

      https://support.f5.com/csp/article/K08689048

      Impact

      The BIG-IP system may temporarily stop processing traffic while the TMM service restarts. Systems configured as part of a high availability (HA) pair may fail over to a peer device.

      Important: Currently, the ability to move certain BIG-IP objects to other folders and to rename those objects is an experimental feature. F5 recommends that you disable this feature after you have moved or renamed any BIG-IP objects. Also, use of this feature could result in a loss of statistics and a disruption in BIG-IP GTM service. If you plan to move or rename a virtual server, please contact your BIG-IP GTM administrator before doing so.

      Symptoms As a result of this issue, you may encounter one or more of the following symptoms: • Your BIG-IP system temporarily stops processing traffic when configured to fail over to a peer device. • Your BIG-IP system generates a TMM core file in the /shared/core/ directory. • Your BIG-IP system logs a message to the /var/log/tmm file that appears similar to the following example: notice failed to find pool // notice ** SIGSEGV **

  • RaghavendraSY_7's avatar
    RaghavendraSY_7
    Icon for Cumulonimbus rankCumulonimbus
    Mar 04, 2019

    You can rename virtual server and pool by editing bigip.conf file but you may encounter issues while loading bigip.conf file.

     

    Best way is create one new virtual server with dummy IP and then you just swich over the IP's in off business hours.

     

  • RaghavendraSY's avatar
    RaghavendraSY
    Icon for Altostratus rankAltostratus
    Mar 04, 2019

    You can rename virtual server and pool by editing bigip.conf file but you may encounter issues while loading bigip.conf file.

     

    Best way is create one new virtual server with dummy IP and then you just swich over the IP's in off business hours.