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Zero Downtime Migration Patching

This article shows how to patch the Zero Downtime Migration software from 21.4.1 to 21.4.4.

Prerequisites​

Make sure the following prerequisites are met:

  • Make sure you have enough free storage space available as there will be a backup of the previous ZDM home created (at least 15GB).
  • The zdm o/s user needs to have read/write access to the path specified in the ziploc parameter.

Check Current Version​

Check the current version and build date with the following command:

$ZDM_HOME/bin/zdmcli -build
Example output of zdmcli -build
version: 21.0.0.0.0
full version: 21.4.0.0.0
patch version: 21.4.1.0.0
label date: 221207.25
ZDM kit build date: Jul 31 2023 14:24:25 UTC
CPAT build version: 23.7.0

The current version in this output is 21.4.1 (patch version).

Patching​

  1. Download the latest Zero Downtime Migration software patch from My Oracle Support: Patch 33509650: ZDM PATCH USING MOS

    tip

    Make sure you select the correct Release like Zero Downtime Migration 21.4.1.0.0 when you are patching ZDM 21.4

  2. Copy the downloaded zip file to your zdm server to a directory owned by the zdm o/s user for example /u01/zdm/zdmpatch

  3. Unzip the software zip file and cd into that new extracted directory

  4. Update the ZDM service To update the current ZDM service, execute the zdminstall.sh from the unzipped software directory:

    caution

    The zdm update needs to be run from outside of the current $ZDM_HOME

    ./zdminstall.sh update oraclehome=$ZDM_HOME ziploc=$PWD/zdm_home.zip

    ziploc is the location of the compressed zdm zip file (zdm_home.zip) included in the downloaded software file. For example: /u01/zdmuser/zdmpatch/ZDMKIT

    note

    The backup for the ZDM_BASE and ZDM_HOME will also be created in the unzipped software directory from which the zdminstall.sh:

    • oldbase.zip
    • oldhome.zip

  5. Start the ZDM service

    $ZDM_HOME/bin/zdmservice start

Verify Patching​

  • Check the status of the ZDM service:
$ZDM_HOME/bin/zdmservice status
Example output of zdmserivce status
---------------------------------------
    Service Status
---------------------------------------

 Running:       true
 Tranferport:
 Conn String:   jdbc:mysql://localhost:8899/
 RMI port:      8897
 HTTP port:     8898
 Wallet path:   /u01/zdmuser/zdmbase/crsdata/mdcioggzdm/security
  • Check the ZDM version:
$ZDM_HOME/bin/zdmcli -build
Example output of zdmcli -build
version: 21.0.0.0.0
full version: 21.4.0.0.0
patch version: 21.4.4.0.0
label date: 221207.27
ZDM kit build date: Feb 02 2024 04:35:59 UTC
CPAT build version: 23.12.0

ZDM was updated to 21.4.4 as shown in the third line in this example output.