Patching

ZDM ships frequent one-off patches, and Oracle Support will generally ask for the current patch level before troubleshooting any migration issue — so keeping a ZDM host patched isn’t optional maintenance, it’s a prerequisite for getting help when something goes wrong mid-migration. This walks through patching an existing install from 21.6.0 to 21.6.3. Prerequisites At least 15 GB free storage — the patch process backs up the existing ZDM_HOME and ZDM_BASE before applying anything, and those backups land in the directory you run the patch from. The zdmuser account needs write access to the path passed as ziploc. No active migration jobs should be running against this ZDM host during the patch — check zdmcli query job first if you’re not sure. Step 1: Check the Current Version Always confirm the starting point before patching — it’s the only way to be certain the patch actually did something afterward: ...