2 Messages


80 Points

Mon, Jul 19, 2021 5:28 AM

How to downgrade dataplane SZ144-D

I want to downgrade a SZ144-D dataplane from to

Apparently there is no way to upload older firmware directly to the dataplane; only upgrade is available and trying to downgrade to an older version with upgrade commands leads to "Upgrade Fail".

So, I wanted to try cluster restore but the cluster doesn't have a backup of 5.2.2.x or older version of its own.

I have tried copying 5.2.1.x version backup of another cluster to a cluster with 5.2.2.x version from FTP server and restoring but it says the external backup do not allow the restore from different major version.

So, I tried copying and restoring with another cluster of same 5.2.1.x version as the backup and now it says it doesn't allow restoring the whole cluster by external backup and proceeding leads to restoring only the controller I have uploaded the backup.

Is there any other method I could try for downgrading the dataplane?


Official Rep


1.1K Messages


15.8K Points

14 d ago

Hi There,

Is it SZ144-D (Data plane) or you are referring to SZ144 controller?

If this is Dataplane, then backup will have nothing than IP configuration on it.

Factory reset the Data plane, downgrade it to desired version using CLI and then connect back to your physical or virtual SmartZone.

Downgrade is not an option if you don't have a cluster backup or configuration backup from each node (if it is a multi node cluster).

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