How to fix the Oracle error ORA-19863: device block size string is larger than max allowed: string?

In this post, you’ll learn more about the Oracle ErrorORA-19863: device block size string is larger than max allowed: string with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-19863: device block size string is larger than max allowed: string

Reason for the Error ORA-19863: device block size string is larger than max allowed: string

The user specified a device BLKSIZE that is larger than the device BLKSIZE specified during compressed backup.

How to fix the Error ORA-19863: device block size string is larger than max allowed: string ?

You can fix this error in Oracle by following the below steps

Change the device BLKSIZE to be smaller than the maximum allowed.