ORA-19575: expected string blocks in file string, found string
Cause: During a backup, restore, copy, or scan operation, the indicated file did not contain as many blocks as were indicated in the file header.
Action: The input copy or backup piece is probably corrupt. If another backup or copy exists of the file that is being restored, then the corrupt file can be deleted from the recovery catalog and the operation can be restarted.
ORA-19575：期望在文件string中发现块字符串，而实际发现是string。
1.为了解决这个错误，首先需要检查trace文件是否为空，如果文件不为空，应该先删除文件。
2.检查并确认该trace文件可以正确访问，并合法存在。
3.在使用ALTER DATABASE BACKUP CONTROLFILE TO TRACE时将正确的trace文件名称指定为参数。