The specified file will not be included in the backup or restore operation.

In this case, the file must be offline or the database must be closed.

If the type is read-only, then you are attempting to back up or copy this file while the database is in NOARCHIVELOG mode.

Cause: An attempt was made to specify a type of file to be backed-up or restored, but the current conversation cannot process this type of file.

For example, you specified an archived log to be included in a datafile backup set.

All files in a backup set must have the same logical block size.

Cause: This message identifies the output file for a failed copy operation. When creating a new datafile copy, its control file record number may not have been determined when the message is printed. Cause: An attempt was made to copy or backup a file that was not closed cleanly, and the database was in NOARCHIVELOG mode.Action: Specify a correct value for parameter LOG_ARCHIVE_MIN_SUCCEED_DEST.If the archive log parameters LOG_ARCHIVE_DEST or LOG_ARCHIVE_DUPLEX_DEST are in use, set parameter LOG_ARCHIVE_MIN_SUCCEED_DEST to either 1 or 2.Cause: The destination for parameter LOG_ARCHIVE_DUPLEX_DEST was deferred when it was required to be enabled.The destination was deferred automatically when an ALTER SYSTEM command for parameter LOG_ARCHIVE_DEST defined a destination which duplicated an existing LOG_ARCHIVE_DUPLEX_DEST parameter destination.Action: If the block size was set by using the PARMS option of the Recovery Manager ALLOCATE CHANNEL command, then the specified block size must be changed.