Backup Functions

The following functions are used with tape backup.

Function	Description
BackupRead	Reads data associated with a specified file or directory into a buffer.
BackupSeek	Seeks forward in a data stream.
BackupWrite	Writes a stream of data from a buffer to a specified file or directory.
CreateTapePartition	Reformats a tape.
EraseTape	Erases all or part of a tape.
GetTapeParameters	Retrieves information that describes the tape or the tape drive.
GetTapePosition	Retrieves the current address of the tape.
GetTapeStatus	Determines whether the tape device is ready to process tape commands.
PrepareTape	Prepares the tape to be accessed or removed.
SetTapeParameters	Specifies the block size of a tape or configures the tape device.
SetTapePosition	Sets the tape position on the specified device.
WriteTapemark	Writes a specified number of filemarks, setmarks, short filemarks, or long filemarks to a tape device.

 

The following functions are provided for working with single-instance store and SIS backup.

Function	Description
SisCreateBackupStructure	Creates the specified SIS backup structure based on the supplied information.
SisCreateRestoreStructure	Creates the specified SIS restore structure based on the supplied information.
SisCSFilesToBackupForLink	Returns information describing the common-store files the specified SIS link points to.
SisFreeAllocatedMemory	Frees memory allocated by SIS API functions.
SisFreeBackupStructure	Frees the specified SIS backup structure.
SisFreeRestoreStructure	Frees the specified SIS restore structure.
SisRestoredCommon StoreFile	Reports to the SIS architecture that a common-store file has been written.
SisRestoredLink	Returns the names of the common-store file or files pointed to by the specified restored SIS link.

 

The following functions are provided for working with backup and restore of encrypted files.

Function	Description
CloseEncryptedFileRaw	Close an encrypted file opened with OpenEncryptedFileRaw.
OpenEncryptedFileRaw	Open an encrypted file with access to data in encrypted format.
ReadEncryptedFileRaw	Read an encrypted file leaving its data in encrypted format.
WriteEncryptedFileRaw	Write an encrypted file leaving its data in encrypted format.