ISCSIConsole-Fork/DiskAccessLibrary/RevisionHistory.txt

Revision History:
-----------------
1.1.0 - LDM related bugfix.
        NTFS related bugfix and code clean up.

1.1.1 - Minor enhancements.

1.1.2 - Better handling of a corrupted LDM database.

1.1.3 - Disabled file system caching for virtual disks.

1.1.4 - Fixed GPT partition size detection bug.
        Allow reading from disks that are opened for write access by other applications.

1.1.5 - Improved disk detection mechanism.
        Added limited VMDK support (monolithic flat).

1.1.6 - Use the SetFileValidData() Windows API call to extend virtual disks faster.

1.1.7 - Fixed VMDK related bug (flat files that have a space in their filename).
        Added support for reading a monolithic sparse VMDK.

1.1.8 - Fixed NTFS related issues.

1.1.9 - Disks are now orderered according to disk number.
        Code clean up.

1.2.0 - NTFS related bugfixes.
        Write operations on readonly disks are no longer silently ignored and now raising exceptions, added missing readonly check to VMDK files.

1.2.1 - Minor enhancements and fixes.

1.2.2 - Minor NTFS changes.

1.2.3 - Fixed: LDM extent record now properly support the 0x40 flag.
        Added helper methods for taking a disk online/offline.

1.2.4 - NTFS related fixes.

1.2.5 - Added support for reading dynamic VHDs.

1.2.6 - More meaningful exceptions types are now thrown on errors.
        Dynamic VHD related bugfix.

1.2.7 - Minor improvements.

1.2.8 - Bugfix: CRC32 was not updated when GPT partition was extended.
      - Bugfix: Invalid protective MBR partition was written during GPT disk initialization.
      - Bugfix: A few usable sectors may have been marked as unusable during GPT disk initialization.
      - Bugfix: VHD was not extended to the correct size.

1.2.9 - We now use the same caching policy for virtual disk read and write operations. (Workaround for hosts without KB981166).
      - Bugfix: GPT header checksum verification failed if the size of the partition entries was not a multiple of sector size.

1.3.0 - Fixed a bug related to the RESUME boot sector.

1.3.1 - Adding a disk to RAID-5 volume is now faster thanks to multithreaded parity calculation (when applicable).

1.3.2 - Adding a disk to RAID-5 volume now use less read / write cache so it requires less RAM.

1.3.3 - Better handling of removable disks.

1.3.4 - Disk images can now be locked for exclusive access.

1.3.5 - We now use noncached I/O operations when working with virtual disks.

1.3.6 - Improved handling of disk read errors.
        API to retrieve disk description and serial number.

1.3.7 - Proper handling of disks with no serial number.

1.3.8 - Minor improvements.

1.3.9 - Minor improvements.

1.4.0 - API improvements.

1.4.1 - Improved volume locking mechanism.

1.4.2 - Support for disks with 4KB sectors.
        Minor improvements and bugfixes to DiskImage and inheriting classes.
        Bugfix: RawDiskImage.Extend had issue with closing the filestream.
        Bugfix: allocation within the private region of a dynamic disk did not function properly.
        API: Added RAM-Disk implementation.
        API: Added RawDiskImage.Create method.
        API: Added BasicDiskHelper.GetUnallocatedExtents method.

1.4.3 - Bugfix: MirroredVolume.BytesPerSector reported wrong number of bytes per sector when the first volume was not operational.
        Bugfix: DynamicDiskHelper.IsMoveLocationValid ignored allocated extents.
        API: Added DiskGroupGuid property to DynamicDisk.

1.4.4 - Bugfix: DynamicVolumeHelper looked for volume extents outside of the disk group.
        Bugfix: RetainHelper.IsVolumeRetained did not properly iterate components of mirrored volume.
        NTFS: Properly trim result array when caller tries to read more bytes than the record contains.
        NTFS: Return empty byte array when trying to read from offset larger than file length.
        LockHelper.LockAllVolumesOrNone will attempt to lock only mounted volumes.
        API improvements.

1.4.5 - IFileSystem: Added FileOptions parameter to OpenFile.
        DeviceInterfaceUtils: Added GetDeviceList method.
        Minor changes and improvements.

1.4.6 - Win32Errors enum: Added ERROR_INVALID_DATA
        Bugfix: The second KLOG page was not read.
        Minor changes and improvements.
        Corrected documentation.

1.4.7 - Bugfix: NTFS File Records that exceeded 511 bytes were corrupted during write.
        Minor improvements to NTFS Data Run record implementation.

1.4.8 - NTFS: ClusterUsageBitmap: Cosmetic improvements.
        NTFS: Throw InvalidDataException if FILE or INDX record signature is invalid.
        NTFS: NonResidentAttributeRecord: Minor optimization.
        NTFS: NonResidentAttributeRecord: Added GetClustersInUse() method.        
        VHD: BlockAllocationTable: Improved implementation.
        VHD: DynamicDiskHeader: Improved implementation.
        VHD: Implemented dynamic VHD write functionality.
        Minor changes and improvements.

1.4.9 - NTFS: AttributeListEntry: throw InvalidDataException when length is invalid.
        NTFS: NTFSVolume: Added GetFileRecordsInDirectoryFromMft() method for recovery purposes.
        VHD: CreateDynamicDisk now accepts any multiple of sector size as disk size.
        VHD: Create renamed to CreateFixedDisk, checks that disk size is a multiple of sector size.
        VHD: Added AreSectorsInUse() method.
        RawDiskImage: Circumvented FileStream buffering which resulted in reading more sectors than required.

1.5.0 - Bugfix: IOExceptions thrown had Win32 error code set instead of HResult.
        Better handling of broken disk drivers (e.g. Dataram RAMDisk v4.4.0 RC36).
        IOExceptionHelper: Moved ThrowIOError() method from FileStreamEx class to IOExceptionHelper class.
        IOExceptionHelper: Added GetWin32ErrorCode() and GetExceptionHResult() methods.
        NTFS: Major implementation improvements.
        Win32Error: Corrected underlying type to ushort.
        Win32Error: Added file system related error codes.
        FileStreamEx: Optimized implementation.
        FileStreamEx: Added ReadOverlapped() and WriteOverlapped() methods.
        FileStreamEx: Added SetValidLength() method.
        FileStreamEx: Added flushToDisk parameter to Flush() implementation.
        Disk: Marked IsReadOnly property as virtual.
        RawDiskImage: Added option to use overlapped IO.
        VirtualHardDisk: Added option to use overlapped IO.
        VirtualMachineDisk: Bugfix: Extent opened for write when IsReadOnly was true.
        Added DiskFullException implementation.
        Added AlreadyExistsException implementation.
        Added DirectoryNotEmptyException implementation.

1.5.1 - PhysicalDisk: Added isReadOnly constructor parameter.
        DiskExtent: Added IsReadOnly property.
        Volume: Added IsReadOnly virtual property.
        VirtualMachineDisk: Bugfix: IsReadOnly always returned false.
        VMDK: Improved implementation.
		DiskImage: Added ExclusiveLock() overload for overlapped IO
        NTFS: NTFSVolume: Added IsReadOnly property.
        NTFS: Major improvements to logging implementation.
        NTFS: Log changes to MFT data and changes to Bitmap attributes.
        NTFS: MasterFileTable: GetFileRecord, GetFileRecordSegment: throw InvalidDataException if SequenceNumber does not match FileRecordSegment.
        NTFS: VolumeInformationRecord: Added IsDirty property.
        NTFS: NTFSVolume: throw exception in the constructor if the volume is invalid or not supported.
        NTFS: FileRecordSegment: Bugfix: Alignment of EndMarkerLength to 8-byte boundary was not taken into account.
        NTFS: NTFSVolume: Changed RootDirSegmentReference property from protected internal to public.
        NTFS: IndexHelper: Bugfix: Correctly set BlocksPerIndexRecord when BytesPerIndexRecord > BytesPerCluster.
        NTFS: NTFSVolume: Added support for multithreading.