Recreate window

When you push "Recreate" button on Verify window. While Recreate window is alomst same as Create window, you cannot change source files.


Source files

The directory and selection of source files are same as the original recovery file. Selected files are listed on the file-list, and the total data size and blocks are calculated. You cannot change the block allocation, too.


Recovery files

  • Base Filename
    If you don't want to over-write original files, you may change to a different name.
  • Comment button
    You can enter newly, or you may change the previous comment.
  • Redundancy
    "Redundancy" is a rate of how much damage can be recovered. For example, if you set 10% for source files of 500MB, you will be able to recover damage or lost upto 50MB. Caution, actual possibility of recovery depends on the distribution of damage. In general, while dense damage in narrow area may be recovered with small redundancy, sparse damage over wide area requires larger redundancy. When you set 0%, only an index file to verify will be created.
  • First recovery block number
    If you want to add extra recovery blocks to the original recovery files, by setting this starting number, you can create recovery files from the previous block. If this value is 0, all recovery blocks are recreated from first block.
  • Number of Recovery blocks
    You may input the number of recovery blocks directly. You can set more blocks than the range of redundancy slider.
  • Sizing scheme and Number of recovery files
    "Sizing scheme" is how are the size of recovery files. When "All the same size" or "Variable size" is selected, you can set the number of recovery files. Then, the specified number of recovery files of same size or different size will be created. When "Powers of 2 sizing scheme" or "Decimal weights sizing scheme" is selected, the number of recovery blocks in each recovery file will be "1,2,4,8,16,32,64,128..." or "1,1,2,5,10,10,20,50...". In the later two scheme, size of a recovery file is limited to size of the largest source file.

  Sample distribution of 500 blocks for each sizing scheme:

Sizing schemeHow many blocks in each recovery file
All the same size 167, 167, 166 (when 3 files) 84, 84, 83, 83, 83, 83 (when 6 files)
Variable size 71, 143, 286 (when 3 files) 8, 16, 32, 63, 127, 254 (when 6 files)
Powers of 2 sizing scheme 1, 2, 4, 8, 16, 32, 64, 128, 245 (total 9 files)
Decimal weights sizing scheme 1, 1, 2, 5, 10, 10, 20, 50, 100, 100, 200, 1 (total 12 files)

 

  • Efficiency
    This is a rate of how much data the recovery files can recover. For example, when the efficiency is 95% for recovery files of 200MB, you will be able to recover upto 190MB.
  • Number of files that can be fully reconstructed if missing (Min - Max)
    You may refer these values to know the recoverying capability of recovery files. When sizes of source files are largely different, recovering a file may require more redundancy than you thought.

  • Open button
    If you want to open an existing recovery file, push this to select which. The current setting over Create window is not saved.
  • Exit button
    You can close MultiPar by pushing this. Be careful, because there is no warning before exit. The current setting over Create window is not saved.
  • Options button
    If you want to change settings, push this, then Option window will appear.
  • About button
    By pushing this, you can see version number on About window. You may launch this Help from there.
  • Preview button
    If you want to know the size of each recovery file, you can see Preview window by pushing this.
  • Create button
    After you selected source files and done every setting, you push this to create recovery files. Creating window will open to show the progress.