Control post-processing behaviour
| Extra PAR2 parameters | See Multi-core PAR2 |
| IONice parameters | See IONice to reduce disk priority |
| Enable unrar | Allow the use of the UNRAR command for unpacking RAR files. Whether or not RAR files are actually unpacked is controlled by the job options. |
| Enable unzip | Allow the use of the UNZIP command for unpacking ZIP files. Whether or not ZIP files are actually unpacked is controlled by the job options. |
| Enable File Join | Allow the use of file joining of split files. Works only if the files are called file.001, file.002, file.003 etc. |
| Enable Par cleanup | Allows removal of PAR2 files after corrections of the download have been applied. Only set this to false when you have error correction problems witth SABnzbd. |
| Fail on yenc crc Errors | Only important when using fill servers. When a primary server delivers a message with errors you can ignore the message and rely on PAR2 correction. You can also choose to try to download the message from a fill server, but this takes more time and bandwidth. |
| Do not download same job twice | Skip job if a backed-up NZB with the same name exists. Note: you will need to enable backup of NZB files! |
| Only get articles for top of the queue | When a top-job stalls for some reason, start downloading segments for the next job (costs more memory). This prevents a job from blocking the queue when you have an unreliable Usenet server. If you need this behaviour, set the value to False. If you have a reliable server (most paid servers), you might as well set this to True. |
| Post-process only verified jobs | Enabling this, will make SABnzbd only do post-processing if all file-sets pass par2 checking. |
| Default post-processing | Specify the job options for jobs that are started by reading NZB files in the dirscan directory. |
| Default user script | Default user-provided script that should be executed after a job completes. |
Other controls
| Disconnect on empty queue | Disconnect from Usenet server(s) when queue is empty or paused. This will help you switch between different systems. Set this option off when your server keeps complaining that you have too many connections open. |
| Send group | Some news servers require the Usenet group to be sent before starting download. Only enable if (one of) your servers has problems with downloading otherwise. |
| Sort by age | When you use a server with a low retention time, you can choose to download the oldest parts of a job first. This way you have more chance on completing the download. |
| Check for new release | If enabled, SABnzbd will check once a week whether a new release has been published on SourceForge.net |
| Replace Spaces in folder names | Enable to replace spaces with underscores in folder names. |
| Replace illegal characters in foldernames | Replace illegal characters in folder names by equivalents. If you switch this off, illegal characters will be just removed. |
| Launch browser on startup | Enable to auto-launch of the browser when SABnzbd is opened. |
| Ignore sample files | Do not download files whose names contain the word "sample". |
| Pause downloading during post-processing | Will pause the queue while verifying and repairing, only needed for resource-constrained systems (like NAS-devices) |
Multi-core PAR2
The Win32 distribution of SABnzbd now comes with a multi-core version of the PAR2 program which will see improvements for those with multi-core processors. For linux or OSX you will need to locate the multi-core versions of par2 yourself, such as this one for linux.
The behaviour of multi-core PAR2 can be influenced by an extra parameter.
This option is only of use to users running the multi-core par2 version, so do not specify the value if you are running the normal (single-core) version of par2.
These are the choices:
-t- : Use it single-core
-t0 : Use multi-core for repairs but not for verify (prevents disk trashing)
-t+ : Always use multi-core
You may need to experiment a bit to get the best behaviour for your system.
Should you have another variant of PAR2, you specify its required parameters here.
IONice to reduce disk priority
When SABnzbd runs external tools like par2 and unrar, these tools may use up all disk capacity.
This can make simultaneous use of the system problematic, e.g. when you want to watch a movie.
If you set parameters in the ionice option box, the tool will be used (if installed).
You will need to experiment with the parameters. Leaving the box empty will disable the use of ionice.
The standard parameters are -c2 -n4.
For more info, see the ionice man-page
Be careful, using wrong parameters will make all external tools fail!
