+.. -*- coding: utf-8-with-signature -*-
+
=======================
Tahoe-LAFS Architecture
=======================
Overview
========
-(See the `docs/specifications directory <specifications>`_ for more details.)
+(See the `docs/specifications directory`_ for more details.)
There are three layers: the key-value store, the filesystem, and the
application.
copies files from the local disk onto the decentralized filesystem. We later
provide read-only access to those files, allowing users to recover them.
There are several other applications built on top of the Tahoe-LAFS
-filesystem (see the `RelatedProjects
-<https://tahoe-lafs.org/trac/tahoe-lafs/wiki/RelatedProjects>`_ page of the
-wiki for a list).
+filesystem (see the RelatedProjects_ page of the wiki for a list).
+.. _docs/specifications directory: specifications
+.. _RelatedProjects: https://tahoe-lafs.org/trac/tahoe-lafs/wiki/RelatedProjects
The Key-Value Store
===================
facility with high interconnect bandwidth. In this case, the helper is placed
in the same facility, so the helper-to-storage-server bandwidth is huge.
-See `<helper.rst>`_ for details about the upload helper.
+See helper.rst_ for details about the upload helper.
+
+.. _helper.rst: helper.rst
The Filesystem Layer
least frequently enough to prevent any of the leases from expiring before the
next renewal pass.
-See `<garbage-collection.rst>`_ for further information, and for how to
-configure garbage collection.
+See garbage-collection.rst_ for further information, and for how to configure
+garbage collection.
+
+.. _garbage-collection.rst: garbage-collection.rst
File Repairer
to periodically count the number of shares still available for any given
file. A more extensive form of checking known as the File Verifier can
download the ciphertext of the target file and perform integrity checks
-(using strong hashes) to make sure the data is stil intact. When the file is
+(using strong hashes) to make sure the data is still intact. When the file is
found to have decayed below some threshold, the File Repairer can be used to
regenerate and re-upload the missing shares. These processes are conceptually
distinct (the repairer is only run if the checker/verifier decides it is