README: Explain that there are no incremental backups.

This was unclear to an admin who had used dss for several years! So
maybe it is a good idea to explain the idea behind hardlink-based
backups a bit more.

This commit adds two new sentences to README, one for the admin and
another one for the user.

diff --git a/README b/README
index 5cc2914f15db9b8a675f68d59d835b8c1b647a6c..c5abb2923cc7ca9cd415ccdcbce9dd56ece4d0fd 100644 (file)
--- a/README
+++ b/README
@@ -4,14 +4,17 @@ or local host using rsync's link-dest feature.
 dss is admin friendly: It is easy to configure and needs little
 attention once configured to run in daemon mode. It keeps track of
 the available disk space and removes snapshots if disk space becomes
 dss is admin friendly: It is easy to configure and needs little
 attention once configured to run in daemon mode. It keeps track of
 the available disk space and removes snapshots if disk space becomes

-sparse or snapshots become older than the specified time.
+sparse or snapshots become older than the specified time. Also, due
+to the hardlink-based approach, there is only one type of backup.
+Hence no full, incremental or differential backups need to be
+configured, and there is no database to maintain.

 
 dss is also user-friendly because users can browse the snapshot
 directories without admin intervention and see the contents of the file
 
 dss is also user-friendly because users can browse the snapshot
 directories without admin intervention and see the contents of the file

-system at the various times a snapshot was taken. In particular, users
-can easily restore accidentally removed files by using their favorite
-file browser to simply copy files from the snapshot directory back
-to the live system.
+system at the various times a snapshot was taken. Each snaphot looks
+like a full backup, so users can easily restore accidentally removed
+files by using their favorite file browser to simply copy files from
+the snapshot directory back to the live system.

 
 dss gives your data an additional level of security besides the usual
 tape-based backups: If the file server goes down and all data is lost
 
 dss gives your data an additional level of security besides the usual
 tape-based backups: If the file server goes down and all data is lost