Changes between Version 1 and Version 2 of administration/backup_method

Timestamp:

Apr 10, 2009, 12:04:41 AM (14 years ago)

Author:

hank

Comment:

--

administration/backup_method

@@ -1 @@
-[[Include(source:trunk/doc/administration/backup_method.txt, text/x-trac-wiki)]]
+= !SilverFile Backup Methodology =
+
+== Introduction ==
+Data integrity is a key feature of the !SilverFile service.  To this end, we 
+propose a combination of backup methods to protect files/data from hardware 
+failure and user error. The following describes these methods:
+
+== Disk Mirroring (RAID) ==
+We are using two physical hard drives in a RAID mirror configuration (RAID 1).  
+Data is replicated in real time between the two drives so that if one drive 
+fails data is still preserved on the other drive.  The RAID is created 
+during installation of the Ubuntu OS.  
+[/projects/devsilverfile/wiki/servers/setup-condensed RAID Installation How-To] 
+
+ * '''RAID Monitoring''' [BR]
+   Disk/RAID monitoring is done with mdadm.  Email alerts are sent if 
+   the RAID status is negative.
+ * '''More Here'''
+
+== Data Mirroring (Between separate servers) ==
+Data is replicated to a backup server on an '''hourly''' basis via {{{rsync}}}.  
+Whatever file composition is in the primary Silver File server becomes 
+reflected in the mirror in the backup Silver File server.  
+
+== Incremental Backup ==
+While the above methods for data preservation are useful to safeguard
+against data loss due to hardware failure, they are not as useful
+for protecting against loss due to user error.  For instance
+if someone accidentally deletes a file or folder and is unable to 
+"undo" this, it is useful to be able to revert back to certain 
+backup points in order to retrieve the data.
+
+We propose the following backup points.  All backup points will be at midnight.  
+ * 1 Day (or midnight prior to current time)
+ * 2 Day (or 2 midnights prior to current time)
+ * 1 Week (or 7 midnights prior to current time)
+ * 2 Week (or 14 midnights prior to current time)
+
+2 weeks will become the farthest point back to which we can revert.
+
+
+=== Incremental Backup (Local) ===
+[/projects/devsilverfile/wiki/administration/rdiff rdiff-backup]
+
+
+=== Incremental Backup (Remote) ===
+== Duplicity ==
+[/projects/devsilverfile/wiki/administration/duplicity duplicity]
+
+== s3cmd ==
+S3cmd is part of s3tools, which are a group of tools for interacting with the
+Amazon S3.  
+{{{
+yum install s3cmd
+s3cmd --configure
+}}}
+
+Create a new S3 bucket with s3cmd:
+{{{
+s3cmd mb s3://herron-steele/
+}}}
+
+List all buckets in S3 account:
+{{{
+s3cmd ls
+}}}
+