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backup:snapshot [2007/09/20 13:50] cangianibackup:snapshot [2007/09/20 13:55] cangiani
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 ===== For Algo/Arni/Licos Users ===== ===== For Algo/Arni/Licos Users =====
 +
  
 ==== What ==== ==== What ====
 In this case, we use a standard linux file server (which costs 10 times less then the NetApp) and an home-brewed snapshot solution developed using standard Unix hard-links and the [[http://samba.anu.edu.au/rsync/|rsync]] utility. In this case, we use a standard linux file server (which costs 10 times less then the NetApp) and an home-brewed snapshot solution developed using standard Unix hard-links and the [[http://samba.anu.edu.au/rsync/|rsync]] utility.
 For the moment we take hourly snapshots and we keep 10 snapshots distributed more or less logarithmically in time so that we have many recent snapshots and few old ones. The distribution over time is not regular because only meaningful snapshots (when something actually changed) are kept. Snapshots are sometimes only taken during the day, and from Monday to Friday. For the moment we take hourly snapshots and we keep 10 snapshots distributed more or less logarithmically in time so that we have many recent snapshots and few old ones. The distribution over time is not regular because only meaningful snapshots (when something actually changed) are kept. Snapshots are sometimes only taken during the day, and from Monday to Friday.
 +<note warning>
 +Please consider this as an highly experimental feature for the moment. It will often be down for maintenance, bug-fixes, enhancement and various other reasons.
 +</note>
 +
 +
  
-Note also that sometimes for the snapshot system is down for maintenance, bug-fixes, enhancement and various other reasons. Please consider it still as an highly experimental feature for the moment.  
  
 ==== How ==== ==== How ====
-Snapshots are presently only accessible only from linux workstations using the //automount// directory ''/snap/USERNAME''. Within this directory, the various snapshots are named after the date and time when they were created. For example: +Snapshots are presently only accessible from linux workstations using the //automount// directory ''/snap/USERNAME''. Within this directory, the various snapshots are named after the date and time when they were created. For example:
-[root@algosrv5 bhome]# ls -1 /snap/cangiani+
 <code> <code>
 +[cangiani@licospc11 ~]$ ls -1 /snap/cangiani
 2007-09-20_Thu_14h     ~ 1 hour ago 2007-09-20_Thu_14h     ~ 1 hour ago
 2007-09-20_Thu_13h     ~ 2 hours ago 2007-09-20_Thu_13h     ~ 2 hours ago
backup/snapshot.txt · Last modified: 2015/07/01 13:42 by 127.0.0.1