The main research file server is «dilbert.eecis.udel.edu».
As of January, 2014, the following snapshot policy is in effect. All file systems on Dilbert have snapshots taken at 12PM, 6PM, and 11PM. The latter snapshots are named by the day of the week and kept for one week. Sundays at 1:30AM, snapshots named w1, w2, etc, are taken which are kept for five weeks. Finally, a snapshot is taken at 12:30AM on the first of each month which is kept indefinitely.
Regular snapshots are made of ZFS filesystems which are then copied, while the live filesystem is used for other filesystems.
For many systems rsync is used and then a ZFS snapshot is taken so a daily image is available for restores. For some servers file systems are replicated with ZFS send/receive.
PLEASE note that you can manually backup/store important data onto a network disk. The FAQ links to SAMBA (PC/MAC/Linux) or AFP (MAC) allow ECECIS users to store data to network disks that are backed up automatically. These network disks allow several Gigabytes or more of data to be stored.
ZFS monthly snapshots are currently being kept indefinitely on the primary file server systems (home directories and WWW). Weekly snapshots on those systems are kept for up to five weeks. Other which take snapshots (such as those on the laptop virtual-tape backup system) have separate retention policies depending on available disk space and usage.
We also will backup Linux and BSD systems that are maintained by users with rsync. To do this the user should install rsync from their package manager or directly from http://rsync.samba.org/. For more info and to have this enabled use the Help System.
There is a Virtual Tape System (VTS) available for backing up faculty laptops (100GB). A script has been written to initiate backups from a client which can be manually activated or (ideally) scheduled to run automatically: other server/desktop backups are activated from the server, which isn’t ideal for mobile systems which aren’t always on the network. Feel free to request assistance through the Help System
To restore files from the Virtual Tape System, you can either mount the VTS on
your computer or recover files from /backups/USERNAME on any EECIS UNIX system.
To mount the VTS on a Windows client right click «My Computer» from the Start
menu and select «Map Network Drive». Choose an unused drive letter and enter
\smb2.eecis.udel.edu\USERNAME as the «Folder». Note that USERNAME needs to be
your EECIS login username, and if your username on your laptop is different,
you’ll need to click «different user name» and enter the appropriate
information in the popup. To mount the VTS on a Mac client, from the Finder,
select «Go → Connect to Server», and enter
smb://smb2.eecis.udel.edu/$USERNAME as the server address. Be sure to select
«Registered User» and enter your EECIS username as your name (your full name
may be pre-filled).
Regardless of how you locate your backups, you should normally see two folders.
One folder will be named for your machine, and is where the most recent backup
files are found. (
Z:\MACHINENAME\cygdrive\c, for example). The other folder is
named ‘Archive’ and points to an hierarchy of archived copies
Z:\Archive\snapshot for example). Note: archived backups may not be visible
via SMB mounts and you may have to recover older files via EECIS Unix machines.
The hierarchy is as follows: 12 & 18 are the previous Noon and 6pm copies, Mon
through Sun are the Noon copies from those days this week, w0 through w7 are
the Friday Noon copies from those previous 8 weeks, and finally the m0 through
m2 are the end-of-month Noon copies for the previous 3 months.
A new zone has been created to allow for backups using the native software on Windows and OS X. For more information on how to use this system please see the backup zone page.