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CGD Computing FAQs

CGD Filesystems: Backups and Quotas

/home (H: Drive)

Backups: Yes (every 8 hours)
Quota: 6 GB

To access /home backups:
cd /home/username/.snapshot
You will see several backup directories. Look in the directory that has the date most likely to contain the version of the file you want to recover. Files in .snapshot do not count against your quota.
Older files: Files up to 3 months old are kept on tape. Put in a request for file retrieval for files older than the .snapshot backups through the WREQ system.


/var/mail (Email inbox)

Backups: Yes
Quota: 1 GB

To access mail backups:
cd /var/mail/.snapshot
You will see several backup directories. Look in the directory that has the date most likely to contain the version of the file you want to recover. Then go to your username. Files in .snapshot do not count against your quota.


/project

Backups: NO
Quota: 24 TB per section.

Note: This space has been allocated to each section and is managed by them,
not CGD/IS. Look in the file AAA_Usage_Mitigator under /project/<section> for the name of the person who regulates the usage of the /project space for that directory.


/fs/cgd/home0
/fs/cgd/data0
/fs/cgd/csm

Backups: Yes (nightly)
Quota: TBA


/home on CGD Clusters (bangkok and calgary)

Backups: Yes
Quota: 1 GB
Note: This /home filesystem is separate from the CGD /home.


/web/web-data (W: Drive)
/ftp

Backups: Yes
Quota: None (good neighbor policy applies - delete unnecessary files)


/web/public_html/<username>

Backups: Yes
Quota: 25 MB
Description: Personal web space for staff. Accessible via: http://www.cgd.ucar.edu/~username


Local Files on Linux Systems

Backups: NO
Quota: Size of disk on system
Description: These local data files are all contained on internal hard drives. Most are mounted as /datalocal/aux0. The size of the drives varies. Backups are the responsibility of the user.


Local Files on Windows Systems

Backups: Yes
Quota: 10 GB

Local files on Windows systems on our network are automatically backed up using the Commvault Client. Backups will only run when the machine is connected to the internal Wired CGD network. The local files that are backed up are:

C:\Documents and Settings\<username>\My Documents
C:\Documents and Settings\<username>\Application Data

Backups are kept for 3 months and individual files can be retrieved from any date on which a backup occurred within those 3 months. Machines are usually backed up once in a 24 hour period).

Note: If you have the H: (/home) drive mapped on your computer, this is a networked, not local, filesystem and it is backed up (see above.)


Local Files on Mac Systems

Backups: Yes
Quota: 10 GB

Local files on Mac systems on our network are automatically backed up using the Commvault Client. Backups will only run when the machine is connected to the internal Wired CGD network. The local files that are backed up are:

/Users/<username>/Documents
/Users/<username>/Library/thunderbird
/Users/<username>/Library/Application Support/firefox

Backups are kept for 3 months and individual files can be retrieved from any date on which a backup occurred within those 3 months. Machines are usually backed up once in a 24 hour period).


Irretrievable Files

Files in directories with the following names can be deleted without possibility of recovery at any time, so please do not put important files here:

  • /ptmp
  • scratch -> /scratch (Unix)
  • temp
  • tmp -> /tmp (Unix)
  • trash -> E-mail readers, Windows, Mac, etc.

Quotas

The quotas for various filesystems are listed above. It is important to remember that that all files owned by you count against your quota limit - not just the files in your /home directory. That is, if you own any files in someone else's home directory, they count towards your quota limit too. Files in .snapshot do not count against your quota.

To see your quota, log on to a Solaris host and type the command:
quota -v


Retrieval from Backup

If you need to recover a file from one of CGD's backed-up filesystems, put in a request through the Help Desk system. Retrieval of files from /home and /var/mail can be done by the user using the .snapshot directory (see instructions above.)


Mass Storage System

Data can also be stored through SCD's Mass Storage System.