Difference: FileStorage (7 vs. 8)

Revision 82016-04-21 - GordonStewart

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Storage

PPE storage provision is currently under review, and the following is subject to change.

Various file storage areas are available to PPE group members, with different areas intended for, or suited to, different uses. These include:

  • Home areas (/home in Linux), which are mostly backed-up.
  • Data areas (/data in Linux), which due to the sheer volume of data are generally not backed-up.
  • Scratch space on certain machines (/pcdisk/<HOSTNAME>), which are not backed-up.

It is your responsibility to ensure that your important files are protected, and so you should take particular note of which areas are backed-up.

Linux

Linux machines are configured to mount home and data areas automatically. Home areas are located in /home, and data areas in /data.

 
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File Storage

 
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  • Storage areas for user files are provided via NFS for LINUX users and via SAMBA for Windows users.
  • Data files should be stored within these storage areas rather than on a local machine.
  • Users should be aware of which areas are backed up.
 
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From LINUX

 
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  • HomeAreas are available via /home/
  • DataAreas are available via /data/
  • Scratch areas on the local disc are available via /pcdisk/ppepcXX
 
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After logging into a LINUX system either from the console of a LINUX desktop or via ssh a user will start their session within their home area. Other areas NFS areas are auto mounted and so may not be visible via a df command. A list of the current data areas can be found using the ypcat command.
 
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Listing the available data areas
$ ypcat -k auto.data
 

Local Scratch Disk

 
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