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Neon shutdown

The Neon HPC cluster will be shutdown on January 7, 2019. Working Neon nodes will be integrated into Argon and accessible as of January 21, 2019. This means that the data from your Neon home/scratch must be migrated either to your existing Argon storage or locally. Below you can find a timeline of the transition:


  • May 1, 2018 - HPC Model Change Decision Made & Consumer GPU Nodes Announced
  • July/August 2018 - First Phase 2 Argon GPU Nodes Installed
  • November 1, 2018 - No New Neon Accounts Created
  • January 7, 2019 - Neon System Shutdown
  • January 21, 2019 - Neon nodes reinstalled and accessible in Argon.
  • March 1, 2019 - Last day to transfer data off Neon /home and /nfsscratch


For further information regarding the transition, please click here.

Your storage:

Your data on Neon will be maintained until March 1, 2019. Please be advised that any data being migrated from Neon home/scratch to a local machine must be decompressed, and therefore may end up being larger than it appears on Neon. When copying data from Neon → Argon homes, keep in mind that data stored on Argon homes cannot exceed 1TB. Reminder that the inability to submit jobs occurs once the storage quota exceeds 90%. To check your current storage, login to Neon and use the command below: 

[jhetrick@argon-login-1 ~]$ df -h .
Filesystem                           Size  Used Avail Use% Mounted on
172.29.4.35:/dpool01/Homes/jhetrick  1.0T  432G  593G  43% /Users/jhetrick

If you find that you have run out of space in the process of copying data and cannot remove it, please see: What to do if the 'rm' command isn't deleting files


When copying large amounts of data from Neon to Argon-nfsscratch, remember that data that is placed there will be cleared 60 days later as part of our cleaning policy. The scratch cleaning policy on neon-nfsscratch will be removed on January 7th so that no data will be removed by that policy prior to the host being decommissioned on March 7.

Methods to obtain data:

As users will be unable to long into Neon after January 7, 2019, we recommend that users utilize data.hpc.uiowa.edu to transfer stored data rather than relying on mounting their home accounts directly.  This will be the new method of mounting Argon home accounts moving forward due to underlying changes in how home storage space will be provided.

Fetch, WinSCP and GridFTP will all connect to the server data.hpc.uiowa.edu. Refer to the table below to choose the storage path that pertains to you. 

/hpchomes/<cluster>/<hawkid>/Your HPC home directory. For <cluster>, this is either "neon" or "argon"
/Dedicated/<sharename>/Dedicated shares
/Shared/<sharename>/Shared shares
/nfsscratch/<cluster>/The NFS scratch filesystem. For <cluster>, this is either "neon" or "argon"

Mounting data.hpc.uiowa.edu (Windows)

You can use this server which allows you to access your neon-home and neon-nfsscratch. This alleviates the need to use a third party program. No HawkID is needed and you can enter the path exactly as seen below.

Note the use of the backward slashes.

Mounting data.hpc.uiowa.edu (Mac)

Same thing as above, but for Mac.

Fetch (mac only): This will mount your Neon account. Follow the table above for setting a path to get your data from shared shares, dedicated shares, or from nfsscratch. In this case, the path below is just for home directories.  You can then execute "get" commands to pull your data from Neon onto your local workstation (keep in mind the compression aspect). If you are doing this off campus (or not connected to the VPN), ensure that the "Port" is 40. Note that using SCP method will require Duo authentication and you should see notification on your device.


WinSCP (windows only): This will mount your Neon account. Follow the table above for setting a path to get your data from shared shares, dedicated shares, or from nfsscratch. In the example below, the path is for home directories. The server will be data.hpc.uiowa.edu - we have to manually link it to the proper directory. Once connected, you can drag and drop files from Neon onto your local workstation. If you are doing this off campus (or not connected to the VPN), use port 40.

After you authenticate with Duo, you will notice your path looks like this. Click the very first character, the forward slash, twice. It will open a "Open directory window" where you then can then enter the path from the above table for dedicated, shared, or nfsscratch. 

Globus/GridFTP:

Please follow this link: Globus Online



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