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mdweisner merged 1 commit into from
Mar 4, 2026
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Update 08_sharing_data_on_hpc.mdx #311

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18 changes: 18 additions & 0 deletions docs/hpc/03_storage/08_sharing_data_on_hpc.mdx
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Expand Up @@ -60,6 +60,24 @@ A::EVERYONE@:rtncy
```
where `collaborator-netid` refers to the `NetID` of your collaborator.

#### New NFS4 FACL Example
This example will grant a user, kevin, access to a shared directory in susie's /scratch directory.

To share a specific directory and all subdirectories a user would run something like this:

```sh
nfs4_setfacl -a "A::kevin:RX" /scratch/susie
```

The above grants kevin basic read/execute to /scratch susie, which is required to see directories and files below `/scratch/susie`.

```sh
nfs4_setfacl -R -a "A:df:kevin:RWX" /scratch/susie/share
```

The above would allow kevin to have have read, write, and execute access for *all directories* and files inside `/scratch/susie/share`


## Linux Groups for Group Permissions
The HPC team allows teams to manage group membership using a IPA Linux Group. This is a good choice for when all users need the same read/write/execute permissions for a directory and subdirectories.

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