PETAL: 1.4 Linux client access

The PETAL archive is accessible from all University clients via kerberized NFSv4.

For the Faculty of Environment, after a project directory is created on petal-fs-01 in /export/archive/spectra, the project also has to be added to the NFS automount tables. This is on see-app-01 in /var/yp/ypfiles/see.leeds.ac.uk/auto.petal. Just create a new line along the lines of the existing ones. For some reason, we have followed a convention of changing all uppercase to lowercase in this file - not sure why we did that ! After the Yellow Pages have been rebuild, the access point is:

/nfs/petal/my_project

Users can then access and use it with normal Linux commands. For example:

cp -aruv ~/data /nfs/petal/my_project

Users outside of Environment will require the PETAL cache to be set up on a machine which they have access to. Typically, an entry has to be added to local ‘automount’ maps like:

petal -fstype=nfs4,sec=krb5,hard,intr petal-fs.leeds.ac.uk:/archive/spectra2/my_project

We have found that the system can't deal properly with sparsedata - so users should be advised that options like rsync -S and cp --sparse should not be used - data may get corrupted.

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T950

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Topic revision: r4 - 13 Oct 2017 - StuartBorthwick1
 
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