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FFB File Permissions

The same permission, based on ACLs,  as used on for the Lustre analysis file-systems are used for the FFB. The permissions are based on ACLs. However, there is an issue with the current version of the file system:

• the umask is applied when creating files and directories although ACL are usedwhich violates the  ACL specs. As the default umask is 022 the group write permission will be removed. We recommend to set ones umask to:

% umask 0002

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• Each FFB file server (16 of them) has a 100Gb/s IB connection
• Each batch node has a 100Gb/s IB connection
• Batch nodes have either a 10Gb/s or a 1Gb/s Ethernet connection
• All Ethernet Luster access goes eventually through psnfslustre psnfslustre02 and is limited 10Gb/s
• The figure also shows which network is used for the different file path

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