<div dir="auto">Not sure if still supported but you could try tagging all the files/directories in a fileset with the immutable attribute using the policy engine. Not sure if that will cover what you need.<div dir="auto"><br></div><div dir="auto">You can simply use policy engine to add or subtract that attribute at will. It's biggest drawback may be exactly what you're looking for.</div><div dir="auto"><br></div><div dir="auto">You could get fancy and mount the gpfs volume twice once read-wrire and a second read-only.. then use mount command to mount over the read only filesystem ontop of the read-write filesystem at the appropriate junctures. You'd have to do this on each node you want affected...</div><div dir="auto"><br></div><div dir="auto">So:</div><div dir="auto">/FileSys/FileSetA</div><div dir="auto">/FileSys/FileSetB</div><div dir="auto"><br></div><div dir="auto">Mount FileSys again as /ro/FileSys and share out /ro/FileSys/FileSetA use read only option on mount.</div><div dir="auto"><br></div><div dir="auto">Mount /ro/FileSys/FileSetA ontop of /FileSys/FileSetA.</div><div dir="auto"><br></div><div dir="auto">I dont have root on my GPFS filesystems so I can't test this out... But would work on most other Unit FSs.</div><div dir="auto"><br></div><div dir="auto">Alec</div><div dir="auto"><br></div><div dir="auto"><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Thu, Jan 20, 2022, 3:10 AM Billich Heinrich Rainer (ID) <<a href="mailto:heinrich.billich@id.ethz.ch">heinrich.billich@id.ethz.ch</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hello,<br>
<br>
I just wonder if I can set a fileset to readonly - or link it as readonly. When I do data migration or finished a project which has it\u2019s own fileset assigned it would be nice if I could just set the fileset to readonly to make sure that nothing and nobody can do any changes. There may be more cases \u2026<br>
<br>
Immutability seems overkill, and I can\u2019t revert it<br>
<br>
Related: If I setup an afm cache fileset in readonly mode \u2013 is this enforced on the cache side or just by convention? The afm gateways need to write to cache anyway, so probably other processes can, too?<br>
<br>
If anybody could comment and maybe also explain why it\u2019s been designed the way it is?<br>
<br>
Thank you,<br>
<br>
Heiner<br>
<br>
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