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How to configure a data disk that is read-only, and all the writes that you want to do on it are redirected to another disk, Windows Server 2016?

I have an iscsi disk shared with 5 clients, and the softwares need to write temporary and other things and corrupt the disk It is called "virtual writing", since everything it writes is garbage, it sends it first to the ram cache and then to another disk or partition, and to the iscsi disk it does not write it

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  • Welcome. What research have you done regarding this? What have you tried? Could you describe more about what you are actually trying to accomplish with this, as in, what is the problem you were trying to solve when you came up with the idea of doing this? Please add this information to your question using the EDIT button. Do not just reply in comments here unless you have questions of your own.
    – music2myear
    Nov 20 at 21:03
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    What you describe is a writable overlay, by the way, not cache. Please describe your use case in greater detail. Do you want to create an immutable operating system partition? Or is this perhaps not about the operating system at all but only a data disk? There’s just not enough information. Add more details to your question.. But don’t forget to ping others in the comments as well, using @mentions, or they might never know!
    – Daniel B
    Nov 20 at 21:12
  • It is still unclear. If the software needs to write but not clients, the use Windows permissions to do it. Otherwise change the software. If you cant, the please detail what folders are being used for reading / writing
    – Rohit Gupta
    Nov 26 at 5:51
  • It is called "virtual writing", since everything it writes is garbage, it sends it first to the ram cache and then to another disk or partition, and to the iscsi disk it does not write it
    – Santiago Andres
    Nov 26 at 22:58
  • something similar to disk freezers, but in this case you can redirect where you write
    – Santiago Andres
    Nov 27 at 13:07

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