[MontyJ]

Originally Posted by iostrym

Thanks a lot. After reading more, the way it works is:
Place library of calibre on the Nas ( but you won't be able to use two calibre installation on different PC to use it because of right problem and so on)
Install cops on the Nas and I will be able to share the content of library using HTML server.

Things that I don't know :
Cops is able to edit file ( add metadata inside epub or PDF ?) If yes, no problem if calibre is working in same time ?
I have then the feeling that calibre don't work with cops as it don't know that cops exist. Right ?
Cops can be accessed from outside (I may say yes using correct redirection)
Is there a user feature with logon to cops?

Thanks a lot

Cops is able to edit file ( add metadata inside epub or PDF ?) If yes, no problem if calibre is working in same time ?

No editing or changing Calibre files in any way through COPS. Calibre does not know or care about COPS, and COPS does not know or care about Calibre. COPS operates in "read only" mode as it gets its data from the Calibre libraries, or copy of the libraries in a setup like mine.

I have then the feeling that calibre don't work with cops as it don't know that cops exist. Right ?

That is correct.

Cops can be accessed from outside (I may say yes using correct redirection)
Is there a user feature with logon to cops?

Yes, it can be setup as a webpage. COPS itself does not have any user login features. You need to do that via a web server like Apache or other of your choice.

It is really a nice setup. Since I use the QNAP as the backup for my Calibre libraries, adding COPS means Calibre itself does not have to be on and running all the time. My goal was to provide 24x7 access to some of my Calibre libraries to others via the Internet w/o needing to keep my main, power hungry PC on all the time. The QNAP NAS box has minimal power usage so can be left on all the time.

So when I made changes/additions to Calibre, I run my backup program to add those changes to the backup on the NAS so the Calibre libraries are duplicated exactly. COPS then automatically picks up any changes it sees on the NAS; no further adjusting or maintenance required for COPS.

Calibre does have a 'Calibre Server' built in you can use, but as I mentioned before, my remote users need 24x7 access. And while the Calibre Server method method worked, it was not ideal because I had to leave my main PC on all the time. Since I am doing a backup anyway, using COPS on that backup was the ideal solution.