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			My libraries are on a SATA3 Toshiba HDD, the program code and configuration are on a Sandisk NVMe PCIe SSD.   
 
Biggest library is just shy of 131,000; they are public domain documents, not commercial books. I have a Test library which has fewer than a 100 books.  There is no significant difference performance-wise between the two libraries.  
    
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