Moving the Calibre library from one drive to another

Andrew7 · 01-09-2015, 10:34 PM

I was wondering if someone could explain to me why my Calibre library has grown about 42.5 % in size simply because I moved my library from one drive to another?

To be more specific after upgrading Calibre to 2.15, I decided to move my library to a larger drive as I was running out of space on the current drive. I used Calibre to do the move and ended up with a Calibre directory some 119 Gbytes in size containing over 41,000 files and 21,000 folders. However I started with a Calibre directory on my old drive of only 83.5 GB in size containing only 29,000 files and 15,000 folders! Where did I get an extra 35 GB and 12,000 files from? I presume if I did a simple copy and paste I would end up with exactly what I started with ie. a 83.5 GB library.

Note: The number of books in my library as noted by Calibre has remained unchanged after the move.

PeterT · 01-09-2015, 10:48 PM

What happens if you run Library Maintenance | Check Library and once that has finished, select the optional "Check if the files in your library match the infomation in the database" that will see what extra files exist?

Andrew7 · 01-09-2015, 11:04 PM

I ran the tool as you suggested and it produced a total of 5 files. By their titles, I am pretty sure they were there before the move but even if they weren't, 5 files out of 12,118 extra files is a drop in the bucket.

Thanks for your quick response and suggestion even though the mystery remains.

Andrew

kovidgoyal · 01-09-2015, 11:09 PM

Do some investigation. Open a few folders in the old and new library locations and see what is taking the extra space.

01-09-2015, 10:34 PM	#1
Andrew7 Member Posts: 10 Karma: 43454 Join Date: Jan 2015 Location: Toronto Device: Kobo Arc 10HD	Moving the Calibre library from one drive to another I was wondering if someone could explain to me why my Calibre library has grown about 42.5 % in size simply because I moved my library from one drive to another? To be more specific after upgrading Calibre to 2.15, I decided to move my library to a larger drive as I was running out of space on the current drive. I used Calibre to do the move and ended up with a Calibre directory some 119 Gbytes in size containing over 41,000 files and 21,000 folders. However I started with a Calibre directory on my old drive of only 83.5 GB in size containing only 29,000 files and 15,000 folders! Where did I get an extra 35 GB and 12,000 files from? I presume if I did a simple copy and paste I would end up with exactly what I started with ie. a 83.5 GB library. Note: The number of books in my library as noted by Calibre has remained unchanged after the move.

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01-09-2015, 10:48 PM	#2
PeterT Grand Sorcerer Posts: 13,693 Karma: 79983758 Join Date: Nov 2007 Location: Toronto Device: Libra H2O, Libra Colour	What happens if you run Library Maintenance \| Check Library and once that has finished, select the optional "Check if the files in your library match the infomation in the database" that will see what extra files exist?

01-09-2015, 11:04 PM	#3
Andrew7 Member Posts: 10 Karma: 43454 Join Date: Jan 2015 Location: Toronto Device: Kobo Arc 10HD	I ran the tool as you suggested and it produced a total of 5 files. By their titles, I am pretty sure they were there before the move but even if they weren't, 5 files out of 12,118 extra files is a drop in the bucket. Thanks for your quick response and suggestion even though the mystery remains. Andrew

01-09-2015, 11:09 PM	#4
kovidgoyal creator of calibre Posts: 45,604 Karma: 28548974 Join Date: Oct 2006 Location: Mumbai, India Device: Various	Do some investigation. Open a few folders in the old and new library locations and see what is taking the extra space.

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