Thread: KOBO H20 and Calibre
View Single Post
Old 11-12-2018, 05:47 PM   #3
davidfor
Grand Sorcerer
davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.davidfor ought to be getting tired of karma fortunes by now.
 
Posts: 24,905
Karma: 47303824
Join Date: Jul 2011
Location: Sydney, Australia
Device: Kobo:Touch,Glo, AuraH2O, GloHD,AuraONE, ClaraHD, Libra H2O; tolinoepos
Quote:
Originally Posted by intwtl View Post
Hi,

I have a Kobo Aura H20 Edition 2.

When I try to sync with Calibre it takes between 20 an d30 minutes to read what books are on the device.

Onboard storage is 5.2 GB of 6.7 available.

My old Sony reader had the same items on it and it took less than a minute to read what books are on the device.
How many books are on the device? With 1.5GB used, I wouldn't expect that many. Less than 2000 books, probably less than 1000. And calibre should be able to fetch that number of books in less than a minute. It will be longer if the metadata.calibre file is missing or damaged, but still under 10 minutes. For the record, my Glo HD takes less than 2 minutes with nearly 5000 books. I have had reason to connect with the metadata.calibre, and that was still less than five minutes.

It will take longer if there are a lot of changes in the collections of series. I did change the collections management settings last night and the next connect on the Glo HD took about 8 minutes in the "Sending metadata to device" job. That was because it removed a lot of collections.

It is possible the issue is the database on the device. If it is corrupt, this can take longer. But, usually if it is bad enough to cause performance problems, it will raise an error when calibre is accessing it. If you have my Kobo Utilities plugin installed, you can check the database with it. That also has a compress option which will reorganise the database and can help performance.

The only other things I can think of is if something else is access the device at the same time. A virus/malware scanner would be the obvious thing. Or if the device was being mounted as a USB1 device instead of USB2. That would slow things down.
davidfor is offline   Reply With Quote