# Enormous backup size? **URL:** \ **Category:** Support\ **Created:** [February 16, 2019, 11:19pm UTC](https://forum.duplicati.com/t/enormous-backup-size/6359 "2019-02-16T23:19:41Z")\ **Posts on this page:** 7\ **Page:** 1
**Author:** ![endolith](https://forum.duplicati.com/user_avatar/forum.duplicati.com/endolith/32/2702_2.png) [@endolith](https://forum.duplicati.com/u/endolith)\ **Post date:** [February 16, 2019, 11:19pm UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/1 "2019-02-16T23:19:41Z")
I’m trying Duplicati with B2 storage. I selected a bunch of files that can’t possibly be more than 2.5 TB, probably more like 1 TB, but Duplicati says it’s backing up 650 TB!!! ![2664956 files (642.70 TB) to go at 836.02 KB/s](https://forum.duplicati.com/uploads/default/original/2X/5/52645afb0445807406e6c0112092dea7cf8daff1.png) Is this a bug? Or maybe it’s due to following symlinks and backing up the same data multiple times? How do I find out what it thinks it’s backing up? ---
**Author:** ![endolith](https://forum.duplicati.com/user_avatar/forum.duplicati.com/endolith/32/2702_2.png) [@endolith](https://forum.duplicati.com/u/endolith)\ **Post date:** [February 16, 2019, 11:27pm UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/2 "2019-02-16T23:27:24Z")
Also if I try to stop the backup, edit the configuration, and start again, it won’t start again, I get an error “The database file is locked database is locked”: ![The database file is locked database is locked](https://forum.duplicati.com/uploads/default/original/2X/5/582b6b2aa354f1f32588ddb9d823116265af1869.png) This is on Ubuntu 18.04.02 using the latest .deb file. ---
**Author:** ![endolith](https://forum.duplicati.com/user_avatar/forum.duplicati.com/endolith/32/2702_2.png) [@endolith](https://forum.duplicati.com/u/endolith)\ **Post date:** [February 16, 2019, 11:34pm UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/3 "2019-02-16T23:34:49Z")
I tried to select just 2 folders for backup, with total size of 3 GB, and now it says the backup size is negative!?! ![6 files (-615 bytes) to go at 715.39 KB/s](https://forum.duplicati.com/uploads/default/original/2X/7/7d06c71ddd97ddcaabed3c8726bbb98c313a5e21.png) ---
**Author:** ![samw](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/9de053/32.png) [@samw](https://forum.duplicati.com/u/samw)\ **Post date:** [February 17, 2019, 3:43am UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/4 "2019-02-17T03:43:27Z")
Can you enable debug logging and provide the log file. Remove any sensitive info from the log before uploading. ---
**Author:** ![endolith](https://forum.duplicati.com/user_avatar/forum.duplicati.com/endolith/32/2702_2.png) [@endolith](https://forum.duplicati.com/u/endolith)\ **Post date:** [February 17, 2019, 6:42am UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/5 "2019-02-17T06:42:39Z")
Can you link to instructions on how to do that? ---
**Author:** ![samw](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/s/9de053/32.png) [@samw](https://forum.duplicati.com/u/samw)\ **Post date:** [February 17, 2019, 6:54am UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/6 "2019-02-17T06:54:45Z")
Execute the job as a command line and use the following options, log-file-level set to profiling and log-file option to send output to a file. ---
**Author:** ![endolith](https://forum.duplicati.com/user_avatar/forum.duplicati.com/endolith/32/2702_2.png) [@endolith](https://forum.duplicati.com/u/endolith)\ **Post date:** [February 17, 2019, 8:33pm UTC](https://forum.duplicati.com/t/enormous-backup-size/6359/7 "2019-02-17T20:33:10Z")
I haven’t figured out how to do the debug thing yet, but running more backups, I get error messages: ![Screenshot%20from%202019-02-17%2015-16-42](https://forum.duplicati.com/uploads/default/original/2X/b/b6f7e56cf14f5161ddaf890ef602f77bb63ffec2.png) If I click on Show, it doesn’t show me the errors, it just shows me “Log data” with a list of dates, with no indication that they are clickable: ![Screenshot%20from%202019-02-17%2015-16-59](https://forum.duplicati.com/uploads/default/original/2X/6/6cad82eb666609257bf8e6a03ecdcb7e8ec77493.png) But they are. If you click on them it then shows a big dump of text: ![Screenshot%20from%202019-02-17%2015-23-40](https://forum.duplicati.com/uploads/default/original/2X/c/cd6e6ebea7b10ffa3d242317a8bea330a6e5ae4b.png) and if you scroll down enough, there are some nested brackets with this inside: `Errors: [2019-02-17 15:04:15 -05 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-CheckingErrorsForIssue1400]: Checking errors, related to #1400. Unexpected result count: 0, expected 1, hash: 8cqGCuMqPNZVNoHXNJlsIZ3tBwreriRrTUa42BO15oA=, size: 14424, blocksetid: 285924, ix: 129, fullhash: +gNLX5B4EQxl5tACu9u7gkcoC9TIcjc3GBWVYkJ2x4g=, fullsize: 13224024, 2019-02-17 15:04:15 -05 - [Error-Duplicati.Library.Main.Database.LocalBackupDatabase-FoundIssue1400Error]: Found block with ID 569826 and hash 8cqGCuMqPNZVNoHXNJlsIZ3tBwreriRrTUa42BO15oA= and size 10320 ]` This is a pretty bad user experience. Yet it’s the highest-rated backup solution on AlternativeTo, so the others must be even worse?