# The incremental backup process is slow

**URL:** <https://kopia.discourse.group/t/the-incremental-backup-process-is-slow/1553>\
**Category:** Support\
**Created:** [November 7, 2022, 3:13am UTC](https://kopia.discourse.group/t/the-incremental-backup-process-is-slow/1553 "2022-11-07T03:13:08Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![ray](https://avatars.discourse-cdn.com/v4/letter/r/e9a140/32.png) [@ray](https://kopia.discourse.group/u/ray)\
**Post date:** [November 7, 2022, 3:13am UTC](https://kopia.discourse.group/t/the-incremental-backup-process-is-slow/1553/1 "2022-11-07T03:13:08Z")

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We create a snapshot for a big directory(about 28.9T)  
the full copy take more than one day, after the full copy is done, we try to test the incremental copy speed after 2 days, we use the default parameter: kopia snapshot create xxx  
but it seems the incremental copy take much long times, it running more than 16 hours:  
0 hashing, 128578 hashed (203.5 GB), 48060696 cached (28.7 TB), uploaded 44.1 GB (192 errors ignored), estimating…  
we plan to backup the directory every 6 hours, but it seems the incremental copy takes too long time, is there any way to improve it so we can backup the directory in time?

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**Author:** ![saviodsouza](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/saviodsouza/32/50_2.png) [@saviodsouza](https://kopia.discourse.group/u/saviodsouza)\
**Post date:** [November 9, 2022, 2:55am UTC](https://kopia.discourse.group/t/the-incremental-backup-process-is-slow/1553/2 "2022-11-09T02:55:46Z")

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Hi @ray,

Can you share some more details on the setup you have?

- basic config of the device running kopia
- Operating systems used
- Anti virus if any
- HDD or SSD
- Backend storage: krs/Samba/nfs/SFTP/ftp/rclone
- internet/network speed if you use remote backups
- defined compression policy if any

This would help to answer your questions better.

Sd

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**Author:** ![budy](https://yyz2.discourse-cdn.com/free1/user_avatar/kopia.discourse.group/budy/32/38_2.png) [@budy](https://kopia.discourse.group/u/budy)\
**Post date:** [November 10, 2022, 8:21am UTC](https://kopia.discourse.group/t/the-incremental-backup-process-is-slow/1553/3 "2022-11-10T08:21:33Z")

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Depending on how your data is organized, you will probably need to parallelize your snapshots. E.g., we are snapshotting a 77TB Samba server, which holds approx 400 shares in shy of an hour, by parallelizing and running a separate job for each share.

Running on a dual 10 core CPU, we spin up up to 15 seperate snapshot jobs at once.
