# Why failed because of disk space?

**URL:** https://forum.duplicati.com/t/why-failed-because-of-disk-space/5727
**Category:** Support
**Created:** [December 21, 2018, 12:37am UTC](https://forum.duplicati.com/t/why-failed-because-of-disk-space/5727 "2018-12-21T00:37:13Z")
**Posts on this page:** 1
**Showing post:** 5

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### Author: ![ts678](https://forum.duplicati.com/letter_avatar_proxy/v4/letter/t/8491ac/32.png) [@ts678](https://forum.duplicati.com/u/ts678)
#### Post date: [December 21, 2018, 1:41pm UTC](https://forum.duplicati.com/t/why-failed-because-of-disk-space/5727/5 "2018-12-21T13:41:32Z")

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> [@el\_pedriyo](#):
>
> If I config the queue to 1 element, that would be also fine, right?

Should be fine, as far as I know. If somehow you get into a slow spot of generating tmp files, you might miss some upload opportunity by reducing the amount of buffering, but that would merely delay finish of backup.

> [@el\_pedriyo](#):
>
> the final destination will end up with thousands of files

Yes, it can happen. With some storage types there are limits that one can hit. The 5000 limit that OneDrive either had or still has causes trouble. I haven’t heard much of people finding a Google Drive limit, however enormous numbers of files (or for that matter, hash blocks --. deduplication chunks of files) cause tracking done with SQL operations on the local job database to grow slow. Scaling for large sources isn’t very good. Sometimes people raise their [–blocksize](https://duplicati.readthedocs.io/en/latest/06-advanced-options/#blocksize), because the default 100kb means tracking 6TB/100kb=about 64 million hash blocks, and if the database ever needs to be recreated, doing those inserts will be very slow…

Using huge dblock-size can backfire at restore time because file updates are put in whatever dblock file is being produced at the time, so a restore might have to download many of those big files to gather chunks.

[Duplicati creates to many backup files](https://forum.duplicati.com/t/duplicati-creates-to-many-backup-files/5437) is a recent discussion on settings to use. Some depends on usage.

> [@el\_pedriyo](#):
>
> Also wanted to know if it is normal to only be uploading at 180mbps or less to google drive when I have a connection of 600mbps of upload?

Probably reasonable. A single TCP connection can only push so much data out, and Duplicati doesn’t yet have the ability to start parallel upload threads, like some programs do when they try to fill up the network. What sort of single-threaded upload speeds can you get from something else to a far-remote destination?

> [@el\_pedriyo](#):
>
> I have been searching and on google drive, it seems I have lots of 10G files, but also a lot of 7MB files, any idea for that?

Names would help. The ones Duplicati makes usually begin with `duplicati-` and include dblock, dindex, or dlist in the name. The only ones that use --dblock-size are the dblock files. Other files can be large or small.

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