Deja Dup Backup taking hours!

asked 2015-01-31 03:41:00 -0500

deshmukh gravatar image

updated 2015-02-04 00:34:37 -0500

Running Fedora 21 Workstation.

I am taking backup of my home folder on an external hard disk (USB3) with Deja Dup. The total size of home folder is about 200gb.

It has taken more than 20 hours over multiple sessions, but the backup is not yet complete.

By multiple sessions, I mean, I started taking a backup, but clicked on 'Resume Later' when I had to shut my computer down. When I started my computer again, I started the backup again.

But is it 'normal' for a 200gb backup to take that long? Is something wrong? How do I know if something is wrong?

I have looked at the 'Details' section in the backup window to know the culprit. It keeps backing up some especially large folders even when there is no change! I have identified ~/.thunderbird and ~/Music as two such folders

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Should not take this long. What file system is the destination drive? Did it ever come to an end?

florian gravatar imageflorian ( 2015-01-31 17:44:59 -0500 )edit

I didn't think deja-dup pauses and resumes, but I haven't checked on this.

Can you let it run in one go once and see how long it takes. If you click on the deja-dup notification, it'll show you the progress of the backup process.

FranciscoD_ gravatar imageFranciscoD_ ( 2015-02-03 06:07:24 -0500 )edit

@Florian the file system on the destination drive is ext4. Its a LUKS encrypted partition. It has NEVER come to an end.

@FranciscoD_ I can let it run without manually pausing it. But what will happen if I either shutdown the computer or suspend it? Will it auto-start? I have not enabled auto-backups yet.

Also, what do you mean by deja-dup notification? There is not any on my computer. Is it because of no-auto-backups?

deshmukh gravatar imagedeshmukh ( 2015-02-04 00:30:46 -0500 )edit

I mean whether I let it autobackup of backup manually, there's a deja-dup window that tells me what's happening. That way you'll get an idea of what's taking time.

Note that deja-dup doesn't merely copy your files, it uses incremental backups (google duplicity) which may take additional processing each time a fresh backup is created from scratch but would greatly speedup successive backups.

FranciscoD_ gravatar imageFranciscoD_ ( 2015-02-04 04:52:09 -0500 )edit

@FranciscoD_ precisely the point! If the backups are incremental, it should not back up files that have not changed since last time. But in my case, it keeps backing up my ~/.thunderbird folder even when I have not even opened Tbird since last backup session!

deshmukh gravatar imagedeshmukh ( 2015-02-04 09:06:00 -0500 )edit