I’ve run into a problem the last few days. Kopia is backing up 24TB of data (as reported by Unraid) to a device that has 40 TB of disk space. This has been working fine for the better part of 6 months. Now for some reason the target 40 TB drive is completely full. I ran “kopia blob gc --advanced-commands=enabled --delete=yes” to clear out any unreferenced blobs and that cleared up several hundred GB. Once the snapshot ran, it filled the drive again. Maintenance refuses to run as there is no free disk space. What is consuming all this extra disk space? Kopia version is 0.15.0.
kopia content stats
Total Bytes: 37.7 TB
Total Packed: 37.4 TB (compression 0.7%)
(uncompressed) count: 6802142 size: 31.9 TB
pgzip-best-speed count: 1644280 size: 5.7 TB packed: 5.5 TB compression: 4.8%
zstd-fastest count: 287620 size: 1.1 GB packed: 395.5 MB compression: 62.6%
Average: 4.3 MB
0 between 0 B and 10 B (total 0 B)
7876 between 10 B and 100 B (total 475.9 KB)
383017 between 100 B and 1 KB (total 149.3 MB)
178478 between 1 KB and 10 KB (total 661.8 MB)
184580 between 10 KB and 100 KB (total 7.1 GB)
115393 between 100 KB and 1 MB (total 49.3 GB)
7864698 between 1 MB and 10 MB (total 37.4 TB)
0 between 10 MB and 100 MB (total 0 B)
Cache size appears to be about 17.6 GB. Data is about half video. Virtual machine backups, user data, ect.
As far as I’m aware. I only have one compression algo set. PGZIP-BEST-SPEED is defined in the global policy. I have a second policy for this specific backup job and it inherits it’s compression algo from the global policy.