I have a bunch of similar windows machines that I need to back up. Naturally I would like to have some deduplication to avoid backing up same files again and again. So I backed up clean empty Windows server as a base job. Now when I run a full backup (the first backup is going to be a full backup automatically) then in the log it clearly says that it is using base jobs and how many files from that base job were used for deduplication (excerpt from log):
----8<-------8<-------8<-------8<-------8<-------8<--- 2019-05-05 13:51:14 pool-director JobId 2384: Using BaseJobId(s): 1 2019-05-05 15:27:06 pool-director JobId 2384: Bareos pool-director 19.1.2.1551874020.6df58d68c (01Feb19): JobId: 2384 Job: soldevqa09.2019-05-04_21.00.00_51 Backup Level: Full Client: "soldevqa09" 17.1.3 (01Mar17) Microsoft Windows Server 2008 R2 Standard Edition Service Pack 1 (build 7601), 64-bit,Cross-compile,Win64 FileSet: "Windows All Drives" 2018-12-13 19:20:05 Pool: "AI_Consolidated" (From Job FullPool override) Catalog: "MyCatalog" (From Client resource) Storage: "Consolidated01" (From Pool resource) Elapsed time: 1 hour 35 mins 51 secs Priority: 40 FD Bytes Written: 38,501,279,442 (38.50 GB) SD Bytes Written: 38,610,804,604 (38.61 GB) Rate: 6694.7 KB/s Software Compression: 58.2 % (lzo) Base files/Used files: 101285/81362 (80.33%) VSS: yes Encryption: no Accurate: yes ----8<-------8<-------8<-------8<-------8<-------8<--- Now, the very next backup in Always Incremental scheme does not care about base jobs anymore and backs up all the duplicate stuff that was not backed up at full backup because it already had these files in Base job. I just noticed that because next daily incremental after Full backup always is significantly larger than subsequent daily incrementals. Take look at the query output: ----8<-------8<-------8<-------8<-------8<-------8<--- +-------+------------+-------+---------------------+----------+--------+---------+ | jobid | client | level | starttime | jobfiles | gb | volumes | +-------+------------+-------+---------------------+----------+--------+---------+ | 32 | soldevqa09 | F | 2018-12-15 16:35:35 | 505,133 | 35.123 | 53 | | 396 | soldevqa09 | I | 2018-12-27 06:56:09 | 83,152 | 5.654 | 12 | | 220 | soldevqa09 | I | 2018-12-28 06:24:35 | 423 | 0.325 | 1 | | 236 | soldevqa09 | I | 2018-12-29 06:40:43 | 423 | 0.325 | 2 | | 263 | soldevqa09 | I | 2019-01-01 12:31:59 | 637 | 0.329 | 1 | | 287 | soldevqa09 | I | 2019-01-04 03:25:51 | 1,068 | 0.386 | 1 | | 312 | soldevqa09 | I | 2019-01-05 01:32:47 | 493 | 0.327 | 1 | | 337 | soldevqa09 | I | 2019-01-05 10:33:03 | 326 | 0.298 | 1 | | 365 | soldevqa09 | I | 2019-01-05 19:19:31 | 298 | 0.305 | 1 | | 1,401 | soldevqa09 | F | 2019-02-26 08:17:56 | 508,974 | 40.382 | 81 | | 2,392 | soldevqa09 | I | 2019-04-25 03:44:36 | 24,450 | 7.039 | 15 | | 2,216 | soldevqa09 | I | 2019-04-26 03:40:34 | 545 | 0.197 | 1 | | 2,239 | soldevqa09 | I | 2019-04-27 03:44:02 | 722 | 0.197 | 3 | | 2,265 | soldevqa09 | I | 2019-04-30 04:07:52 | 1,125 | 0.200 | 1 | | 2,289 | soldevqa09 | I | 2019-05-01 04:06:18 | 2,307 | 0.198 | 1 | | 2,313 | soldevqa09 | I | 2019-05-02 04:17:25 | 583 | 0.275 | 1 | | 2,337 | soldevqa09 | I | 2019-05-03 04:23:57 | 4,215 | 0.227 | 1 | | 2,361 | soldevqa09 | I | 2019-05-04 04:27:54 | 2,061 | 0.200 | 1 | | 2,384 | soldevqa09 | F | 2019-05-05 13:51:14 | 510,473 | 35.857 | 54 | | 2,410 | soldevqa09 | I | 2019-05-07 04:53:22 | 82,097 | 5.666 | 12 | +-------+------------+-------+---------------------+----------+--------+---------+ ----8<-------8<-------8<-------8<-------8<-------8<--- Is this a bug or Always Incremental has never been designed to play well with Base jobs or I am doing something wrong here? Thanks. Neal -- You received this message because you are subscribed to the Google Groups "bareos-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/bareos-users/987b9e76-01bd-4e4c-8fae-d41abac6cd88%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
