Hello
I am writing to this mailing list to thanks Timo for dovecot 2 & mdbox. We have almost 30.000 active users and our life was sad with Maildir & backup: 24 hours for a full backup with bacula (zlib enabled maildirs, 1.4 TB). After switching to mdbox, the backup time is under 12 hours ! Instead of backing 17 millions files, with mdbox our backup is only of 1 million files, and that speeds up a lot the backup operation.
Timo, here you have detailed info about the bacula backup jobs, you can use them in the wiki if you desire. If you need aditional info (hardware specs, dovecot config, etc) I can share it.
*Maildir:*
|//Job: Backup_Linux_buzon_us.2011-01-21_19.03.26_38 Backup Level: Full Client: "buzon_us" 2.0.3 (06Mar07) x86_64-redhat-linux-gnu,redhat,Enterprise release FileSet: "Full Buzon" 2011-01-21 19:03:26 Pool: "Pool_Linux_Buzones_US" (From Job resource) Catalog: "MyCatalog" (From Client resource) Storage: "File" (From command line) Scheduled time: 21-ene-2011 19:03:20 Start time: 21-ene-2011 19:03:29 End time: 22-ene-2011 19:46:45 Elapsed time:*1 day 43 mins 16 secs* Priority: 10 FD Files Written: 16,903,801 SD Files Written:*16,903,801* FD Bytes Written: 1,445,943,227,706 (1.445 TB) SD Bytes Written: 1,448,983,971,450 (1.448 TB) Rate:*16247.3 KB/s* Software Compression: None VSS: no Encryption: no Accurate: no Volume name(s): Buzones_US_2 Volume Session Id: 26 Volume Session Time: 1295511704 Last Volume Bytes: 1,450,628,892,676 (*1.450 TB*) Non-fatal FD errors: 0 SD Errors: 0 FD termination status: OK SD termination status: OK Termination: Backup OK//|
*mdbox with mdbox_rotate_size=10m:*
|Build OS: x86_64-redhat-linux-gnu redhat Enterprise release JobId: 3587 Job: Backup_Linux_buzon_us.2011-02-07_08.13.52_53 Backup Level: Full (upgraded from Incremental) Client: "buzon_us" 2.0.3 (06Mar07) x86_64-redhat-linux-gnu,redhat,Enterprise release FileSet: "Full Buzon" 2011-01-21 19:03:26 Pool: "Pool_Linux_Buzones_US" (From Job resource) Catalog: "MyCatalog" (From Client resource) Storage: "File" (From command line) Scheduled time: 07-feb-2011 08:13:44 Start time: 07-feb-2011 08:13:54 End time: 07-feb-2011 19:43:50 Elapsed time:*11 hours 29 mins 56 secs* Priority: 10 FD Files Written:*1,148,780* SD Files Written: 1,148,780 FD Bytes Written:*1,537,062,152,773 (1.537 TB)* SD Bytes Written: 1,537,218,147,402 (1.537 TB) Rate:*37130.7 KB/s* Software Compression: None VSS: no Encryption: no Accurate: yes Volume name(s): Buzones_US_4|Buzones_US_5 Volume Session Id: 101 Volume Session Time: 1296724657 Last Volume Bytes: 438,873,898,586 (438.8 GB) Non-fatal FD errors: 0 SD Errors: 0 FD termination status: OK SD termination status: OK Termination: Backup OK|
Regards
Javier de Miguel
University of Seville