Hello everyone,
I use Bacula for 4 months and I have several questions in order to optimize
it.
I am backing up servers in the default file pool and migrate them on some
LTO-6 cartridges like this :
Full backups sat-sun then migration to LTO-6 “L” pool
Diff/incr mon-Thursday then migration to LTO-6 “M” pool
I use SQL queries to perform migrations selection jobs as you will see
further.
And now my questions…
1°) My LTO-6 is a single drive (not autochanger), Is my drive definition
correct in bacula-sd.conf ?
2°) I use Maximum Concurrent Jobs = 1 in pool definition and bacula-sd
because with 4, my drive swap a lot and migrate rate was about 10 Mb/s
only. With MCJ=1 rate is above 80 Mb/s.
This was fine with my previous drive LTO-4 drive. I don’t know why it’s
works badly with LTO-6.
Is it correct ? How is it possible to have several migration jobs to a tape
drive at the same time.
3°) I have 2 jobs for each migration job : 1 backup + 1 migration, in
bconsole, baculum, and mails… Not efficient for exploitation, is it
possible to have only 1 job (the migration one) ?
Bconsole example :
14975 Migr Full 0 0 Migration LTO_INF_F is running
14976 Back Full 0 0 Backup W_INF is running
4°) In client definition migration jobs I use these settings to avoid lots
of children jobs :
Allow Duplicate Jobs = No
Cancel Running Duplicates = Yes
Cancel Queued Duplicates = Yes
I confess I do not understand how it works.
5°) In Windows, how to filter thumbs.db files in backup jobs ?
6°) How to verify migration jobs without connecting to the client, just a
cartridge reading verification ?
7°) For bonus.. some advices ? :-)
I know it is lots of questions…
Thanks in advance
Here is my configuration files :
*Bacula-sd.conf*
Storage { # definition of myself
Name = 111401L111BCK-sd
SDPort = 9103 # Director's port
WorkingDirectory = "/opt/bacula/working"
Pid Directory = "/opt/bacula/working"
Plugin Directory = "/opt/bacula/plugins"
Maximum Concurrent Jobs = 20
}
#
# List Directors who are permitted to contact Storage daemon
#
Director {
Name = 111401L111BCK-dir
}
#
# Restricted Director, used by tray-monitor to get the
# status of the storage daemon
#
Director {
Name = 111401L111BCK-mon
Monitor = yes
}
Device {
Name = "LTO 6"
Media Type = LTO-6
Device Type = Tape
Archive Device = /dev/nst0
AutomaticMount = yes; # when device opened, read it
#AlwaysOpen = no; #Testé mais semble poser problème
lors des migrations (bande non reconnue)
AlwaysOpen = yes;
RemovableMedia = yes;
RandomAccess = no;
Maximum File Size = 6GB
Maximum Concurrent Jobs = 1
Changer Command = "/opt/bacula/scripts/mtx-changer %c %o %S %a %d"
Changer Device = /dev/sg0
AutoChanger = no
}
*Bacula-dir.conf*
Director { # define myself
Name = 111401L111BCK-dir
DIRport = 9101 # where we listen for UA connections
QueryFile = "/opt/bacula/scripts/query.sql"
WorkingDirectory = "/opt/bacula/working"
PidDirectory = "/opt/bacula/working"
Maximum Concurrent Jobs = 30
Messages = Daemon
DirPort = 9101
}
# File Pool definition
Pool {
Name = File
Pool Type = Backup
Recycle = yes # Bacula can automatically recycle
Volumes
AutoPrune = yes # Prune expired volumes
ActionOnPurge = truncate
Volume Retention = 16 days
Maximum Volume Bytes = 50G # Limit Volume size to something
reasonable
Maximum Volumes = 500 # Limit number of Volumes in Pool
Label Format = "Vol-" # Auto label
Storage = File1
}
# Definition of LTO-6 tape Autochanger device
Storage {
Name = LTODrive-6
Address = 111401L111BCK # N.B. Use a fully qualified name
here
SDPort = 9103
Device = "LTO 6" # must be same as Device in Storage
daemon
Media Type = LTO-6 # must be same as MediaType in Storage
daemon
Maximum Concurrent Jobs = 1
}
Pool {
Name = L
Pool Type = Migration
Recycle = yes # Bacula can automatically recycle
Volumes
AutoPrune = yes # Prune expired volumes
ActionOnPurge = truncate
Volume Retention = 185 days # 6 mois
#Maximum Volume Bytes = 50G # Inutile pour les bandes
Maximum Volumes = 50 # Limit number of Volumes in Pool
Label Format = "L_" # Auto label
Storage = LTODrive-6
}
# Tape Incremental Pool definition
Pool {
Name = M
Pool Type = Migration
Recycle = yes # Bacula can automatically recycle
Volumes
AutoPrune = yes # Prune expired volumes
ActionOnPurge = truncate
Volume Retention = 185 days # 6 mois
#Maximum Volume Bytes = 50G # Inutile pour les bandes
Maximum Volumes = 50 # Limit number of Volumes in Pool
Label Format = "M_" # Auto label
Storage = LTODrive-6
}
Schedule {
Name = "Tape-LTO_F"
Run = level=Full NextPool=L mon at 03:00
#Run = level=Full NextPool=L fri at 14:35
Run = level=Full NextPool=L mon-fri at 15:10
}
Schedule {
Name = "Tape-LTO_I"
#Run = level=Incremental NextPool=M Tue-Fri at 07:45
#Run = level=Incremental NextPool=M Tue-Fri at 10:29
}
Client.conf
FileSet {
Name = "F W_INF" #Windows Server 2008
Ignore FileSet Changes = yes # Evite d'avoir à relancer une sauvegarde
complète après une modification du fileset
Include {
Options {
signature = MD5
#Compression=GZIP
IgnoreCase = Yes
}
File = "E:/Data
}
}
Client {
Name = w11140101inf-fd
FDPort = 9102
Catalog = MyCatalog
File Retention = 14 months
Job Retention = 14 months
#Job Retention = 1 week
AutoPrune = Yes # Prune expired Jobs/Files
}
Job {
Name = "Backup W_INF"
Type = Backup
Level = Full
#Enabled = no
Client = w11140101inf-fd
Accurate = Yes
FileSet = "F W_INF"
Schedule = "INF"
MaxRunTime = 115200
#DifferentialMaxRunTime = 32400 # 9h (22h30-07h30)
#IncrementalMaxRunTime = 32400 # 9h (22h30-07h30)
Storage = File1
Messages = Standard
Pool = File
SpoolAttributes = yes
Priority = 9
Write Bootstrap = "/opt/bacula/working/%c.bsr"
}
Job {
Name = "Migration LTO_INF_F"
Type = Migrate
Level = Full
#Enabled = no
Client = w11140101inf-fd
FileSet = "F W_INF"
Schedule = "Tape-LTO_F"
Messages = Standard
Pool = File
Next Pool = L
Maximum Concurrent Jobs = 1
Selection Type = SQLQuery
Selection Pattern = "SELECT Jobid FROM public.job Where name='Backup
W_INF'and level='F' and Type='B' and jobfiles>0 and poolid =2;"
Allow Duplicate Jobs = No
Cancel Running Duplicates = Yes
Cancel Queued Duplicates = Yes
# PurgeMigrationJob= no Ne migre pas le backup du bandes uniquement
(supprime le disk job)
#Storage = LTODrive
}
Job {
Name = "Migration LTO_INF_I"
Type = Migrate
Level = Incremental
Client = w11140101inf-fd
#Enabled = no
FileSet = "F W_INF"
Schedule = "Tape-LTO_I"
Messages = Standard
Pool = File
Next Pool = M
Maximum Concurrent Jobs = 1
Selection Type = SQLQuery
Selection Pattern = "SELECT * FROM public.job Where name='Backup W_INF' and
Type='B' and jobfiles>0 and poolid =2 and (level='D' or level='I');"
Allow Duplicate Jobs = No
Cancel Running Duplicates = Yes
Cancel Queued Duplicates = Yes
# PurgeMigrationJob= no Ne migre pas le backup du bandes uniquement
(supprime le disk job)
#Storage = LTODrive
}
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