Always Incremental Backup storage definition

[vlads...@gmail.com]

As stated in the docs, " For the Always Incremental Backup Scheme at least two storages are needed. "

Does this mean 2+ storage-daemons?

May i use this scheme with 1 SD?

[Brock Palen]

yeah you can do it with 1 SD, but you needs multiple devices one for each pool so when the consolidations happens it can read from one device and write to the other.

In my case I have one storage with multiple devices that can read both the AI-Incremental and AI-Consolidated pool. (I also have one for an LTO that jobs migrate to over time).

Eg in my sd.conf
Device {
Name = FileStorage
Media Type = File
Archive Device = /mnt/bacula
LabelMedia = yes; # lets Bareos label unlabeled media
Random Access = yes;
AutomaticMount = yes; # when device opened, read it
RemovableMedia = no;
AlwaysOpen = no;
Spool Directory = /mnt/spool/FileStorage
Maximum Job Spool Size = 80000000000
Maximum Spool Size = 160000000000
Maximum Concurrent Jobs = 1
}

Device {
Name = FileStorage2
Media Type = File
Archive Device = /mnt/bacula
LabelMedia = yes; # lets Bareos label unlabeled media
Random Access = yes;
AutomaticMount = yes; # when device opened, read it
RemovableMedia = no;
AlwaysOpen = no;
Spool Directory = /mnt/spool/server-vfull
Maximum Job Spool Size = 80000000000
Maximum Spool Size = 160000000000
Maximum Concurrent Jobs = 1
}
…..

but my Storage {} config in dir.conf has multiple devices

Storage {
Name = File
# Do not use "localhost" here
Address = <snip> # N.B. Use a fully qualified name here
Password = “<snip>"
Device = FileStorage
Device = FileStorage2
Device = FileStorage3
Device = FileStorage4
Device = FileStorage5
# number of devices = Maximum Concurrent Jobs
Maximum Concurrent Jobs = 5
Media Type = File
Heartbeat Interval = 60
}


So my on disk volumes can be managed by 5 ‘devices’ think of them as virutal tape drives. One can read from a volume, and one can write to the another.

Brock Palen
bro...@mlds-networks.com
www.mlds-networks.com
Websites, Linux, Hosting, Joomla, Consulting

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[vlads...@gmail.com]

 (I also have one for an LTO that jobs migrate to over time).  

Do you save full (Virtual Full?) backups to tape? I would also like to save old full backups (stored on disk) to tape for long term storage. 

Now I use Full backups (every week) to HDD and incremental (every day) backups to HDD. Old Full backups are then migrated to tape. 

But I want to try always incremental backups :)

понедельник, 11 января 2021 г. в 15:51:43 UTC+2, bro...@mlds-networks.com:

[vlads...@gmail.com]

In Pools definitions should i use my SD name as "Storage"?

My director storage config:

Storage {

  Name = File

  Address = bar

  Password = "BB"

  Media Type = File

  Device = FileStorage

  Device = File1

  Device = File2

  Maximum Concurrent Jobs = 3

}

But when i trying to set the "Storage" option in the Pool definition to "File1", i'm getting an error:

Config error: Could not find config Resource "Storage" referenced on line 10 :   Storage = File1

So, in pools "AI-Incremental", "AI-Consolidated", "AI-Longterm" i need to use "File" as "Storage"?

понедельник, 11 января 2021 г. в 17:40:22 UTC+2, vlads...@gmail.com:

[Brock Palen]

You leave Storage in your Pool config as the Storage name, it’s telling the Pool “all the media for this pool can be accessed on Storage File and Storage {} says you can access any of the volumes of that pool on these three Devices FileStorage, File1, File2.

Again think of the Device as a virtual tape drive, If you had a tape library with 2 drives you would have 2 devices and each drive can read tapes from that pool.

Pool {
Name = AI-Incremental
Pool Type = Backup
Recycle = yes # Bareos can automatically recycle Volumes
Auto Prune = yes # Prune expired volumes
Volume Retention = 2 months # How long should jobs be kept?
Maximum Volume Bytes = 50G # Limit Volume size to something reasonable
Label Format = "AI-Incremental-"
Volume Use Duration = 7d
Storage = File
Next Pool = AI-Consolidated # consolidated jobs go to this pool
Action On Purge=Truncate
}

Get this working first and then ping me back about my migrations, I do it for two reasons, one is I have limited disk space and cannot hold all backups on them. I also take a long term archive job I take off site.

Brock Palen
bro...@mlds-networks.com
www.mlds-networks.com
Websites, Linux, Hosting, Joomla, Consulting

> To view this discussion on the web visit https://groups.google.com/d/msgid/bareos-users/b6a6f89a-ba9d-4cf2-8afa-9b1dffc901cdn%40googlegroups.com.

[vlads...@gmail.com]

Can i set the Volume Retention period for Consolidated pool to somethins reasonable? :) 14 days, on example..? :)

понедельник, 11 января 2021 г. в 19:51:40 UTC+2, bro...@mlds-networks.com: