As I understand it people use multiple autochangers so that you can
read/write multiple
medias at the same time. VirtualFull would be a common use case.
On Fri, 8 Aug 2025 at 21:14, Rob Gerber <r...@craeon.net> wrote:
> Why different autochangers? Are they gong to different storage devices?
>
> Do you have multiple bacula SDs?
>
> I have briefly read through, but if the problem is that you want to direct
> jobs to use specific autochangers, i think you must use a unique mediatype
> for each autochanger. Otherwise, it may choose an autochanger at random,
> and obviously volumes present under different autochangers probably won't
> be accessible to each other.
>
> The second problem I see is that your pool specifies either autochanger as
> valid storage targets. So you provide your preferred storage target at
> runtime? Otherwise of course it's going to select one storage at random.
>
> Hope this helps. If you can reply with your goals for this configuration
> and the details I requested we should be able to figure this out.
> Robert Gerber
> 402-237-8692
> r...@craeon.net
>
> On Fri, Aug 8, 2025, 1:35 PM White, Daniel E. (GSFC-764.0)[AEGIS] via
> Bacula-users <bacula-users@lists.sourceforge.net> wrote:
>
>> I know WHAT is happening, just not WHY
>> I am hoping someone sees something obviously bogus in here.
>>
>> Extract from bacula-dir.conf :
>>
>> Autochanger {
>> Name = "Disk01-Incremental-Autochanger"
>> Address = "<SD Server Address>"
>> Autochanger = "Disk01-Incremental-Autochanger"
>> Device = "Disk01-Incremental-Autochanger"
>> MaximumConcurrentJobs = 10
>> MediaType = "DiskVolume"
>> Password = <redacted>
>> SdPort = 9103
>> }
>>
>> Autochanger {
>> Name = "Disk02-Incremental-Autochanger"
>> Address = "<SD Server Address>"
>> Autochanger = "Disk02-Incremental-Autochanger"
>> Device = "Disk02-Incremental-Autochanger"
>> MaximumConcurrentJobs = 10
>> MediaType = "DiskVolume"
>> Password = <redacted>
>> SdPort = 9103
>> }
>>
>> Pool {
>> Name = "Incremental"
>> ActionOnPurge = Truncate
>> AutoPrune = yes
>> LabelFormat = "IncVol-"
>> MaximumVolumeBytes = 536870912000
>> MaximumVolume = 20
>> PoolType = "Backup"
>> PurgeOldestVolume = yes
>> Recycle = yes
>> Storage =
>> "Disk01-Incremental-Autochanger","Disk02-Incremental-Autochanger"
>> StorageGroupPolicy = "FreeSpace"
>> VolumeRetention = 2 weeks
>> }
>>
>> Extract from bacula-sd.conf :
>>
>> Autochanger {
>> Name = "Disk01-Incremental-Autochanger"
>> ChangerCommand = "/dev/null"
>> ChangerDevice = "/dev/null"
>> Device =
>> "Disk01-Dev01-Incremental","Disk01-Dev02-Incremental","Disk01-Dev03-Incremental","Disk01-Dev04-Incremental","Disk01-Dev05-Incremental","Disk01-Dev06-Incremental","Disk01-Dev07-Incremental","Disk01-Dev08-Incremental","Disk01-Dev09-Incremental","Disk01-Dev10-Incremental"
>> }
>>
>> Autochanger {
>> Name = "Disk02-Incremental-Autochanger"
>> ChangerCommand = "/dev/null"
>> ChangerDevice = "/dev/null"
>> Device =
>> "Disk02-Dev01-Incremental","Disk02-Dev02-Incremental","Disk02-Dev03-Incremental","Disk02-Dev04-Incremental","Disk02-Dev05-Incremental","Disk02-Dev06-Incremental","Disk02-Dev07-Incremental","Disk02-Dev08-Incremental","Disk02-Dev09-Incremental","Disk02-Dev10-Incremental"
>> }
>>
>> Device {
>> Name = "Disk01-Dev01-Incremental"
>> AlwaysOpen = yes
>> ArchiveDevice = "/backups/Disk01/INCREMENTAL"
>> AutomaticMount = yes
>> DeviceType = File
>> LabelMedia = yes
>> MaximumConcurrentJobs = 5
>> MediaType = "DiskVolume"
>> RandomAccess = yes
>> RemovableMedia = no
>> }
>> ... repeat 39 for times changing Name and ArchiveDevice as needed
>>
>> Finally, the bacula.log extract showing the error:
>>
>>
>> 30-Jul 03:00 <Bacula Server>-dir JobId 36: Start Backup JobId 36,
>> Job=<Bacula Server>.2025-07-30_03.00.00_32
>> 30-Jul 03:00 <Bacula Server>-dir JobId 36: Connected to Storage
>> "Disk02-Incremental-Autochanger" at <SD Server Address>:9103 with TLS
>> 30-Jul 03:00 <Bacula Server>-dir JobId 36: Using Device
>> "Disk02-Dev05-Incremental" to write.
>> ...
>>
>> 30-Jul 03:00 <Bacula Server>-dir JobId 36: Storage
>> "Disk02-Incremental-Autochanger" was selected out of group of 2 available
>> storages. StorageGroupPolicy "FreeSpace" used
>> 30-Jul 03:00 <Bacula Server>-dir JobId 36: Connected to Client "<Bacula
>> Server>-fd" at <SD Server Address>:9102 with TLS
>> 30-Jul 03:00 <Bacula Server>-fd JobId 36: Connected to Storage at <SD
>> Server Address>:9103 with TLS
>> ...
>> 30-Jul 03:00 <Bacula Server>-dir JobId 36: Created new
>> Volume="IncVol-0007", Pool="Incremental", MediaType="DiskVolume" in catalog.
>> 30-Jul 03:00 <Bacula Server>-sd JobId 36: Labeled new Volume
>> "IncVol-0007" on File device "Disk02-Dev05-Incremental"
>> (/backups/Disk02/INCREMENTAL).
>> 30-Jul 03:00 <Bacula Server>-sd JobId 36: Wrote label to prelabeled
>> Volume "IncVol-0007" on File device "Disk02-Dev05-Incremental"
>> (/backups/Disk02/INCREMENTAL)
>> Termination: Backup OK
>>
>> Note that Disk02 is used
>> Volume "IncVol-0007" created here
>>
>> Subsequent jobs run and append to Volume "IncVol-0007"
>>
>> 03-Aug 03:00 <Bacula Server>-dir JobId 48: Connected to Storage
>> "Disk02-Incremental-Autochanger" at <SD Server Address>:9103 with TLS
>> 03-Aug 03:00 <Bacula Server>-dir JobId 48: Using Device
>> "Disk02-Dev08-Incremental" to write.
>> 03-Aug 03:00 <Bacula Server>-dir JobId 48: Storage
>> "Disk02-Incremental-Autochanger" was selected out of group of 2 available
>> storages. StorageGroupPolicy "FreeSpace" used
>> ...
>> 03-Aug 03:00 <Bacula Server>-sd JobId 48: Volume "IncVol-0007" previously
>> written, moving to end of data.
>>
>> Now we get the error:
>>
>> This time, the StorageGroupPolicy of "FreeSpace" picks Disk01 !
>>
>> 08-Aug 03:00 <Bacula Server>-dir JobId 65: Using Device
>> "Disk01-Dev06-Incremental" to write.
>> 08-Aug 03:00 <Bacula Server>-dir JobId 65: Storage
>> "Disk01-Incremental-Autochanger" was selected out of group of 2 available
>> storages. StorageGroupPolicy "FreeSpace" used
>> 08-Aug 03:00 <Bacula Server>-sd JobId 65: Warning: mount.c:216 Open of
>> File device "Disk01-Dev06-Incremental" (/backups/Disk01/INCREMENTAL) Volume
>> "IncVol-0007" failed: ERR=Could not
>> open(/backups/Disk01/INCREMENTAL/IncVol-0007,OPEN_READ_WRITE,0640): ERR=No
>> such file or directory
>> 08-Aug 03:00 <Bacula Server>-sd JobId 65: Marking Volume "IncVol-0007" in
>> Error in Catalog.
>>
>> =============================
>>
>> The volume's path is /backups/Disk02/INCREMENTAL/IncVol-0007
>> but Bacula is looking to write to /backups/Disk01/INCREMENTAL/IncVol-0007
>>
>> Here is the problem.
>>
>> The same line
>> StorageGroupPolicy = "FreeSpace"
>> is in each JobDefs resource in bacula-dir.conf
>>
>> Does anyone see a stupid mistake made on my part ?
>>
>> Does anyone see a way past this mess ?
>>
>> Thanks in advance.
>>
>>
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>> Bacula-users@lists.sourceforge.net
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>>
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