Hi, 

I'm running Bareos 15.2.3 on centos 6.

configured 60G spool size, but seems like bareos actually uses 1M and 2M 
spoolsize. I'm not able to find a pattern, but also seen 7M and 8M spoolsizes.
 
here are the messages from logs:

28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Spooling data ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Forward spacing Volume "Incr-3618" 
to file:block 0:220.
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: User specified Device spool size 
reached: DevSpoolSize=60,020,128,434 MaxDevSpoolSize=60,000,000,000
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Writing spooled data to Volume. 
Despooling 1,048,588 bytes ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Despooling elapsed time = 
00:00:01, Transfer rate = 1.048 M Bytes/second
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Spooling data again ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: User specified Device spool size 
reached: DevSpoolSize=60,021,177,022 MaxDevSpoolSize=60,000,000,000
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Writing spooled data to Volume. 
Despooling 2,097,176 bytes ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Despooling elapsed time = 
00:00:02, Transfer rate = 1.048 M Bytes/second
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Spooling data again ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: User specified Device spool size 
reached: DevSpoolSize=60,021,177,022 MaxDevSpoolSize=60,000,000,000
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Writing spooled data to Volume. 
Despooling 2,097,176 bytes ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Despooling elapsed time = 
00:00:01, Transfer rate = 2.097 M Bytes/second
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Spooling data again ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: User specified Device spool size 
reached: DevSpoolSize=60,021,177,022 MaxDevSpoolSize=60,000,000,000
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Writing spooled data to Volume. 
Despooling 2,097,176 bytes ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Despooling elapsed time = 
00:00:01, Transfer rate = 2.097 M Bytes/second

Some of the jobs fail after a while with the following errors:

28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Spooling data again ...
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: End of Volume at file 0 on device 
"DiskDeviceIncr1" (/data/bareos-storage/Incr), Volume "Incr-3618"
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Ready to read from volume 
"Incr-3621" on device "DiskDeviceIncr1" (/data/bareos-storage/Incr).
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Forward spacing Volume "Incr-3621" 
to file:block 0:999959905.
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Error: block.c:286 Volume data 
error at 0:999959905! Wanted ID: "BB02", got "  al". Buffer discarded.
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Fatal error: mac.c:636 Fatal 
append error on device "DriveDevice" (/dev/nst0): ERR=
28-Dec 08:19 muc1pro-backup-1-sd JobId 9648: Elapsed time=00:00:14, Transfer 
rate=20.81 M Bytes/second
28-Dec 08:19 muc1pro-backup-1-dir JobId 9648: Error: bsock_tcp.c:422 Write 
error sending 371 bytes to Storage 
daemon:muc1pro-backup-1.adm.financial.com:9103: ERR=Broken pipe

Before setting the spoolsize to 60GB, it was 512GB and didn't see 
behavior/erros like these. the spooling process was either filling up to 512G 
oder up to job size if less than 512GB.

Any clues why the spooling doesn't work correctly?

Thank you.
Robert

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