Hi,

I recently upgraded bareos from 14.2.2 to 15.2.2. Since that time
my NDMP-smtape backups (from a NetApp-device) fails with the
blocksize error.


"<hostname>-dir JobId 55216: Fatal error: For SMTAPE NDMP jobs the NDMP
blocksize needs to be in increments of 4096 bytes, but is set to 64512 "


So I found this error description in earlier posts (regarding the
14-version);
also this error is mentioned in
http://doc.bareos.org/master/html/bareos-manual-main-reference.html#x1-23500019.15

Solution suggested is to adapt the Blocksize to something like 256k -
but the place to set this option is not clearly described. It says: In version 
greater 14 use
the pool.conf
(https://www.bareos.org/en/Whitepapers/articles/Speed_Tuning_of_Tape_Drives.html);
in the master reference (
http://doc.bareos.org/master/html/bareos-manual-main-reference.html#setblocksizes
) it says this option should go into the Device-configuration.

I tried to set the option in pool.conf, bareos-sd.conf, (device and
storage), even in the NDMP part and
in the "meta" Options in the job-descriptions .. all no effect. Either I
got the error "wrong place for this option" or it just had no effect on the 
output - it still reads Default blocksize 64512

I guess that is because an SMTape is not really a tape..

So I downgraded bareos to 14.2.2 and voila.. everything is running
again. (!)

Is there a difference in the SMTape - portion of the software regarding
the blocksize issue?
Or what could be the reason for the failure after the upgrade?

This is what the status of the client looks like in 14.2.2:
(SMTape with 240 Data_Block_Size (!))

  Backup type info of smtape format
    attrs      0x60
    set        BASE_DATE=-1
    set        DATA_BLOCK_SIZE=240
    set        SMTAPE_ALL_SNAPSHOTS=N
    set        SMTAPE_BREAK_MIRROR=N
    set        SMTAPE_DELETE_SNAPSHOT=N
    set        SMTAPE_MODE=DR
    set        SMTAPE_NO_DISK_WRITE=N
    set        SMTAPE_SNAPSHOT_NAME=invalid
    set        SMTAPE_BACKUP_SET_ID=invalid
    set        TYPE=smtape
    set        RENAME_SUPPORTED=Y

  Backup type info of dump format
    attrs      0x447c
    set        BASE_DATE=-1
    set        DATA_BLOCK_SIZE=63
    set        DEBUG=N
    set        DIRECT=N
    set        DMP_NAME=
    set        ENHANCED_DAR_ENABLED=Y
    set        EXCLUDE=
    set        EXTRACT=Y
    set        EXTRACT_ACL=Y
    set        FORCE=N
    set        HIST=N
    set        IGNORE_QTREES=N
    set        LEVEL=0
    set        LIST=N
    set        LIST_QTREES=N
    set        MULTI_SUBTREE_NAMES=
    set        NDMP_UNICODE_FH=N
    set        NO_ACLS=N
    set        NON_QUOTA_TREE=N
    set        NOWRITE=N
    set        RECOVER_FULL_PATHS=N
    set        RECURSIVE=Y
    set        REPLICATE=N
    set        RESTART=N
    set        TYPE=dump
    set        UPDATE=N
    set        VERBOSE=N
    set        RENAME_SUPPORTED=Y

best greetings,
Gunther

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