The error not a multiple of 1024 is similar to the not
a multiple of 512 error. It means that there was some
kind of packet loss during the backup. Netbackup send
everything in increments of 512. If a packet of
information that is to be sent is not 512 then
NetBackup will pad it with extra data. At the end of
the backup, NetBackup does a check to see if the data
is divisible by 512 or 1024 and if it is not, then it
knows the data is not reliable that was backed up.
This is almost always caused by packet loss during the
backup. NetBackup does not know where or when the loss
ocurred so it fails the entire backup. 


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"A wise man once said 'Wherever you go, there you are'"
      -Mike Brady