Forum Discussion

arky's avatar
arky
Level 2
12 years ago

Schedule backup attempts

Hi All Could you tell me what's the meaning of "Schedule backup attempts" in NetBackup? We just set this parametre as "1 time every 24 hours" and a scheduled job was failed at 1:00am on Feb 12. ...
Backup and Recovery
NetBackup
Solaris
Troubleshooting
  • Mark_Solutions's avatar
    Mark_Solutions
    12 years ago

    Do you have enough job streams to run all of your jobs straight away?

    Suppose the window opens at 1am but the job remains in a queue for hours and doesn't actuallt "start" until 4am .. then it will not be due to run again until 4am the next day.

    If it also then drops at the back of the queue and does not start until 6am then next day it cannot start until 6am .. and so on - this si what we call job creep caused by that type of scheduling.

    Of course if it starts to run at 6am it can carry on running outside of the window as it is only a start window .. but if it fails at 8am then you settings do not allow it to try again for 24 hours so the next night it cannot run at all

    Hope this makes sense

RamNagalla's avatar
RamNagalla
Moderator
12 years ago

hi 

please see the below note from admin guide about "Schedule backup attempts"

 

NetBackup considers the failure history of a policy to determine whether or not to
run a scheduled backup job. The Schedule backup attempts property sets the
timeframe for NetBackup to examine.
This property determines the following characteristics for each policy:
■ How many preceding hours NetBackup examines to determine whether to allow
another backup attempt (retry). By default, NetBackup examines the past 12 hours.
■ How many times a backup can be retried within that timeframe. By default,
NetBackup allows two attempts. Attempts include the scheduled backups that
start automatically or the scheduled backups that are user-initiated.
Consider the following example scenario using the default setting 2 tries every 12
hours:
■ Policy_A runs at 6:00 P.M.; Schedule_1 fails.
■ Policy_A is user-initiated at 8:00 P.M.; Schedule_2 fails.
■ At 11:00 P.M., NetBackup looks at the previous 12 hours. NetBackup sees one
attempt at 6:00 P.M. and one attempt at 8:00 P.M. The Schedulebackupattempts
setting of two has been met so NetBackup does not try again.
■ At 6:30 A.M. the next morning, NetBackup looks at the previous 12 hours.
NetBackup sees only one attempt at 8:00 P.M. The Schedule backup attempts
setting of two has not been met so NetBackup tries again. If a schedule window
is not open at this time, NetBackup waits until a window is open.
Note: This attribute does not apply to user backups and archives.
Schedule