User's Manual

128 Migration, release, recall, and deletion
Time step (TimeStep)
Phase factor (PhaseFactor)
Backup job priority (BackupJobPriority)
System administration job priority (SystemAdminPriority)
Default system allocation and job priority policy
Default system allocation and job priority policy is defined in the FSE configuration template for FSE system
configuration. For details, see ”Template for FSE system configuration” on page 253.
Partition allocation and job priority policy
When a new Partition Manager starts (for a new partition), it reads and sets the parameters for the new
partition. When a Partition Manager shuts down, the Resource Manager is notified in order to free up all
reserved drives for the respective partition; consequently, its parameters are not considered during resource
allocation.
Partition allocation and job priority policy parameters
The configuration parameters for the partition along with their definition and impact are listed below.
Definition System-wide factor by which the priority of the queued jobs is increased due to the age of
the job.
Impact The purpose of this parameter is to leverage the elapsed time (the time since the job was
started) and increase the priority of jobs that are waiting in the queue. The time factor is
multiplied by the number of seconds since the job started, and by the
JobTypePriority divided by 100. Note that if you set a value to 0 the job priorities
will not get their priorities increased due to the age factor.
For example, if the time-factor value is set to 10 and the job (Recall, Recall Priority = 80)
has been waiting in the queue for 60 minutes, its priority will be increased by 28800 (10
* 60 min * 60 * 80/100). This will ensure that this job will have a higher priority than
any new jobs added to the queue.
Definition System-wide factor by which the priority of each multi-phase job is increased.
Impact The purpose of this parameter is to increase the priority of multiple phase jobs (migration
to multiple copies or recall of files that span multiple media volumes) after some phases
are already finished, such as migration phases with multiple copying, where each copy
represents one phase. In case the multiple copying process was overtaken by another job
with a higher priority, the files are still waiting to be migrated to the FSE media on the
disk buffer thus occupying disk space. By setting a higher value, the priority is increased
after each copy.
Definition System-wide priority level for backup jobs on a scale of 1 to 10000.
Impact The purpose of this parameter is to define the initial priority of backup jobs. You should
adjust it according to the priorities defined in the FSE partition configuration for other
jobs (migration, recall, recovery, maintenance).
Definition System-wide priority level for administration jobs (formatting and initializing) on a scale
of 1 to 10000.
Impact The purpose of this parameter is to define the initial priority of administration jobs. You
should adjust it according to the priorities defined in the FSE partition configuration for
other jobs (migration, recall, recovery, maintenance).