User's Manual

144 Migration, release, recall, and deletion
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 307.
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.
Maximum number of drives (MaxNumDrives)
Maximum number of drives for migration (MaxNumDrivesMigration)
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 administrative jobs (formatting and initializing) on a scale of
1 to 10000.
Impact The purpose of this parameter is to define the initial priority of administrative jobs. You
should adjust it according to the priorities defined in the FSE partition configuration for
other jobs (migration, recall, recovery, maintenance).
Definition Maximum number of all drives that can be used for all jobs by the partition.
Impact With this parameter you can prevent a single partition from using all the drives and not
leaving any drives for other partitions and administrative jobs. You should carefully
balance resources. Note that all other jobs are queued if the Partition Manager uses the
maximum number of drives.
Definition Maximum number of drives that can be used for migration by the partition.
Impact The purpose of this parameter is to prevent the respective Partition Manager from using
all the drives at once for migration jobs. You should carefully balance resources
according to your environment.