Scheduling - Best Practices
Scheduling Regularly Occurring Data Protection Operations
You should schedule regularly occurring data protection operations for times of low system utilization. For example, you may want to avoid backing up or migrating data during regular work hours.
Avoiding Media Drive or Media Group Contention
If the number of media drives is small compared with the number of subclients in the CommCell, drive contention can occur. Also if the number of storage policies is small compared with the number of subclients, or if a specific storage policy is the target of many subclients, then media group contention can occur.
If either condition occurs, data protection operations will queue until the needed resource becomes available. Consequently, operations may extend beyond the operation window that was intended for the CommCell.
Therefore it is advisable to distribute the scheduled operations in a CommCell over a period of time in order to avoid media drive and media group contention.
Scheduling for Multiple Subclients of a Backup set/InstanceYou can schedule all of your subclients of a particular backup set/instance (depending upon your agent) at once by creating the schedule at the backup set/instance level. If you select a backup set or instance, the system applies the same schedule or data protection operation request to all constituent subclients.
Creating Complimentary Schedules for Backup Cycles
It is advisable to create complementary schedules for backup cycles for any given agent/instance/backup set or subclient. For example, if you want to schedule daily incremental backups and a full backup once a week, do not schedule any incremental backups on the day the full backup is scheduled.
Scheduling Data Protection Jobs Within the Operation Window
Check if an operation window has been established for data protection operations. If an operation window exists, make certain to schedule the data protection operation within the operation window.
Disaster Recovery Backups and Scheduling
It is advisable to not schedule many backups while a Disaster Recovery Backup is running.