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Veeam Backup & Replication 9.5
User Guide for Microsoft Hyper-V

Automatic Startup Schedule

To run a job periodically without user intervention, you can schedule the job to start automatically. The Veeam Backup Service running on the backup server continuously checks configuration settings of all jobs configured on the backup server, and starts them according to their schedule.

Veeam Backup & Replication lets you configure the following scheduling settings for jobs:

Jobs Started at Specific Time

You can schedule jobs to start at specific time daily, on specific week days or monthly on selected days.

This type of schedule requires that you define the exact time when the job must be started. For example, you can configure the job to start daily at 10:00 PM or every first Sunday of the month at 12:00 AM.

Automatic Startup Schedule 

Jobs Started at Specific Time Intervals

You can schedule jobs to start periodically throughout a day at a specific time interval. The time interval between job sessions can be defined in minutes or hours. For example, you can configure a job to start every 30 minutes or every 2 hours.

For periodically run jobs, reference time is midnight (12:00 AM). Veeam Backup & Replication always starts counting defined intervals from 12:00 AM, and the first job session will start at 12:00 AM. For example, if you configure a job to run with a 4-hour interval, the job will start at 12:00 AM, 4:00 AM, 8:00 AM, 12:00 PM, 4:00 PM and so on.

Automatic Startup Schedule 

If necessary, you can specify an offset for periodically run jobs. The offset is an exact time within an hour when the job must start. For example, you can configure the job to start with a 4-hour interval and specify offset equal to 15 minutes. In this case, the job will start at 12.15 AM, 4:15 AM, 8:15 AM, 12:15 PM, 4:15 PM and so on.

Automatic Startup Schedule 

If a session of a periodically run job does not fit into the specified time interval and overlaps the next planned job session, Veeam Backup & Replication starts the next backup job session at the nearest scheduled interval. For example, you set up a job to run with a 4-hour interval. The first job session starts at 12:00 AM, takes 5 hours and completes at 5:00 AM. In this case, Veeam Backup & Replication will start a new job session at 8:00 AM.

Automatic Startup Schedule 

Jobs Run Continuously

You can schedule the job to run continuously — that is, in a non-stop manner. A new session of a continuously running job starts as soon as the previous job session completes. Continuously run jobs can help you implement near-continuous data protection (near-CDP) for the most critical applications installed on VMs.

Automatic Startup Schedule 

Chained Jobs

In the common practice, data protection jobs configured in the virtual environment start one after another: when job A finishes, job B starts and so on. You can create a chain of jobs using scheduling settings. To do this, you must define the start time for the first job in the chain. For other jobs in the chain, you must select the After this job option and choose the preceding job from the list.

Job chaining is not limited to jobs of specific type only. You can create a chain of jobs of different types. For example, you can:

  1. Set a backup job as the first job in the chain.
  2. Configure a SureBackup job and chain with the backup job. In this case, Veeam Backup & Replication will automatically verify a backup file created with the backup job after the backup job completes.

Automatic Startup Schedule Note:

If you start the initial job manually, Veeam Backup & Replication will offer you to start jobs chained to it as well. Click Yes to start the whole job chain or No to start only the first job in the chain.

If you start the initial job manually and chain another job to it while the initial job is running, the chained job will not start when the initial job completes.

Automatic Startup Schedule 

Recommendations on Job Chaining

You should use job chaining wisely. Job chaining removes guesswork from job scheduling but has a number of drawbacks:

For example, you configure 2 jobs:

Imagine that Job 1 starts on Saturday and runs for 2.5 hours instead of 1 hour. Job 2 will then start after midnight on Sunday, and the synthetic full backup planned on Saturday will not be created.

Instead of job chaining, you can schedule jobs to run simultaneously and balance the load on backup infrastructure components. To do this, you must enable parallel data processing and limit the number of concurrent tasks on backup proxies and backup repositories. For more information, see Limiting the Number of Concurrent Tasks and Selecting Data Processing Modes.

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