This article discusses the functions of the Configure Agent Settings tab of the Datto appliance GUI. To configure the settings for an agent after pairing it with the device, access the Datto device's GUI, click the Protect tab, choose the protected machine that you want to configure, and click the Configure Agent Settings link.
- Reporting & Alerting
- Secure File Restore & Export
- VSS Writer Exclusion
- Share Compatibility Mode
- Virtualization Storage Controller
- Virtualization Network Controller
- Virtualization Video Controller
- Virtualization Core Components
- Snapshot Timeout
- Force Differential Merge
- Force Retention
- Repair Agent Communications
- Destroy Live Dataset
This option allows administrators to pause local backups. This is of particular use if you are reconfiguring settings and do not want a backup to begin.
Figure 1: Pause Backups interface
If you attempt to enable backups that have been paused by a Rescue Agent, you will see the warning shown in Figure 2.
Figure 2: Rescue agent alert
Pause Cloud Backups
Here, you can pause and resume offsite synchronization to the cloud.
Figure 3: Pause Cloud Backups interface
Local Backup & Retention
In this section, you set the interval and schedule for local backups. The default is to run hourly backups from 9 am to 6 pm, Monday through Friday, which results in 55 backups per week.
Figure 4: Local Backup Interval and Schedule, default settings
You can change the settings that are underlined in the UI. To do so, click on the setting, and you will see a drop-down menu. If you want to keep the same schedule on the weekends, click Monday through Friday, and change it to every day. If you would like a different schedule on the weekends, check the box that says In addition, Saturday and Sunday backups should be performed at. You will then see available times for Saturday and Sunday backups. You must click Apply or Apply to All to save your changes. Apply to All will change the settings for all protected machines.
For a customized schedule, click the Custom settings link.
Figure 5: Local Backup Interval and Schedule, custom settings
In the custom schedule, you can select a custom schedule and interval for your backups. To save your changes, click Apply or Apply to All.
The default retention keeps local backups on the device for 3 months. You can change this by clicking on the underlined option.
Figure 6: Local Retention, default settings
By default, intra-daily backups are retained for 7 days. After 7 days, it keeps daily backups for 1 week. After 1 week, it keeps weekly backups for 1 month. After that, monthly backups are kept for 3 months.
To set custom retention settings, click on the Custom settings link.
Figure 7: Local retention, custom settings
To learn more about how retention works, see the article Understanding The Retention Process.
Figure 8: Cloud Backup Interval and Schedule, default
By default, your backups replicate to the Datto Cloud once per day. To change this, click the Custom settings link. Remember that offsite replication consumes bandwidth. You can set a sync priority for the agent to determine which agent's backups get sent to the Cloud first.
Figure 9: Cloud Backup Interval and Schedule, custom
Remember to click Apply or Apply to All to save your changes.
By default, backups are kept in the cloud for 6 months. You can change this by clicking the underlined option ("6 months").
Figure 10: Cloud Backup Retention, default
By default, the Cloud retains all intra-daily backups for 7 days. After that, it keeps daily backups for 1 week. After that, it keeps weekly backups for 1 month. And then after 6 months, the monthly backups are deleted. To change these settings, click Custom settings.
Figure 11: Cloud Backup Retention, custom
For more details about the retention process, see the article Understanding The Retention Process.
This option allows you to pick which backup engine ShadowSnap will use for backups.
Figure 12: Backup Engine Option Interface
Application Aware VSS w/ STC fallback
- The Datto will attempt to first do a Microsoft Shadow Copy Provider VSS backup (Application Aware VSS).
- If this fails, then it will attempt a crash consistent state backup using the Storage Craft VSS Provider (STC).
STC Backup Engine
- The Datto will attempt to only do a STC backup.
Application Aware VSS
- The Datto will attempt to only do a VSS backup.
Application Aware VSS & STC Backup Engine
Application Aware VSS refers to the use of the Microsoft Shadow Copy Provider. This VSS Provider interacts with supported applications to provide backups as the the applications are running. Unlike the Microsoft Shadow Copy Provider, the backup provided by the STC Backup Engine is not application-aware as it simply provides a backup equal to that of a crash-consistent state. A crash-consistent state backup can be compared to the state that the system will be in directly after a hard reboot, such that data in processing may not be saved properly. To learn more about VSS writers, see this article.
This option allows you to exclude backups on a volume-by-volume basis for the agent.
Figure 13: Volume Level Backup Control
This feature boots and screenshots recovery points created by the agent. This way, it can be ensured that the agent will boot successfully in a restore. By default, a screenshot is performed on the latest recovery point of the day. It can be configured for screenshots on the first recovery point of the day or on custom schedule. Normally screenshots are taken at the moment the VM launches the login screen. If the login screen is not showing in screenshots, increasing the additional wait time can allow the system more time to boot fully.
To learn more about configuring screenshot verification, see this article.
This feature allows you to use scripts allow you to perform advanced verification of the quality of your backup. For example, a script could open a SQL Server database and validate that a particular table existed. At the schedule defined, the system will execute your scripts in the order they are uploaded below and return positive or negative results. In the event that a script returns a negative result, this will trigger a warning notice.
To learn more about configuring backup verification scripts, see this article.
Ransomware Detection tests your backup for signs of ransomware. This can detect early stages of ransomware infection, and allow you to intervene before it spreads. In the event that potential ransomware is found, this will trigger a warning notice email, so ensure that warning notices are monitored.
To learn more about ransomware detection, see this article.
The Weekly Backup Report is an emailed report that gives you a summary of an agent's backups for the week.
To learn more about configuring this report, see this article.
If configured, this option allows the Datto appliance to send alerts regarding critical error states where local snapshots for an agent are no longer occurring, and are unable or unlikely to resume.
If configured, this option allows the Datto appliance to send alerts regarding an error condition where a warning state has occurred. A single snapshot for an agent may have been missed, but future snapshots are likely to resume.
The Log Digests option sends a midnight log digest of the last 24 hours of activity for an agent. Note: These digests can be quite long and are very verbose.
See this article for more information about setting up critical error alerts, warning notices, and log digests.
Ensures that while Recovery Point File Restores and VMDK/VHD exports are mounted on the SIRIS that they are not accessible to anyone else on the local network. The dropdown box lists available users that can be set to have access credentials for the share when data is being mounted on the SIRIS. Users are added through the Local Users/Contact page of the SIRIS Web Console.
Figure 14: Secure File Restore & Export
This feature allows you to exclude specific VSS writers from being used by the Datto appliance during the agent's backup. See this article for more information about excluding VSS writers.
Enabling this option makes a tradeoff between security and compatibility. Selecting this feature changes the SIRIS Samba share to be persistent and available on the LAN. In some legacy Domain environments, you may need to enable this option to successfully transfer data across the network on a consistent basis.
Enabling Share Compatibility can resolve many common connectivity issues for older Windows systems. It should only be enabled if you are experiencing network connectivity or transfer errors on the agent page.
This setting changes the Storage Controller to use when virtualizing the protected system in VirtualBox, KVM, or ESXi. AHCI SATA is the default setting, because the SIRIS injects this SATA Controller driver into the boot configuration of the backup.
This option selects the type of NIC driver to use in the virtual environment. This generally is only needed during disaster recovery situations as well as for purposes of testing the network functionality of a backup VM. There are options for VirtualBox, KVM, and ESXi virtualization.
This option allows you to choose between the default VGA driver and the legacy Cirrus video driver on Ubuntu 16.04 devices running the KVM virtualization platform.
This option helps to determine the use of USB or PS/2 drivers for the mouse and keyboard in the virtual environment.
The default is Modern Virtualization Environment, which uses drivers for the virtual USB mouse and keyboard. The Legacy Virtualization Environment uses drivers for the virtual PS/2 mouse and keyboard.
If a virtual machine experiences trouble with control of the keyboard or mouse, stop the VM, and switch to the Legacy Virtualization Environment.
See this article for more information regarding configuring virtualization options.
The snapshot timeout option determines the time allotted to the Volume Shadow Copy service before it times out. The default setting is set to 15 minutes. If an agent requires more than 15 minutes for VSS to return information to the SIRIS, then there is usually an issue with communications between one or more of the agent services on the protected machine and the SIRIS. There may also be an issue with the backup agent software installation, or a problem with the protected machine. You can learn more about this feature here.
Forcing a differential merge forces a re-association of backup increments. With this option selected, the agent's next backup traverses all protected volumes, and only create a backup consisting of the changes since the last backup. It will take the time of a full backup, but it will not take the space of a full backup. See this article for additional information about forcing a differential merge.
Clicking the Force Retention button immediately applies the device's retention policies for the agent to its local backups. Learn more here.
Clicking the Repair Agent Communications button instructs the Datto appliance to attempt to recreate the secure key pair between the agent and the device. This can fix common agent communication errors. You can find more information about this feature here.
This function immediately destroys a backup agent's live dataset from your Datto appliance. It will stop any backups in progress, and delete the agent's live disk images, but it will leave the snapshot chain intact. Using this feature will result in the agent taking a new full backup, which will take up the space of a new full image on the device. Only use this option if this protected machine's disks have been re-sized or the protected machine's disk image is irreparably corrupt. Review this article before using the Destroy Live Dataset feature.