New installation of MABS v3 (13.0.415.0). Azure Backup Agent version 2.0.9173.0 and shows registered in management tab. Show
Windows Server 2016 is completely up to date according to Windows update (14393.5066). When I'm creating the protection group, select a Hyper-V VM and I get error ID:31313: One or more prerequisites for protecting this data source is missing. Windows Server 2008 with If you have already installed the required prerequisite, refresh the agent status in the management tab and try again. ID: 31313 windows-server-2016azure-backupComment Comment Show 0 Comment 5 |1600 characters needed characters left characters exceeded
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Attachments: Up to 10 attachments (including images) can be used with a maximum of 3.0 MiB each and 30.0 MiB total. This article answers common questions about backing up data with the Microsoft Azure Recovery Services (MARS) Agent in the Azure Backup service. Configure backupsWhere can I download the latest version of the MARS agent?The latest MARS agent used when backing up Windows Server machines, System Center DPM, and Microsoft Azure Backup server is available for download. Where can I download the vault credentials file?In the Azure portal, navigate to Properties for your vault. Under Backup Credentials, select the checkbox for Already using the latest Recovery Services Agent. Select Download. How long are vault credentials valid?Vault credentials expire after 10 days. If the credentials file expires, download the file again from the Azure portal. Why do I need to update my MARS agent for the vault credentials to work?A new parameter is added to the vault credentials file. It can be parsed correctly only with MARS agent version 2.0.9249.0 and above. What characters are allowed for the passphrase?The passphrase should use characters from the ASCII character set, with ASCII values less than or equal to 127. From what drives can I back up files and folders?You can't back up the following types of drives and volumes:
What file and folder types are supported?Learn more about the types of files and folders supported for backup. Can I use the MARS agent to back up files and folders on an Azure VM?Yes. Azure Backup provides VM-level backup for Azure VMs using the VM extension for the Azure VM agent. If you want to back up files and folders on the guest Windows operating system on the VM, you can install the MARS agent to do that. Can I use the MARS agent to back up files and folders on temporary storage for the Azure VM?Yes. Install the MARS agent, and back up files and folders on the guest Windows operating system to temporary storage.
How do I register a server to another region?Backup data is sent to the datacenter of the vault in which the server is registered. The easiest way to change the datacenter is to uninstall and reinstall the agent, and then register the machine to a new vault in the region you need. Does the MARS agent support Windows Server 2012 deduplication?Yes. The MARS agent converts the deduplicated data to normal data when it prepares the backup operation. It then optimizes the data for backup, encrypts the data, and then sends the encrypted data to the vault. Do I need administrator permissions to install and configure the MARS agent?Yes, the installation of the MARS Agent and configuration of backups using the MARS console need the user to be a local administrator on the protected server. In tenant restrictions scenario, which tenant should I allow access to for successful MARS backups?To know about tenant details, open the vault credential file downloaded from Recovery Services vault and refer to the value of the What is the impact on MARS Agent backups of transferring the vault subscription to a different Azure AD directory?The change of Azure AD directory will have no impact on MARS Agent backups. What happens if the expected Weekly, Monthly, or Yearly backup fails?If backup fails, the next successful backup after the expected Weekly, Monthly or Yearly backup is retained as per the retention period for Weekly, Monthly and Yearly recovery points (Long Term Retention (LTR) points) respectively, as per the backup policy. This successful backup could be an adhoc backup or a scheduled backup in case of MARS Agent. Manage backupsWhat happens if I rename or change the FQDN of a Windows machine configured for backup?When you rename a Windows machine or make changes to the FQDN by performing operations like adding machine to a domain, moving machine to another domain or disjoining machine from a domain, all currently configured backups are stopped.
What is the maximum file path length for backup?The MARS agent relies on NTFS, and uses the filepath length specification limited by the Windows API. If the files you want to protect are longer than the allowed value, back up the parent folder or the disk drive. What characters are allowed in file paths?The MARS agent relies on NTFS, and allows supported characters in file names/paths. The warning "Azure Backups have not been configured for this server" appearsThis warning can appear even though you've configured a backup policy, when the backup schedule settings stored on the local server aren't the same as the settings stored in the backup vault.
I see a few jobs are stuck in the In Progress state for a long time under Backup Jobs in the Azure portal. How can I resolve these?This can happen if a job was unable to complete due to reasons, such as network connectivity issues, machine shutdown, or process termination. No user action is required here. These jobs will automatically be marked as Failed after 30 days. Learn more to run an on-demand backup job using the MARS agent. Manage the backup cache folderWhat's the minimum size requirement for the cache folder?The size of the cache folder determines the amount of data that you're backing up.
How to check if scratch folder is valid and accessible?
How do I change the cache location for the MARS agent?
Note If you are using any offline seeding solution, don't change the cache location during initial replication process. Where should the cache folder be located?The following locations for the cache folder aren't recommended:
Are there any attributes of the cache folder that aren't supported?The following attributes or their combinations aren't supported for the cache folder:
The cache folder and the metadata VHD don't have the necessary attributes for the Azure Backup agent. Is there a way to adjust the amount of bandwidth used for backup?Yes, you can use the Change Properties option in the MARS agent to adjust the bandwidth and timing. Learn more. RestoreCan I recover if I forgot my passphrase?The Azure Backup agent requires a passphrase (that you provided during registration) to decrypt the backed-up data during restore. Review the scenarios below to understand your options for handling a lost passphrase: Original Machine(source machine where backups were taken)PassphraseAvailable OptionsAvailableLostIf your original machine (where backups were taken) is available and still registered with the same Recovery Services vault, then you can regenerate the passphrase by following these steps.LostLostNot possible to recover the data or data isn't available Consider the following conditions:
How do I recover if I lost my original machine (where backups were taken)?If you have the same passphrase (that you provided during registration) of the original machine, then you can restore the backed-up data to an alternate machine. Review the scenarios below to understand your restore options. Original MachinePassphraseAvailable OptionsLostAvailableYou can install and register the MARS agent on another machine with the same passphrase that you provided during registration of the original machine. Choose Recovery Option > Another location to perform your restore. For more information, see this article.LostLostNot possible to recover the data or data isn't availableMy backup jobs have been failing or not running for a long time. I'm past the retention period. Can I still restore?As a safety measure, Azure Backup will preserve the recovery point with the longest retention, even if it's past the retention period. Once backups resume and fresh recovery points become available, the older recovery point will be removed according to the specified retention. What happens if I cancel an ongoing restore job?If an ongoing restore job is canceled, the restore process stops. All files restored before the cancellation stay in configured destination (original or alternate location), without any rollbacks. Can Azure backup be used for offline volumes?You can't back up the following types of drives and volumes: Removable media: All backup item sources must report as fixed. Read-only volumes: The volume must be writable for the volume shadow copy service (VSS) to function. Offline volumes: The volume must be online for VSS to function.
What is Azure backup used for?Keep data secure: Azure Backup provides solutions for securing data in transit and at rest. Centralized monitoring and management: Azure Backup provides built-in monitoring and alerting capabilities in a Recovery Services vault. These capabilities are available without any additional management infrastructure.
What is the disadvantages of Azure backup?The biggest disadvantage to using Azure Backup, though, is that it is disjointed. While the name might lead to the assumption it is solely a cloud-based backup product, it is actually a collection of several different backup components.
Can you use Azure backup to back up VMs?Azure Backup supports application-consistent backups for both Windows and Linux VMs. Azure Backup creates recovery points that are stored in geo-redundant recovery vaults.
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