Back up Azure file shares
This article describes how to back up Azure file shares from the Azure portal.
Azure file share backup is a native, cloud based backup solution that protects your data in the cloud and eliminates additional maintenance overheads involved in on-premises backup solutions. The Azure Backup service smoothly integrates with Azure File Sync, and allows you to centralize your file share data as well as your backups. This simple, reliable, and secure solution enables you to configure protection for your enterprise file shares in a few simple steps with an assurance that you can recover your data in case of any accidental deletion.
Learn about the Azure file share snapshot-based backup solution.
- Ensure that the file share is present in one of the supported storage account types.
- Identify or create a Recovery Services vault in the same region and subscription as the storage account that hosts the file share.
- In case you have restricted access to your storage account, check the firewall settings of the account to ensure that the exception "Allow Azure services on the trusted services list to access this storage account" is granted. You can refer to this link for the steps to grant an exception.
Create a Recovery Services vault
A Recovery Services vault is a management entity that stores recovery points that are created over time, and it provides an interface to perform backup-related operations. These operations include taking on-demand backups, performing restores, and creating backup policies.
To create a Recovery Services vault:
Sign in to the Azure portal.
Search for Backup center, and then go to the Backup center dashboard.
On the Overview pane, select Vault.
Select Recovery Services vault > Continue.
On the Recovery Services vault pane, enter the following values:
Subscription: Select the subscription to use. If you're a member of only one subscription, you'll see that name. If you're not sure which subscription to use, use the default subscription. There are multiple choices only if your work or school account is associated with more than one Azure subscription.
Resource group: Use an existing resource group or create a new one. To view a list of available resource groups in your subscription, select Use existing, and then select a resource in the dropdown list. To create a new resource group, select Create new, and then enter the name. For more information about resource groups, see Azure Resource Manager overview.
Vault name: Enter a friendly name to identify the vault. The name must be unique to the Azure subscription. Specify a name that has at least 2 but not more than 50 characters. The name must start with a letter and consist only of letters, numbers, and hyphens.
Region: Select the geographic region for the vault. For you to create a vault to help protect any data source, the vault must be in the same region as the data source.
If you're not sure of the location of your data source, close the window. Go to the list of your resources in the portal. If you have data sources in multiple regions, create a Recovery Services vault for each region. Create the vault in the first location before you create a vault in another location. There's no need to specify storage accounts to store the backup data. The Recovery Services vault and Azure Backup handle that automatically.
After providing the values, select Review + create.
To finish creating the Recovery Services vault, select Create.
It can take a while to create the Recovery Services vault. Monitor the status notifications in the Notifications area at the upper right. After the vault is created, it appears in the list of Recovery Services vaults. If the vault doesn't appear, select Refresh.
Azure Backup now supports immutable vaults that help you ensure that recovery points once created can't be deleted before their expiry as per the backup policy. You can make the immutability irreversible for maximum protection to your backup data from various threats, including ransomware attacks and malicious actors. Learn more.
Configure the backup
Choose an entry point
To configure backup for multiple file shares from the Backup center, follow these steps:
In the Azure portal, go to Backup center and select +Backup.
Select Azure Files (Azure Storage) as the datasource type, select the vault that you wish to protect the file shares with, and then select Continue.
Click Select to select the storage account that contains the file shares to be backed-up.
The Select Storage Account Pane opens on the right, listing a set of discovered supported storage accounts. They're either associated with this vault or present in the same region as the vault, but not yet associated to any Recovery Services vault.
From the list of discovered storage accounts, select an account, and select OK.
If a storage account is present in a different region than the vault, it won't be present in the list of discovered storage accounts.
The next step is to select the file shares you want to back up. Select the Add button in the FileShares to Backup section.
The Select File Shares context pane opens on the right. Azure searches the storage account for file shares that can be backed up. If you recently added your file shares and don't see them in the list, allow some time for the file shares to appear.
From the Select File Shares list, select one or more of the file shares you want to back up. Select OK.
To choose a backup policy for your file share, you have three options:
Choose the default policy.
This option allows you to enable daily backup that will be retained for 30 days. If you don’t have an existing backup policy in the vault, the backup pane opens with the default policy settings. If you want to choose the default settings, you can directly select Enable backup.
Create a new policy
To create a new backup policy for your file share, select the link text below the drop-down list in the Backup Policy section.
Follow the steps 3-7 in the Create a new policy section.
After defining all attributes of the policy, select OK.
Choose one of the existing backup policies
To choose one of the existing backup policies for configuring protection, select the desired policy from the Backup policy drop-down list.
Select Enable Backup to start protecting the file share.
After you set a backup policy, a snapshot of the file shares is taken at the scheduled time. The recovery point is also retained for the chosen period.
Run an on-demand backup job
Occasionally, you might want to generate a backup snapshot, or recovery point, outside of the times scheduled in the backup policy. A common reason to generate an on-demand backup is right after you've configured the backup policy. Based on the schedule in the backup policy, it might be hours or days until a snapshot is taken. To protect your data until the backup policy engages, initiate an on-demand backup. Creating an on-demand backup is often required before you make planned changes to your file shares.
Choose an entry point
To run an on-demand backup, follow these steps:
Go to Backup center and select Backup Instances from the menu.
Filter for Azure Files (Azure Storage) as the datasource type.
Select the item for which you want to run an on-demand backup job.
In the Backup Item menu, select Backup now. Because this backup job is on demand, there's no retention policy associated with the recovery point.
The Backup Now pane opens. Specify the last day you want to retain the recovery point. You can have a maximum retention of 10 years for an on-demand backup.
Select OK to confirm the on-demand backup job that runs.
Monitor the portal notifications to keep a track of backup job run completion.
To monitor the job progress in the Backup center dashboard, select Backup center -> Backup Jobs -> In progress.
Don't delete snapshots created by Azure Backup. Deleting snapshots can result in loss of recovery points and/or restore failures.
Don't remove the lock taken on the storage account by Azure Backup. If you delete the lock, your storage account will be prone to accidental deletion and if it's deleted, you'll lose your snapshots or backups.
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