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| Region Availability | Premium<br><ul><li>30+ Regions</li></ul><br>Standard<br><ul><li>All regions</li></ul><br> To learn more, see [Products available by region](https://azure.microsoft.com/global-infrastructure/services/?products=storage). | All tiers<br><ul><li>40+ Regions</li></ul><br> To learn more, see [Products available by region](https://azure.microsoft.com/global-infrastructure/services/?products=storage). |
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| Redundancy | Premium<br><ul><li>LRS</li><li>ZRS</li></ul><br>Standard<br><ul><li>LRS</li><li>ZRS</li><li>GRS</li><li>GZRS</li></ul><br> To learn more, see [redundancy](./storage-files-planning.md#redundancy). | All tiers<br><ul><li>Built-in local HA</li><li>[Cross-region replication](../../azure-netapp-files/cross-region-replication-introduction.md)</li><li>[Cross-zone replication](../../azure-netapp-files/cross-zone-replication-introduction.md)</li><li>[Availability zones for high availability](../../azure-netapp-files/use-availability-zones.md)</li></ul> |
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| Service-Level Agreement (SLA)<br><br> Note that SLAs for Azure Files and Azure NetApp Files are calculated differently. |[SLA for Azure Files](https://azure.microsoft.com/support/legal/sla/storage/)|[SLA for Azure NetApp Files](https://azure.microsoft.com/support/legal/sla/netapp)|
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| Identity-Based Authentication and Authorization | SMB<br><ul><li>Active Directory Domain Services (AD DS)</li><li>Microsoft Entra Domain Services</li><li>Microsoft Entra Kerberos (hybrid identities only)</li></ul><br> Note that identify-based authentication is only supported when using SMB protocol. To learn more, see [FAQ](./storage-files-faq.md#security-authentication-and-access-control). | SMB<br><ul><li>Active Directory Domain Services (AD DS)</li><li>Microsoft Entra Domain Services</li></ul><br> NFS/SMB dual protocol<ul><li>ADDS/LDAP integration</li><li>[ADD/LDAP over TLS](../../azure-netapp-files/configure-ldap-over-tls.md)</li></ul><br>NFSv3/NFSv4.1<ul><li>[ADDS/LDAP integration with NFS extended groups](../../azure-netapp-files/configure-ldap-extended-groups.md)</li></ul><br> To learn more, see [Azure NetApp Files NFS FAQ](../../azure-netapp-files/faq-nfs.md) and [Azure NetApp Files SMB FAQ](../../azure-netapp-files/faq-smb.md). |
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| Identity-Based Authentication and Authorization | SMB<br><ul><li>Active Directory Domain Services (AD DS)</li><li>Microsoft Entra Domain Services</li><li>Microsoft Entra Kerberos (hybrid identities only)</li></ul><br> Note that identify-based authentication is only supported when using SMB protocol. To learn more, see [FAQ](./storage-files-faq.md#security-authentication-and-access-control). | SMB<br><ul><li>Active Directory Domain Services (AD DS)</li><li>Microsoft Entra Domain Services</li></ul><br> NFS/SMB dual protocol<ul><li>ADDS/LDAP integration</li><li>[ADD/LDAP over TLS](../../azure-netapp-files/configure-ldap-over-tls.md)</li><li>[Microsoft Entra Kerberos](../../azure-netapp-files/access-smb-volume-from-windows-client.md) (hybrid identities only)</li></ul><br>NFSv3/NFSv4.1<ul><li>[ADDS/LDAP integration with NFS extended groups](../../azure-netapp-files/configure-ldap-extended-groups.md)</li></ul><br> To learn more, see [Azure NetApp Files NFS FAQ](../../azure-netapp-files/faq-nfs.md) and [Azure NetApp Files SMB FAQ](../../azure-netapp-files/faq-smb.md). |
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| Encryption | All protocols<br><ul><li>Encryption at rest (AES-256) with customer or Microsoft-managed keys</li></ul><br>SMB<br><ul><li>Kerberos encryption using AES-256 (recommended) or RC4-HMAC</li><li>Encryption in transit</li></ul><br>REST<br><ul><li>Encryption in transit</li></ul><br> To learn more, see [Security and networking](files-nfs-protocol.md#security-and-networking). | All protocols<br><ul><li>Encryption at rest (AES-256) with Microsoft-managed keys</li><li>[Encryption at rest (AES-256) with customer-managed keys](../../azure-netapp-files/configure-customer-managed-keys.md)</li></ul><br>SMB<ul><li>Encryption in transit using AES-CCM (SMB 3.0) and AES-GCM (SMB 3.1.1)</li></ul><br>NFS 4.1<ul><li>Encryption in transit using Kerberos with AES-256</li></ul><br> To learn more, see [security FAQ](../../azure-netapp-files/faq-security.md). |
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| Access Options | <ul><li>Internet</li><li>Secure VNet access</li><li>VPN Gateway</li><li>ExpressRoute</li><li>Azure File Sync</li></ul><br> To learn more, see [network considerations](./storage-files-networking-overview.md). | <ul><li>Secure VNet access</li><li>VPN Gateway</li><li>ExpressRoute</li><li>[Virtual WAN](../../azure-netapp-files/configure-virtual-wan.md)</li><li>[Global File Cache](https://cloud.netapp.com/global-file-cache/azure)</li><li>[HPC Cache](../../hpc-cache/hpc-cache-overview.md)</li><li>[Standard Network Features](../../azure-netapp-files/azure-netapp-files-network-topologies.md#configurable-network-features)</li></ul><br> To learn more, see [network considerations](../../azure-netapp-files/azure-netapp-files-network-topologies.md). |
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| Data Protection | <ul><li>Incremental snapshots</li><li>File/directory user self-restore</li><li>Restore to new location</li><li>In-place revert</li><li>Share-level soft delete</li><li>Azure Backup integration</li></ul><br> To learn more, see [Azure Files enhances data protection capabilities](https://azure.microsoft.com/blog/azure-files-enhances-data-protection-capabilities/). | <ul><li>[Azure NetApp Files backup](../../azure-netapp-files/backup-introduction.md)</li><li>Snapshots (255/volume)</li><li>File/directory user self-restore</li><li>Restore to new volume</li><li>In-place revert</li><li>[Cross-region replication](../../azure-netapp-files/cross-region-replication-introduction.md)</li><li>[Cross-zone replication](../../azure-netapp-files/cross-zone-replication-introduction.md)</li></ul><br> To learn more, see [How Azure NetApp Files snapshots work](../../azure-netapp-files/snapshots-introduction.md). |
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| Category | Azure Files | Azure NetApp Files |
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|---------|---------|---------|
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| Minimum Share/Volume Size | Premium<br><ul><li>100 GiB</li></ul><br>Standard<br><ul><li>No minimum (SMB only - NFS requires Premium shares).</li></ul> | All tiers<br><ul><li>100 GiB (Minimum capacity pool size: 1 TiB)</li></ul> |
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| Maximum Share/Volume Size | 100 TiB | All tiers<br><ul><li>Up to 100 TiB (regular volume)</li><li>100 TiB - 500 TiB (large volume)</li><li>500 TiB capacity pool size limit</li></ul><br>Up to 12.5 PiB per Azure NetApp account.|
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| Maximum Share/Volume Size | 100 TiB | All tiers<br><ul><li>Up to 100 TiB (regular volume)</li><li>50 TiB - 500 TiB (large volume)</li><li>1000 TiB capacity pool size limit</li></ul><br>Up to 12.5 PiB per Azure NetApp account |
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| Maximum Share/Volume IOPS | Premium<br><ul><li>Up to 100k</li></ul><br>Standard<br><ul><li>Up to 20k</li></ul> | Ultra and Premium<br><ul><li>Up to 450k </li></ul><br>Standard<br><ul><li>Up to 320k</li></ul> |
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| Maximum Share/Volume Throughput | Premium<br><ul><li>Up to 10 GiB/s</li></ul><br>Standard<br><ul><li>Up to [storage account limits](./storage-files-scale-targets.md#storage-account-scale-targets).</li></ul> | Ultra<br><ul><li>4.5 GiB/s (regular volume)</li><li>10 GiB/s (large volume)</li></ul><br>Premium<br><ul><li>Up to 4.5 GiB/s (regular volume)</li><li>Up to 6.4 GiB/s (large volume)</li></ul><br>Standard<br><ul><li>Up to 1.6 GiB/s (regular and large volume)</li><ul> |
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