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Merge pull request #16302 from pauljewellmsft/amlfs-titles
[AMLFS] Article clean-up
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azure-managed-lustre/amlfs-overview.md

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title: What is Azure Managed Lustre?
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description: Use Azure Managed Lustre to quickly create an Azure-based Lustre file system to use in cloud-based high-performance computing jobs.
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description: Use Azure Managed Lustre to quickly create an Azure-based Lustre file system for cloud-based high-performance computing jobs.
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ms.topic: overview
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author: pauljewellmsft
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ms.author: pauljewell
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ms.date: 05/14/2024
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ms.date: 11/11/2024
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ms.reviewer: mayabishop
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# What is Azure Managed Lustre?
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The Azure Managed Lustre service gives you the capability to quickly create an Azure-based Lustre file system to use in cloud-based high-performance computing jobs.
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The Azure Managed Lustre service gives you the capability to quickly create an Azure-based Lustre file system for cloud-based high-performance computing jobs.
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Lustre is an open-source parallel file system that can scale to massive storage sizes while also providing high performance throughput. Lustre is used by the world's fastest supercomputers and in data-centric workflows for many types of industries. For more information, see [https://www.lustre.org](https://www.lustre.org).
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Your Azure Managed Lustre file system uses Azure managed disks as object storage target (OST) data disks.
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All Azure Managed Lustre file systems that are created as a "durable" file system type use Azure Premium SSD (solid state drive) disks configured as locally redundant storage (LRS). LRS disk contents are replicated three times within the local datacenter to protect against drive and server rack failures.
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All Azure Managed Lustre file systems that are created as a "durable" file system type use Azure Premium SSD (solid state drive) disks configured as locally redundant storage (LRS). LRS disk contents are replicated three times within the local data center to protect against drive and server rack failures.
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The Azure Managed Lustre file system itself also contributes to data resilience through the object storage processes it uses to store data on these disks.
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azure-managed-lustre/amlfs-prerequisites.md

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title: Prerequisites for Azure Managed Lustre file systems
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description: Network and storage prerequisites to complete before you create an Azure Managed Lustre file system.
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description: Learn about network and storage prerequisites to complete before you create an Azure Managed Lustre file system.
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ms.topic: overview
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ms.date: 05/14/2024
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author: pauljewellmsft

azure-managed-lustre/amlfs-region-recovery.md

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title: Regional redundancy and failover recovery with Azure Managed Lustre
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description: Techniques to provide failover capabilities for disaster recovery with Azure Managed Lustre
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description: Understand techniques to provide failover capabilities for disaster recovery with Azure Managed Lustre
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author: pauljewellmsft
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ms.author: pauljewell
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ms.topic: conceptual
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ms.date: 05/08/2023
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ms.date: 11/11/2024
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# Use multiple clusters for regional failover recovery
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As your workflow proceeds in your primary region, you must manually save data in the blob storage outside of the region. If the cluster region becomes unavailable, you can create another Azure Managed Lustre instance in a secondary region, connect to the same storage, and resume work from the new cluster.
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> [!NOTE]
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> This failover plan does not cover a complete outage in a storage account's region.
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> This failover plan doesn't cover a complete outage in a storage account's region.
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> Managed Lustre does support locally redundant storage (LRS), zone-redundant storage (ZRS), geo-redundant storage (GRS), read-access-geo-redundant storage (RAGRS), geo-zone-redundant storage (GZRS), and read-access-geo-zone-redundant storage (RA-GZRS).
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> Azure Managed Lustre supports locally redundant storage (LRS), zone-redundant storage (ZRS), geo-redundant storage (GRS), read-access-geo-redundant storage (RAGRS), geo-zone-redundant storage (GZRS), and read-access-geo-zone-redundant storage (RA-GZRS).
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## Planning for regional failover
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azure-managed-lustre/automount-clients-fstab.md

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ms.topic: how-to
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ms.author: pauljewell
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ms.date: 07/26/2023
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ms.lastreviewed: 07/26/2023
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ms.date: 11/11/2024
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---
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```bash
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<MGS IP Address>@tcp:/lustrefs </mount_point> lustre defaults,noatime,flock,_netdev,x-systemd.automount,x-systemd.requires=network.service 0 0
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```
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> [!NOTE]
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> You can copy the example and input the appropriate MGS IP address and mount point for a functional default setup.
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In some cases, your Lustre client VM might need to start regardless of the status of your mounted AMLFS file system. In these cases, add the nofail option to your file system's entry in your /etc/fstab file.
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The fields in the line of code that you added to the /etc/fstab file do the following.
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azure-managed-lustre/blob-integration.md

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ms.date: 05/30/2024
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ms.lastreviewed: 06/05/2023
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ms.date: 11/11/2024
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# Intent: As an IT Pro, I want to be able to seamlessly use Azure Blob Storage for long-term storage of files in my Azure Managed Lustre file system.

azure-managed-lustre/configure-network-security-group.md

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| 112 | *rule-name* | Any | TCP | `AzureMonitor` | `VirtualNetwork` | Allow | Permit inbound flows from the AzureMonitor service tag. Allow TCP source port 443 only. |
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| 120 | *rule-name* | Any | Any | Any | Any | Deny | Deny all other inbound flows. |
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The inbound security rules in the Azure portal should look similar to the following screenshot. You should adjust the subnet IP address/CIDR range and other settings based on your deployment:
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The inbound security rules in the Azure portal should look similar to the following screenshot. The screenshot is provided as an example; consult the table for the complete list of rules. You should adjust the subnet IP address/CIDR range and other settings based on your deployment:
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:::image type="content" source="media/network-security-group/inbound-security-rules.png" alt-text="Screenshot showing inbound security rules for a network security group in the Azure portal." lightbox="media/network-security-group/inbound-security-rules.png":::
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| 1000 | *rule-name* | Any | Any | `VirtualNetwork` | `Internet` | Deny | Deny outbound flows to the internet. |
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| 1010 | *rule-name* | Any | Any | Any | Any | Deny | Deny all other outbound flows. |
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The outbound security rules in the Azure portal should look similar to the following screenshot. You should adjust the subnet IP address/CIDR range and other settings based on your deployment:
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The outbound security rules in the Azure portal should look similar to the following screenshot. The screenshot is provided as an example; consult the table for the complete list of rules. You should adjust the subnet IP address/CIDR range and other settings based on your deployment:
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:::image type="content" source="media/network-security-group/outbound-security-rules.png" alt-text="Screenshot showing outbound security rules for a network security group in the Azure portal." lightbox="media/network-security-group/outbound-security-rules.png":::
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azure-managed-lustre/connect-clients.md

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ms.date: 03/15/2024
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ms.date: 11/11/2024
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# Intent: As an IT Pro, XXX.

azure-managed-lustre/create-aml-file-system-terraform.md

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ms.service: azure-stack
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ms.date: 10/25/2023
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ms.date: 11/11/2024
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azure-managed-lustre/create-file-system-portal.md

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azure-managed-lustre/create-file-system-resource-manager.md

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title: Create an Azure Managed Lustre file system by using Azure Resource Manager templates
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description: Learn how to use Azure Resource Manager templates with JSON or Bicep to create an Azure Managed Lustre file system.
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