连续启用股票（仅SMB）

  • 2021年8月10日
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徽章 +4

持续文件处理SMB共享的持续可用性（CA）。

在服务中断期间，通过使用持久文件手柄和高可用性功能，SMB共享仍然可以连续可用。持久文件处理通过在中断之前自动将用户重新连接到文件服务，从而减少了数据的不可用期。

文件存储有关群集中每个FSVM可用的持久卷组的打开锁定信息。在失败期间，FAL-OVER FSVM可以访问卷组。持续文件处理，让客户端等待重新连接，而无需通知用户有关连接故障。结果，对用户和应用程序无缝的破坏是无缝的。

在锁定间隔内，文件不会阻止NFS客户端访问文件。文件仅阻止SMB客户端在断开状态期间访问文件。周期性处理程序清理了每24小时断开连接的持久文件的陈旧锁。同步写入CA共享可能会影响性能。Nutanix建议对元数据较少且I/O更大程度力工作负载（例如VHD或VHDX基于VHDX的个人资料磁盘）进行持续可用性，而性能影响很小。

启用持续可用性

  1. 要确认连续可用性的状态，请更换共享名称并检查共享配置文件

nutanix@fsvm $ afs share.list sharename = share-name

  1. 替换股票名称并启用共享的持续可用性

nutanix@fsvm $ afs share.edit share-name continous_availability = true




拉阿吉
Persistent file handles facilitate continuous availability (CA) for SMB shares.<\/span><\/p>

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During the disruption of service, SMB shares remain continuously available by using the persistent file handles and the high-availability features. Persistent file handles reduce the period of data unavailability by automatically reconnecting users to the file service in-use before the disruption.<\/span><\/p>

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Files store open lock information on persistent volume groups available for every FSVM in the cluster. During a fail-over, the fail-over FSVM can access the volume group. Persistent file handles let clients wait to reconnect without notifying the user about the connection failure. As a result, disruptions are seamless to users and applications.<\/span><\/p>

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During a lock protection interval, Files does not prevent NFs clients from accessing the file. Files only prevent SMB clients from accessing files during the disconnected state. The periodic handler cleans up stale locks for the disconnected persistent file handles every 24 hours. Synchronous writes on CA shares may impact performance. Nutanix recommends continuous availability for shares with less metadata and more I\/O intensive workloads, such as VHD or VHDx based profile disks, where performance impact is minimal.<\/span><\/p>

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Enabling Continuous Availability<\/span><\/p>

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  1. \t

    To confirm the status of continuous availability, replace the share-name and check the share profile<\/span><\/p>\t<\/li><\/ol>

    nutanix@fsvm$ afs share.list sharename=share-name<\/span><\/span><\/p>

    \u00a0<\/p>

    1. \t

      Replace the share-name and enable continuous availability on the share<\/span><\/p>\t<\/li><\/ol>

      nutanix@fsvm$afs share.edit share-name continous_availability=true<\/span><\/span><\/p>




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