Nutanix中的MSC

r
Userlevel 1
徽章 +8
你好 -

Nutanix支持MSC（跨物理主机的聚类VM）吗？哪些ESXI/NOS版本支持MSC？

然后，我将如何向VM出现共享磁盘（法定人数等）？

谢谢。
    \n
    \nIs MSCS (clustering VMs across physical hosts) supported on Nutanix? What ESXi\/NOS versions support MSCS?
    \n
    \nHow would I then present the shared disks (quorum, etc...) to the VMs?
    \n
    \nThanks.","quoteUsername":"rvillarin","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
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    4个答复

    F3RM1N
    秩
    UserLevel 2
    徽章 +10
    由于缺乏RDM和SCSI 3持续保留的支持，因此不支持ESXI的NOS故障转移群集，因此该目标旨在解决迄今为止的未来版本中。
    从理论上讲，使用Hyper-V上的SMB3上的共享VHD应该可以使用，但是对此没有进行测试（AFAIK）。
    SQL Server始终打开，其他非共享磁盘群集技术是使用ESXI在NOS上进行聚类的唯一方法。在延伸时，您可以创建Windows VM作为ISCSI目标，并使用它来形成集群。但是，不是一个优雅的解决方案。
    \nTheoretically it should be possible with shared VHD on SMB3 with Hyper-V, but no testing has been done on that (AFAIK).
    \nSQL Server Always On and other non-shared disk clustering techniques are the only way of doing clustering on NOS with ESXi.At a stretch you could create a Windows VM as an iSCSI target and use that to form the cluster. Not an elegant solution however.","quoteUsername":"f3rm1n","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
    d
    徽章 +2
    现在，缺乏MSC支持对我们来说是一个大事，我们是一个准客户决定是否采用Nutanix。您是否有更多信息何时得到支持？即使是指导？AAGS（替代方案）的问题是在存储方面的头顶，即具有同一DB的多个副本。

    谢谢
    \n
    \nThanks","quoteUsername":"dazza","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
    G
    徽章 +4
    它自6月以来一直在Tech Preview中进行，因此您可以立即进行测试。
    http://vinfrastructure.it/2015/06/iscsi-strikes-back-in-nutanix-storage/
    ed
    VCDXNZ001
    秩
    UserLevel 3
    徽章 +19
    嗨，达扎，

    正如其他人指出的一篇博客文章，我会让您阅读。但是我想让您知道，还有其他选择可以允许Nutanix上的传统故障转移集群。例如Sios Technologies Datakeeper。我们尚未亲自测试或验证此选项，但它确实允许创建一个独立的故障转移集群，即使是跨站点也可以创建。

    至于数据的多个副本。我们发现，即使SQL Server工作负载，压缩也非常有效，即使它们本地使用页面压缩，并且根据环境的不同，节省的收益可能为30％或更高。因此，这有点降低了开销。

    故障转移群集具有其局限性，包括可用性可用的选项。在将来的版本中，我们将进一步减少距离的开销，以便客户获得更多可用的存储空间。在故障域隔离和数据保护方面，拥有重复的数据可能是一个好处。但是总会有贸易折扣。

    无论如何，最终我们希望让我们的客户确定其工作量的最佳保护方法，因此我们将发布对NOS的更新，该更新允许在访客ISCSI访问中，并支持SCSI 3持续预订，以允许创建故障转移群集。

    亲切的问候，

    迈克尔
    \n
    \nAs others have pointed to a blog article I'll let you read that. But I wanted to let you know that there are other options that will allow a traditional failover cluster on Nutanix. Such as SIOS Technologies Datakeeper. We have not tested or validated this option ourselves, but it does allow a stroage independent failover cluster to be created, even across sites.
    \n
    \nAs for the problem around multiple copies of the data. We've found that compression is very effective with SQL Server workloads, even if they natively use page compression, and savings can be 30% or more, depending on the environment. So this somewhat reduces the overheads.
    \n
    \nFailover clustering has its limitations, including the options that are available for availability. In future versions we will be reducing the capcity overheads even further, so customers get more usable storage space. Having that duplicated data can be a benefit when it comes to failure domain isolation and data protection. But there are always trade offs.
    \n
    \nAnyway, ultimately we want to allow our customers to decide the best protection approach for their workloads and so we will be releasing an update to NOS that allows for in guest iSCSI access with support for SCSI 3 Persistent Reservations to allow for failover clusters to be created.
    \n
    \nKind regards,
    \n
    \nMichael","quoteUsername":"vcdxnz001","translations":{"Common":{"like":"Like","unlike":"Unlike"},"Forum":{"Quote":"Quote","Share":"Share"}}}">
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