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[其他] What is new for Virtual SAN 6.5?

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想你时天气不佳 发表于 2016-10-18 23:11:05
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As most of you have seen by the explosion of tweets, Virtual SAN 6.5 was just announced. Some may wonder how 6.5 can be announced so fast after theBeta Announcement, well this is not the same release. This release has a couple of key new features, lets look at those:
  
       
  • Virtual SAN iSCSI Service   
  • 2-Node Direct Connect
           
    • Witness Traffic Separation for ROBO   
       
  • 512e drive support  
  Lets start with the biggest feature of this release, at least in my opinion, Virtual SAN iSCSI Service. This provides what you would think it provides: the ability to create iSCSI targets and LUNs and expose those to the outside world. These LUNs by the way are just VSAN objects, and these objects have a storage policy assigned to them. This means that you get iSCSI LUNs with the ability to change performance and/or availability on the fly. All of it through the interface you are familiar with, the Web Client. Let me show you how to enable it:
  
       
  • Enable the iSCSI Target Service

    What is new for Virtual SAN 6.5?

    What is new for Virtual SAN 6.5?
       
  • Create a target, and a LUN in the same interface if desired

    What is new for Virtual SAN 6.5?

    What is new for Virtual SAN 6.5?
       
  • Done

    What is new for Virtual SAN 6.5?

    What is new for Virtual SAN 6.5?
      
  How easy is that? Note that there are some restrictions in terms of use cases. It is primarily targeting physical workloads, MSCS with shared disks. It is not intended for connecting to other vSphere clusters for instance. Also, you can have a max of 1024 LUNs per cluster and 128 targets per cluster at most. LUN capacity limit is 62TB.
   

What is new for Virtual SAN 6.5?

What is new for Virtual SAN 6.5?
Next up on the list is 2-node direct connect . What does this mean? Well it basically means you can now cross-connect two VSAN hosts with a simple ethernet cable as shown in the diagram in the right. Big benefit of course is that you can equip your hosts with 10GbE NICs and get 10GbE performance for your VSAN traffic (and vMotion for instance) but don’t incur the cost of a 10GbE switch.
   This can make a huge difference when it comes to total cost of ownership. In order to achieve this though you will also need to setup a separate VMkernel interface for Witness Traffic. And this is the next feature I wanted to mention briefly. For 2-node configurations it will be possible as of VSAN 6.5 to separate witness traffic by tagging a VMkernel interface as a designated witness interface. There’s a simple “esxcli” command for it, note that <X> needs to be replaced with the number of the VMkernel interface:
  1. esxcli vsan network ip set -i vmk<X> -T=witness
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Then there is the support for 512e drives, note that 4k native is not supported at this point. Not sure what more to say about it than that… It speaks for itself.
   Oh and one more thing… All-Flash has been moved down from a licensing perspective to “ Standard “. This means anyone can now deploy all-flash configuration at no additional licensing cost. Considering how fast the world is moving to all-flash I think this only makes sense. Note though that data services like dedupe/compression/raid-5/raid-6 are still part of VSAN Advanced. Nevertheless, I am very happy about this positive licensing change!
谁主沉浮g 发表于 2016-10-19 05:54:33
在这个处处都要积分的时代,我不得不弄个NB的数字来显眼,于是我抄下了这段话,专门用来回帖
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Xswsytna4 发表于 2016-10-23 04:48:02
我是应该赞想你时天气不佳呢还是应该赞呢
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笑寒 发表于 2016-10-26 11:09:41
生前何必久睡,死后自会长眠……
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ejrr 发表于 2016-10-27 03:49:26
楼主的头像是本人吗?
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