In vSAN all-flash, can I stripe two PCIe caching devices together?

Discussion in 'VMware, VirtualBox, Citrix' started by frogtech, May 16, 2019.

  1. frogtech

    frogtech Well-Known Member

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    I have a very specific hardware setup that won't be changing and for the caching devices I want them to be write intensive. Due to budget constraints I'm limited to some smaller devices but want to know is it possible within the vSAN/vSphere interface to stripe those two caching devices together as one effectively larger cache device?

    They're 2.5" PCIe SSDs, I can't RAID 0 them outside of the hypervisor.

    Thanks.
     
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  2. Rand__

    Rand__ Well-Known Member

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    No.
    If you present them as single drives then you can only use them as single drives. You could use two diskgroups though with one drive each if that helps
     
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  3. frogtech

    frogtech Well-Known Member

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    Would performance suffer or actually improve and would it provide any increased resilience against disk failures?
     
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  4. Rand__

    Rand__ Well-Known Member

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    if you run 2 diskgroups (per server) you can distribute slices to more than one dg per box , so depending on vsan policies more resilience or more performance.
     
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