Single node loopback storage VM?

Discussion in 'Windows Server, Hyper-V Virtualization' started by Ouroboros, Jul 24, 2019.

?

Single Node local storage VM?

  1. FreeNAS

    0 vote(s)
    0.0%
  2. Ubuntu+ZoL

    0 vote(s)
    0.0%
  3. Other OS/VSAN

    0 vote(s)
    0.0%
  4. You're crazy

    2 vote(s)
    50.0%
  5. You're crazy, like a fox...

    2 vote(s)
    50.0%
  1. Ouroboros

    Ouroboros New Member

    Joined:
    Jul 26, 2012
    Messages:
    20
    Likes Received:
    0
    I'm trying to get a feel for alternatives to using Storage Spaces on a single node workstation tower due to the minimum requirements and inefficiencies of Storage Spaces when using multi-resilient volumes (mirror journal tier, mirror cache tier, dual parity bulk tier leads to a minimum 3+3+7 configuration).

    With Windows 2019 (and perhaps a future windows 10 Pro version after 1903 if the SKU lockout is released, perhaps if hibernation is disabled), one could do Hyper-V discrete device assignment (DDA) for DDA NVMe PCIe passthrough to a local storage VM, then present the resulting storage back to the host workstation as a loopback iSCSI mount. A FreeNAS VM could use ZFS to have better device efficiency, and being pure NVMe would mean ZFS has complete control of the storage rather than through an abstraction, but is this even close to realistic?

    How are others handling local storage for single node machines if one is not satisfied with Storage Spaces, but want something other than traditional hardware RAID? Would Starwind VSAN be more reasonable even in a single node loopback scenario?
     
    #1
  2. LaMerk

    LaMerk Member

    Joined:
    Jun 13, 2017
    Messages:
    30
    Likes Received:
    4
    Actually, for single node you should use either Hardware or Software RAID. NAS and SAN are not about local redundancy. In my opinion h/w RAID preferred. Software RAID is defined by the OS you run on the node – for windows Storage Spaces, for Linux – mdadm or lvm. Running VM inside for single system is a bad idea with decreased performance and less stability.

    Starwind vsan is a great software for storage virtualization and high availability, but it is not a local software RAID. There is an article which describes single node high availability with Starwind for home lab - https://www.hyper-v.io/setting-windows-failover-cluster-home-lab/
     
    #2
  3. Deslok

    Deslok Well-Known Member

    Joined:
    Jul 15, 2015
    Messages:
    1,026
    Likes Received:
    108
    I've used a "loopback vm" to test things before when I didn't have physical hardware for a 10gbe link but I wouldn't suggest it for this scenario, a cheap raid card would likely be my first choice.
     
    #3
Similar Threads: Single node
Forum Title Date
Windows Server, Hyper-V Virtualization Single NIC, multiple VLANs - Server 2012R2 & Arista switch May 12, 2015
Windows Server, Hyper-V Virtualization TOR Switch Needed for 3-Node Hyper-Converged S2D 2016 Cluster Feb 23, 2018
Windows Server, Hyper-V Virtualization Hyperconverged Storage Solutions for 3-4 Node Cluster May 2, 2016

Share This Page