Windows 10: VM's using Physical HDD's and software RAID - error with Windows HOSTS

Discus and support VM's using Physical HDD's and software RAID - error with Windows HOSTS in Windows 10 Virtualization to solve the problem; Yep this makes sense. You define RAID arrays in real life too using whole physical disks, not partitions. *Smile Hi there @slicendice That partition... Discussion in 'Windows 10 Virtualization' started by jimbo45, Apr 5, 2018.

  1. jimbo45 Win User

    VM's using Physical HDD's and software RAID - error with Windows HOSTS


    Hi there @slicendice
    That partition wasn't part of the array though.

    However deleting it from the VM config you can get back your data

    ......................

    [root@hestur jim]# mdadm --create --verbose /dev/md1 --level=0 --raid-devices=3 /dev/sdb /dev/sdc /dev/sdd
    mdadm: chunk size defaults to 512K
    mdadm: partition table exists on /dev/sdb
    mdadm: partition table exists on /dev/sdb but will be lost or
    meaningless after creating array
    mdadm: partition table exists on /dev/sdc
    mdadm: partition table exists on /dev/sdc but will be lost or
    meaningless after creating array
    mdadm: partition table exists on /dev/sdd
    mdadm: partition table exists on /dev/sdd but will be lost or
    meaningless after creating array
    Continue creating array? y
    mdadm: Defaulting to version 1.2 metadata
    mdadm: array /dev/md1 started.
    [root@hestur jim]# lsblk
    NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
    sda 8:0 0 200G 0 disk
    ├─sda1 8:1 0 1G 0 part /boot
    └─sda2 8:2 0 199G 0 part
    ├─cl-root 253:0 0 50G 0 lvm /
    ├─cl-swap 253:1 0 2G 0 lvm [SWAP]
    └─cl-home 253:2 0 147G 0 lvm /home
    sdb 8:16 0 3.7T 0 disk
    └─md1 9:1 0 9.1T 0 raid0
    sdc 8:32 0 2.7T 0 disk
    └─md1 9:1 0 9.1T 0 raid0
    sdd 8:48 0 2.7T 0 disk
    └─md1 9:1 0 9.1T 0 raid0
    sr0 11:0 1 1024M 0 rom
    [root@hestur jim]# mount /dev/md1 -t auto -o rw /mnt/DV2

    Now all my data is back and on re-boot the RAID array is there again


    VM's using Physical HDD's and software RAID - error with Windows HOSTS [​IMG]


    Don't do any re-formatting or you will lose data.

    Cheers
    jimbo
     
    jimbo45, Apr 5, 2018
    #1
  2. jimbo45 Win User

    Hi there
    Watch carefully when using physical HDD's with VM (i.e use the Native FS on the whole Disk - without GPT info with file systems such as EXT4 / XFS ) on a WINDOWS HOST.

    The problem arises in this type of case :
    4HDD's D1 GPT Partitioned C for Windows etc, D as XFS.
    D2,3,4 formatted totally XFS. D2,3,4 defined as single RAID 0 array.

    Start up the VM.

    The raw partition on D1 will stop any changes to partition tables so next time you boot the VM the HDD's will be shown as 4 single HDD's every time you power on the VM.

    The RAID 0 array can be re-started without loss of data (you need to re-create it again and not reformat the fs). Just use the mdadm command to redefine the array again and it will start OK.

    If you remove the partition D from the VM then everything is fine again so if you want physical HDD's use the entire HDD not a RAW partition. If you need more space then define the partition D as a Virtual HDD -- even though using VHD's lowers performance of the I/O subsystem -- you are probably better off sharing the Windows Native partition with the VM in this case.

    Just a little trap for the unwary.

    Cheers
    jimbo

    :)
     
    jimbo45, Apr 27, 2018
    #2
  3. BPZ
    BPZ Win User
    port win 10 on local vm

    - Bought a refurbished machine with win 10 + digital entitlement (most probably after win 8 upgrade)

    - Created a vm via vmware as "image" of the physical system

    - The vm win10 guest seemed to have no activation problems on win10 host

    Problems come when launching the vm on linux host (same physical machine): the win10 guest is not able to activate. Besides this causes a bunch of key/mouse etc.. driver unsolvable problems.

    All this was pretty easy with pid oem licences (e.g. w7). How can that be solved, if it could?

    Thanks for reading

    P
     
  4. VM's using Physical HDD's and software RAID - error with Windows HOSTS

    The Network List Manager reports no connectivity to the internet. Yet internet works fine.

    Hello.

    Windows 10, VMware Workstation 14 Pro with Sophos XG Firewall as a guest. Physical network card is bridged to the Sophos Firewall guest, and has IPv4 disabled on the host. A host-network has been created for the physical computer to talk to the Sophos Firewall.
    This forces all traffic on the physical host to go through the Sophos VM on its way out to the Internet. This works fine, the internet is surfable, the physical computers get an IP.

    However, Windows says no internet. It would seem Windows 10 is not capable of recognising a virtual adaptor might be the Internet gateway. The problem this causes is that Windows Updates don't work and Outlook won't work. Yet Internet is fully there.

    How can I make this work.

    Thanks
     
    oztasdevil, Apr 27, 2018
    #4
  5. Yep this makes sense. You define RAID arrays in real life too using whole physical disks, not partitions. *Smile
     
    slicendice, Apr 27, 2018
    #5
Thema:

VM's using Physical HDD's and software RAID - error with Windows HOSTS

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