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Dyn Disk Volumes, File systems, Storage Spaces in Server 2012

    Question

  • Hi there

    I am learning and practicing for MCSA 2012 70-410 While going deeper in 'Local Storage' lessons. I got a confusion here:

    Q.1 Dynamic Disk: Volumes: simple, spanned, striped, mirror, raid-5

    during creation of spanned, striped, mirror and raid-5 volumes choices available for File Format is either NTFS or ReFS

    After these volumes have been created. I used Disk Management console and tried to re-format File Systems. I have the choices of all available like FAT, FAT32, NTFS, ReFS and it was possible to use any of these file formats on mentioned Volumes

    Why? while during creation of volume, choices are only NTFS/ReFS. If later any older formats on these volumes other than NTFS or ReFS, what would it matter.

    Q.2

    In Storage spaces, when I add a physical disk to storage pool, it disappears from Disk Management console as it should be because now it is being managed by storage subsystem. Now when I create a virtual disk in storage space, it also does not appear in disk management. since it has no volume and file system yet.

    But when I create a virtual volume on that Virtual disk it is initialized with a drive letter and appears as Basic disk with Primary partition type and volume as I configured in storage space

    I have full access to re-format this virtual volume in Disk management. Amazingly disk management is allowing me to format this partition as FAT, FAT32, NTFS and ReFS and I configured I can use them to format same virtual disk. Why is that?? 

    I mean for volumes being managed by storage subsystem, they must be restricted to be altered inside Disk Management in case if accidentally altered it can damage existing storage space setup.

    Another thing possible in this way using Disk Management is I can Extend this virtual volume to other disks. it will do but at the cost of making this virtual volume as Dynamic and hence volume will go out of storage space if done.

    and yet more I can select Add Mirror to this Virtual Volume right inside disk management console.

    Since in Disk Management it is not possible to get more details of Virtual Volume it just appears as Normal Basic Disk with primary partition, so chances of mistakenly altering it in Disk Management is high enough

    I am experimenting it for learning only. it is not a production system and we need to click refresh several times in Storage spaces and in Disk Management console to get most updated results.

    To summarize:

    1-Dynamic volumes spanned, striped, mirror and raid-5 at the time of creation in Disk Management, NTFS or ReFS. But after they have been created, I can re-format them as FAT, FAT32, NTFS and ReFS as I like. not supposed to be

    2-Virtual Volume in a storage space is not only visible in Disk Management but I can also re-Format them as FAT, FAT32, NTFS and ReFS not supposed to be because formatting inside server manager allows only NTFS or ReFS for a virtual volume

    3-Virtual Volume in a storage space has full access to operations in Disk Management. If I accidentally Extend this volume in Disk Management it allows to do so but it converts that Virtual Disk as Dynamic and then it goes out of Storage Pool

    4-Virtual Volume in storage space has also possibility to add mirror to it. in that case too it will convert this virtual disk to dynamic which will throw it out of storage space.

    your clarification awaited

    regards

    Monday, August 22, 2016 3:36 PM

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