All this time I store my operating system on SSD and big files in hard disk drive.

Say I want to enlarge my SSD storage. It's like speeding up hard disk but the other way round.

Basically I want windows to see my SSD and hard disk as one drive. The C drive.

  • 2
    Possible duplicate of Creating a "virtual disk" using multiple storage devices
    – user416
    Sep 30 '16 at 11:22
  • That one doesn't answer my question. Also that seems to be no way to do so.
    – user4951
    Sep 30 '16 at 19:54
  • 1
    Storage Spaces, available since Windows 8 and latter, seems like the exact thing you're looking for, and built-in in the OS. Only earlier systems would require external tools.
    – Alejandro
    Oct 1 '16 at 23:13

ZFS pool

The ZFS file system can pool together multiple physical drives into a single logical volume called storage pool.

OpenZFS is a commonly-used open-source implementation of ZFS. Built into some BSD OSes such as in TrueOS and in FreeBSD, some Linux distros, and elsewhere.

Oracle has their own proprietary fork of ZFS. Available in Solaris OS products.


I want windows to see

There seems to be no ZFS implementation for any Microsoft Windows OS, if that is what you meant by “windows” mention. See the Question: ZFS Like Alternatives on Windows. If this is a deciding factor for you, edit your Question to clarify.

Some answers there suggest you may get a pooling of physical storage similar to ZFS under Windows OS by using a Storage area Network (SAN).


You can achieve it using RAID 0 mode settings in BIOS, but it would basically defeat the advantage of the SSD speed. Detailed description can be found in Wikipedia. https://en.m.wikipedia.org/wiki/RAID Also I am not sure it would work on live system, so you probably would have to reinstall the Windows.

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