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Partition RAID 5

  • RAID 5 is a storage medium solution that has great performance, high security, and low cost. It is the compromise solution of RAID 0 and RAID 1. RAID 5 has similar data accessing speed with RAID 0. But it saves parity information at the same time so it is a little bit slower than single disk. Multiple pieces of data are corresponding to one piece of parity information, so RAID 5 has higher disk space usage rate and lower cost than RAID 1. RAID 5 can be realized by Disk Array Controller or some professional disk management software. After converting basic disk to dynamic disk, we can partition RAID 5 with professional dynamic disk manager. RAID 5 volume guarantees data security. Compared with mirrored volume, RAID 5 has lower security but higher disk usage rate. This kind of RAID 5 made by software is called software RAID 5. And this is the simplest and most effective way.

    Realize the RAID performance in dynamic disk
    You can try to convert basic disk to dynamic disk and create RAID 5 volume if you have three disks in your computer and your operating system supports RAID volume. To create RAID 5 volume we need at least three disks but 32 disks at the most. RAID 5 volume can not include boot partition or system partition.



    This picture is the main interface of Windows built-in disk management tool. We can use it to create RAID 5 volume. However, if we need to resize RAID 5 volume, we have to delete the original RAID 5 volume and then create a new one. It is strongly suggested to use professional dynamic disk manager, MiniTool Partition Wizard, to resize RAID 5 volume.

    Use MiniTool Partition Wizard to expand RAID 5 volume
    In dynamic disk, resizing volume is much simpler than resizing partition in basic disk. Basic disk only allows expanding partition with the adjacent unallocated space but dynamic disk has no such limit. We can expand volume with any piece of unallocated space.



    We can see there is no adjacent unallocated space in the main interface of MiniTool Partition Wizard, but we can still expand partition RAID 5. Select it and click "Move/Resize" button in toolbar.



    In this interface, expand RAID 5 by dragging partition handle border. Click "OK" button to return to main interface after setting.



    At this time we can find the original RAID 5 volume is expanded and the added part is not adjacent to the volume. Click "Apply" button and all operations will be executed.

    Resizing RAID 5 volume is only a small part of MiniTool Partition Wizard functions. It has other excellent dynamic disk management functions, such as: create volumes of various file systems, delete volume, and movie volume, etc. Visit the official website of MiniTool Partition Wizard to get more information about it: https://www.partitionwizard.com/.