EMC VPLEX array supports storage virtualization. It means that
one or more back-end arrays (for example, Symmetrix) can provide storage to the VPLEX array. The storage that is used in a VPLEX cluster can be physical
or virtual.
In this post, we'll discuss about virtualized storage for VPLEX.
In this post, we'll discuss about virtualized storage for VPLEX.
Storage Volume (SV): Essentially, it's the storage provided by the back-end array. On top of SVs, you can create Extents. There can be multiple Extents on one SV, or you can create one-to-one mapping between an Extent and a Storage Volume.
Using these Extents, you can then create Devices. Again, you can form a Device using multiple Extents, or create one-to-one mapping between an Extent and a Device.
And lastly, Virtual Volumes (VV) are created from these Devices. A VV can be created using a normal Device or a Distributed Device. If you have used a normal Device for the creation of VV, those VVs are referred to as simply Virtual Volumes. On the other hand, if you have used a Distributed Device for the creation of VV, those VVs are referred to as Distributed VVs.
Using these Extents, you can then create Devices. Again, you can form a Device using multiple Extents, or create one-to-one mapping between an Extent and a Device.
And lastly, Virtual Volumes (VV) are created from these Devices. A VV can be created using a normal Device or a Distributed Device. If you have used a normal Device for the creation of VV, those VVs are referred to as simply Virtual Volumes. On the other hand, if you have used a Distributed Device for the creation of VV, those VVs are referred to as Distributed VVs.
