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Dell Storage Manager 2020 R1 Administrator's Guide

How Storage Virtualization Works

Storage Center virtualizes storage by grouping disks into pools of storage called Storage Types, which hold small chunks (pages) of data. Block-level storage is allocated for use by defining volumes and mapping them to servers. The storage type and storage profile associated with the volume determines how a volume uses storage.

Storage Center combines the following features to provide virtualized storage.

  • Disk Management – Sorts disks into disk folders and assigns a storage type based on the disk types.
  • Volumes – Allocate storage for use.
  • Storage Types – Define a datapage size and redundancy levels for the disk folder.
  • Data Progression – Moves pages between tiers and drive types, as well as among multiple RAID levels within the same tier.
  • Storage Profiles – Define how data progression moves pages between tiers.

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