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Concepts

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  • How pools and volume groups work
    To provision storage, you create either a pool or volume group that will contain the Hard Disk Drives (HDD) or Solid State Disk (SSD) drives that you want to use in your storage array.
  • Automatic versus manual pool creation
    Depending on your storage configuration, you can allow the system to create pools automatically or you can manually create them yourself. A pool is a set of logically grouped drives.
  • Functional comparison of pools and volume groups
    The function and purpose of a pool and a volume group are the same. Both objects are a set of drives logically grouped together in a storage array and are used to create volumes that a host can access.
  • How SSD Cache works
    The SSD Cache feature is a controller-based solution that caches the most frequently accessed data ("hot" data) onto lower latency Solid State Drives (SSDs) to dynamically accelerate system performance. SSD Cache is used exclusively for host reads.
  • SSD Cache restrictions
    Learn about the restrictions when using SSD Cache on your storage array.
  • Capacity terminology
    The following terms apply to storage objects and capacity.