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Dell Unity™ All Flash and Unity Hybrid Hardware Information Guide

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Disk processor enclosure

Two types of disk drive DPEs are supported:

  • either 3.5-inch disk drives (hot-swappable)
  • either 2.5-inch disk drives (hot-swappable)
NOTE:Disk drives used in the 2U, 12 disk drive DPE cannot be interchanged with the disk drives from a 2U, 25 disk drive DPE.
NOTE:When calculating the number of drives supported, the DPE is included in the total drive slot quantity.

Each model supports a different number of drive slots and DAEs.

  • Unity 300F/350F and Unity 300 - 150 drive slots
  • Unity 400F/450F and Unity 400 - 250 drive slots
  • Unity 500F/550F and Unity 500 - 500 drive slots
  • Unity 600F/650F and Unity 600 - 1000 drive slots

The number of DAEs supported by the Unity™ All Flash and Unity Hybrid is variable depending on the drive type in the DPE and DAEs. A Dell Unity™ All Flash and Unity Hybrid system cannot be configured with more drive slots than supported and will fault the DAE that contains the slots above the system limits.

Unless the array is restricted by its slot count, each back-end loop could contain:

  • Ten 3U, 15-drive DAEs (150 slots)
  • Ten 2U, 25-drive DAEs (250 slots)
  • Three 3U, 80-drive DAEs (240 slots)

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