LUN consolidation between different RAID groups - LUN Concatenation

LUN Concatenation is a function that is used to add new area to a volume and so expand the volume capacity available to the server. This function enables the reuse of leftover free area in a RAID group and can be used to solve capacity shortages.
Unused areas, which may be either part or all of a RAID group, are used to create new volumes that are then added together (concatenated) to form a single large volume.
The capacity can be expanded during an operation.

Note: LUN Concatenation is an equivalent function of RAID Consolidation.

Consolidating unused areas in different RAID groups, and making a new logical volume (LUN2)

LUN Concatenation

"LUN Expansion function" that consolidates unused areas with existing LUNs enabling much higher capacity LUN creation is also provided.


  • Provides efficient disk drive usage by making consolidating dispersed unused space into a LUN
  • Provides for larger capacity logical volumes with reasonable RAID organization to minimize performance degradation upon "Rebuild" as well as improve availability in case of a failure

Product Requirements

Supported StoragesAll-Flash ArraysETERNUS AF150 S3
ETERNUS AF250 S3/S2, AF250
ETERNUS AF650 S3/S2, AF650
Hybrid Storage SystemsETERNUS DX60 S5/S4/S3
ETERNUS DX100 S5/S4/S3, DX200 S5/S4/S3
ETERNUS DX500 S5/S4/S3, DX600 S5/S4/S3
ETERNUS DX8700 S3/S2, DX8900 S4/S3
ETERNUS DX60 S2, DX80 S2, DX90 S2
ETERNUS DX400 S2 series
Supported ServersMission Critical IA/UNIX/Industry Standard Server

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Further Information

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