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Non-stop RAID group capacity expansion - Logical Device Expansion

The Logical Device Expansion function provides increased capacity for a RAID group by real-time addition of disk drives while operations continue uninterrupted. This allows for the deployment and expansion of logical volumes (LUN) in 'non-stop' environments.

Expansion of a RAID5 (3+1) group to RAID5 (5+1) using spare disk drives and definition of a new LUN2 to cover the additional space.

Logical device expansion1

Addition of new disk drives to convert RAID5 (4+1) to RAID 1+0 (4+4)

Logical device expansion2

Benefits

  • Enables RAID group capacity increases by adding disk drives while retaining data
  • Enables reorganization of RAID groups to different levels and different capacities at the same time

Product Requirements

Supported Storages All-Flash Arrays ETERNUS AF250 S2/AF250
ETERNUS AF650 S2/AF650
ETERNUS DX200F
Hybrid Storage Systems/
Disk Storage Systems
ETERNUS DX60 S4/S3
ETERNUS DX100 S4/S3, DX200 S4/S3
ETERNUS DX500 S4/S3, DX600 S4/S3
ETERNUS DX8700 S3/S2, DX8900 S4/S3
ETERNUS DX60 S2/DX60
ETERNUS DX80 S2/DX80
ETERNUS DX90 S2/DX90
ETERNUS DX400 S2/DX400 series
ETERNUS DX8000 series
ETERNUS4000/ETERNUS8000
Supported Servers Mission Critical IA/UNIX/Industry Standard Server

*Note: Products/features/support content introduced on this page may be modified without notice.