Enhanced data reliability - Disk drive patrol
Data of ETERNUS AF/ETERNUS DX are protected via a disk drive patrol function. An internal controller regularly checks the disk drives, in background, to detect errors and write failures. This process also ensures that data consistency within the volume group is also maintained.
The data on each disk drive is read, and if an error is detected, data is reconstructed using redundant information contained within the volume group. The corrected data is then written to a new valid area on the disk drive.
- Higher data reliability as data errors are quickly found and corrected (by reconstruction) and disk write failures are avoided.
||ETERNUS AF250 S2/AF250
ETERNUS AF650 S2/AF650
|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
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