Fujitsu ETERNUS DX100 S4 Basic Operation Manual page 66

Chapter 4 Process Time (Estimated)
4.2 Rebuild/Copyback Process Time
[Set RAID Group Parameter] specifies the rebuild priority for host access. When the Rebuild Priority is
"High", rebuild, copyback, and redundant copy performance can be improved.
Note that RAID group performance (throughput) may be reduced when a rebuild, copyback, or redundant
copy is being performed in the target RAID group.
FUJITSU Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Operation Guide (Basic)
66
Copyright 2017 FUJITSU LIMITED
P3AM-7662-09ENZ0