Figure 70 Copy Path Bandwidth Limit - Fujitsu ETERNUS DX100 S4 Design Manual

3. SAN Functions
Stable Operation via Load Control
●
REC Bandwidth Limit (Remote Copy QoS)
A bandwidth upper limit can be set for each copy path in the remote copy session.
Even if a specific path fails, the line bandwidth can be maintained without centralizing the load to
other paths.
The bandwidth limit can be specified in increments of Mbit/s.

Figure 70 Copy Path Bandwidth Limit

Normal operation
REC path setting
Effective line speed
400Mbit/s
RA
RA
ETERNUS DX
Fujitsu Storage ETERNUS DX100 S4/DX200 S4, ETERNUS DX100 S3/DX200 S3 Hybrid Storage Systems Design Guide (Basic)
1 path fails
QoS
200Mbit/s
200Mbit/s
200Mbit/s
200Mbit/s
123
Copyright 2023 Fujitsu Limited
REC path setting
Effective line speed
QoS
400Mbit/s
Failure
200Mbit/s
RA
200Mbit/s
RA
ETERNUS DX
Even if a specific
path fails, steady load
can be maintained
200Mbit/s
P3AM-7642-32ENZ0