RDF System Management Manual for J-series and H-series RVUs (RDF Update 13)

Figure 16 shows the configuration where individual standby and backup systems are located at
separate sites.
Figure 16 ZLT Configuration With Standby and Backup Systems Located at Separate Sites
System A
(RDF primary)
(Limited by
disk technology)
RDF traffic
(Expand lines)
ZLT recovery traffic
(Expand lines)
X fabric Y fabric
System B
(RDF backup)
System C
(RDF standby)
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Audit-Trail Disk
Audit-Trail Disk
If the standby and backup systems are not one and the same, you must remember to set up remote
passwords between the standby and backup systems. You must do so with the same user ID that
has control over starting and stopping RDF.
How It Works 331