HP XP7 Storage - Manual (Page 212)

Figure 71 SLPR configuration on dual hosts
To operate SLPR#N, assign the command device. If HostB has a command device for SLPR#N, the
paircreate
command is permitted. However, the raidscan -p CL3-A command via HostA
is unable to scan a port because the specified port is different than the SLPR of the command
device. In this case, raidscan -p CL3-A command must be operated via HostB.
Figure 72 Operation across SLPRs using two command devices on dual hosts
To operate SLPR#N, share the command device. If HostB has a shared command device for SLPR#N,
the paircreate command is permitted. Also, the raidscan -p CL3-A command (via HostA),
is allowed to scan a port because the shared command device has the Bitmap settings SLPR#M
and SLPR#N.
212 Examples of using RAID Manager commands