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2 slpr configuration examples – Hitachi TAGMASTORE MK-90RD011-25 User Manual

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Chapter 4 Performing CCI Operations

4.21.2 SLPR Configuration Examples

4.21.2.1 Single Host

Figure 4.81 provides an example of when control is denied to the paircreate and raidscan
commands in the following cases:

„

The volume described on RM INST1 is different from the SLPR of the command device, so
the paircreate command cannot control the paired volume.

„

The specified port is different from the SLPR of the command device, so the raidscan -p
CL3-A
command cannot scan any ports that are defined as SLPR#N.








SLPR0 SLPR# M SLPR# N

Host

RM

INST0

RM

INST1

CM

PVOL

SVOL

CL1-A

CL3-A

Figure 4.81 SLPR Configuration on a Single Host

To operate SLPR#N, assign the command device. If RM INST1 has a command device for
SLPR#N, the paircreate command is permitted. However, the raidscan -p CL3-A command
(via RMINST0) will be unable to scan a port, because the specified port is different than the
SLPR of the command device. In this case, -p CL3-A must be operated via RMINST1, as shown
in the following example.