50 Chapter 2 Overview of CCI Operations
2.8.4 Configuration Definition File
The CCI configuration definition file is the text file which defines connected hosts and the
volumes and groups known to the CCI instance. Physical volumes (special files) used
independently by the servers are combined when paired logical volume names and group
names are given to them. The configuration definition file describes the correspondence
between the physical volumes used by the servers and the paired logical volumes and the
names of the remote servers connected to the volumes. See section 2.9 for sample CCI
configuration
s and their configuration definition file(s). See section 3.4 for instructions on
creat
ing the CCI configuration file.
Figure 2.23 illustrates the configuration definition of paired volumes. Figure 2.24 shows a
sample configuration file for a U
NIX-based operating system. Figure 2.25 shows a sample
conf
iguration file for a Windows operating system.
L4
L3
L2
L1
Group = G2
Oradb2
Oradb3
G1,Oradb1... P1,T1,L1
G1...HOSTB
G2,Oradb2... P2,T2,L3
G2,Oradb3... P2,T2,L4
G2...HOSTC
L1
L2
Paired logical volume
G1,Oradb1
Special file
P1,T1,L1
P2,T2,L3
P3,T2,L2
HOSTA
G1,Oradb1...P3,T2,L2
G1...HOSTA
Special file
HOSTB
G2,Oradb2...P4,T1,L1
G2,Oradb3...P4,T1,L2
G2...HOSTA
Special file
HOSTC
P4,T1,L1
Configuration definition file
Configuration definition file
Configuration definition file
Explanation of symbols:
Pn: Port name
Tn: Target ID
Ln: LUN number
Hitachi RAID
Hitachi RAID
Hitachi RAID
Figure 2.23 Configuration Definition of Paired Volumes
