Configuration Definition File; Figure 2.23 Configuration Definition Of Paired Volumes - Hitachi TAGMASTORE MK-90RD011-25 User Manual

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
configurations and their configuration definition file(s). See section 3.4 for instructions on
creating the CCI configuration file.
Figure 2.23 illustrates the configuration definition of paired volumes. Figure 2.24 shows a
sample configuration file for a UNIX-based operating system. Figure 2.25 shows a sample
configuration file for a Windows operating system.
Configuration definition file
G1,Oradb1... P1,T1,L1
G1...HOSTB
G2,Oradb2... P2,T2,L3
G2,Oradb3... P2,T2,L4
G2...HOSTC
P2,T2,L3
Explanation of symbols:
Pn: Port name
Tn: Target ID
Ln: LUN number

Figure 2.23 Configuration Definition of Paired Volumes

50 Chapter 2 Overview of CCI Operations
HOSTA
Special file
P1,T1,L1
L1
L3
L4
Hitachi RAID
HOSTB
Special file
P3,T2,L2
G1,Oradb1
Paired logical volume
Oradb2
Oradb3
Group = G2
HOSTC
Special file
Configuration definition file
G1,Oradb1...P3,T2,L2
G1...HOSTA
L2
Hitachi RAID
L1
L2
Hitachi RAID
P4,T1,L1
Configuration definition file
G2,Oradb2...P4,T1,L1
G2,Oradb3...P4,T1,L2
G2...HOSTA