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U41117-J-Z125-7-76 51
CentricStor - Virtual Tape Library Optional system functions
Figure 17: Example of Dual Save functionality
In accordance with the assignment rules for the volume group functionality (see page 64),
the logical volumes from LVG 1 (LV0001-LV3000) are mirrored on the physical volumes of
PVG 1 (PV0001-PV0300) and PVG 2 (PV0301-PV0600) in the robot Archive1. The logical
volumes of LVG 2 (LV3001-LV6000) are duplicated in Archive1 on PVG 3 (PV0701-
PV0800) and in Archive2 on PVG 4 (PV0801-PV0900), where the two robots are located
some distance apart.
LVG 1 LVG 2
CentricStor
PV0001
PV0002
PV0003
...........
PV0300
PVG 1
PV0301
PV0302
PV0303
...........
PV0600
PVG 2
PV0701
PV0702
PV0703
...........
PV0800
PVG 3
PV0801
PV0802
PV0803
...........
PV0900
PVG 4
Archive1
Archive2
LV0001
LV0002
LV0003
...........
LV3000
LV3001
LV3002
LV3003
...........
LV6000
Host1
Host2
LVG 1
LVG2