Examples for configuration and protected volumes – HP XP P9500 Storage User Manual
Page 177
Examples for configuration and protected volumes
Case (1): Two Hosts (
Example for the two-host configuration (page 177)
). In protect mode Ora2
are rejected to operate the paired volume, because of Unknown for Grp4 on HOST2.
Case (2): One Host (
Example for the one-host configuration (page 177)
). In protect mode Ora1 and
Ora2 are rejected to operate the paired volume, because of Unknown for Grp2 and Grp4 on
HOST1. If HOST1 has a protection OFF command device, then Ora1 and Ora2 are permitted to
operate the paired volume.
NOTE:
The Data Protection Facility is implemented by only RAID Manager. RAID Manager needs
to know the protection attribute for the command device whether should be permitted the operation
for paired volume. If HORCM has protection ON command device at its time, then HORCM checks
a permission for a paired volume.
Figure 60 Example for the two-host configuration
Figure 61 Example for the one-host configuration
Data Protection facility 177