Note:
For proper maintenance of TrueCopy operations, it is important to
determine if there are any faults in paired volumes, recover the volumes from
the failures as soon as possible, and continue operation in the original
system.
Note:
For information about the operational requirements and specifications
for TrueCopy, please see the
Hitachi TrueCopy® User Guide
for your storage
system.
TrueCopy takeover commands
Figure 6-5 Server failover system configuration on page 6-10
high-availability (HA) environment. When a server software error or a node
error is detected, the HA failover software causes the cluster manager (CM)
to monitor server programs and causes the CM of the standby node to
automatically activate the HA control script of the corresponding server
program. The HA control script usually contains database recovery
procedures, server program activation procedures, and other related recovery
procedures. The TrueCopy CCI takeover commands are also activated by the
HA control script.
Figure 6-5 Server failover system configuration
Legend
•
CM (Cluster Manager): Demon process that keeps the consistency of the
cluster by monitoring the node and server program in the cluster.
6-10
Data replication operations with CCI
Command Control Interface User and Reference Guide
Summary of Contents for HUS VM
Page 10: ...x Command Control Interface User and Reference Guide ...
Page 18: ...xviii Preface Command Control Interface User and Reference Guide ...
Page 78: ...2 50 CCI software environment Command Control Interface User and Reference Guide ...
Page 154: ...4 8 Starting up CCI Command Control Interface User and Reference Guide ...
Page 191: ...Provisioning operations with CCI 5 37 Command Control Interface User and Reference Guide ...
Page 280: ...6 56 Data replication operations with CCI Command Control Interface User and Reference Guide ...
Page 286: ...6 62 Data replication operations with CCI Command Control Interface User and Reference Guide ...
Page 302: ...7 16 Data protection operations with CCI Command Control Interface User and Reference Guide ...
Page 324: ...8 22 Examples of using CCI commands Command Control Interface User and Reference Guide ...
Page 524: ...9 200 Troubleshooting Command Control Interface User and Reference Guide ...
Page 529: ...Command Control Interface User and Reference Guide ...