A
asynchronous data replication, 39
C
cluster
extended distance, 22 FibreChannel, 52 metropolitan, 23 wide area, 27
cluster maintenance, 49 configuring, 46
disaster tolerant Ethernet networks, 46 disaster tolerant WAN, 46
consistency of data, 38 continental cluster, 27 currency of data, 38
D
data center, 17 data consistency, 38 data currency, 38 data recoverability, 38 data replication, 38
FibreChannel, 52 ideal, 44 logical, 42
synchronous or asynchronous, 39 DATA_REP Variable
edit, 77 disaster recovery
automating, 48 services, 48
disaster tolerance evaluating need, 14
disaster tolerant architecture, 17 cluster types, 18 Continentalclusters WAN, 46 definition, 16 FibreChannel cluster, 52 guidelines for architecture, 37 limitations, 47
managing, 48
metropolitan cluster rules, 23 staffing and training, 49
Index
E
Ethernet, disaster tolerant, 46 evaluating need for disaster tolerance, 14 Extended Distance Cluster
configuring, 66 installing, 63 prerequisites, 63
extended distance cluster benefits, 22 building, 51
F
FibreChannel clusters, 52
G
geographic dispersion of nodes, 37
L
Link Down Timeout, 69 logical data replication, 42
M
MD Device
create and assemble, 72 MD mirror device
create, 66 metropolitan cluster
definition, 23
multiple points of failure, 17
MULTIPLE_DEVICES AND COMPONENT_DEVICES, 82
N
networks
disaster tolerant Ethernet, 46 disaster tolerant WAN, 46
O
general guidelines, 49
P
package control script configure, 67
Persistent Device Names Using, 71
103
