Understanding and Designing Serviceguard Disaster Recovery Architectures

Table 6 Comparison of disaster recovery Cluster Solutions (continued)
ContinentalclustersMetroclusterExtended Distance Cluster
for RAC (HP-UX only)
Extended Distance ClusterAttributes
or
or
Metrocluster EMC
SRDF
Metrocluster 3PAR
Remote Copy
or
or
Toolkits for Data
Replication solutions)
Metrocluster EMC SRDF
On Linux:
or
Serviceguard for Linux+
Customer-selected
data replication
subsystem
Metrocluster with
Continuous Access XP
P9000 for Linux
CC with RAC using
CVM/CFS on HP-UX:
or
Metrocluster with
Continuous Access EVA
P6000 for Linux
Serviceguard+
SGeRAC + CVM/CFS
+ Continentalclusters
On Linux:
or
Serviceguard for
Linux+
Metrocluster with 3PAR
Remote Copy for Linux
Continentalclusters for
Linux
or
Metrocluster with
Continuous Access XP
P9000 for Linux
or
Metrocluster with
Continuous Access
EVA P6000 for Linux
or
Metrocluster with
3PAR Remote Copy
for Linux
or
Cluster Quorum and
Arbitrator Nodes
Cluster Quorum and
Arbitrator Nodes
Dual Lock disks (for 2 to
4 nodes), quorum server
(2 to 16 nodes)
On HP-UX:
Dual Lock disks (for 2 to 4
nodes), quorum server (2
to 16 nodes)
Quorum
mechanism
supported
On Linux:
Quorum server
N/AN/AN/AOn HP-UX:Recovery
point
N/A
objective
threshold
On Linux:
To control the amount of
accepted data loss in
seconds and prevent the
package from starting on
alternate node, you can
configure the
RPO_TARGET package
parameter.
74 Comparison of Disaster Recovery Solutions