Understanding and Designing Serviceguard Disaster Recovery Architectures

Table 4 Extended Clusters support for HP-UX 11i v3 (continued)
Notes for Extended Cluster SupportVolume ManagerRevisionProduct
Serviceguard A.11.20 and CVM/CFS 5.0.1 only. Supports
2, 4, 6, 8, 10, 12, 14, or 16 nodes for distances up to 100
KM.
CVM, CFSA.03.01-OR-A.03.02
Serviceguard A.11.20 and CVM/CFS 5.0.1 only. Supports
2, 4, 6, 8, 10, 12, 14, or 16 nodes for distances up to 100
KM.
CVM, CFSA.04.00.01-OR-A.04.01
Serviceguard/SGeRAC A.11.18 and CVM/CFS 5.0 only.
Supports 2, 4, 6, or 8 nodes for distances up to 10 KM, or
CVM, CFSA.02.00SMS with
SGeRAC
3
2 or 4 nodes for distances up to 100 KM. Requires the
patches, PHCO_38412 and PHKL_38413 or later. Oracle
10gR2 or 11gR1.
Serviceguard/SGeRAC A.11.19 and CVM/CFS 5.0 only.
Supports 2, 4, 6, 8, 10, 12, 14, or 16 nodes for distances
CVM, CFSA.02.01,
A.02.01.01
up to 10 KM, or 2 or 4 nodes for distances up to 100 KM.
Requires the patches, PHCO_38412 and PHKL_38413 or
later. Oracle 10gR2 or 11gR1.
Serviceguard/SGeRAC A.11.19 and CVM/CFS 5.0.1 only.
Supports 2, 4, 6, 8, 10, 12, 14, or 16 nodes for distances
up to 10 KM, or 2 or 4 nodes for distances up to 100 KM.
CVM, CFSA.03.00
Serviceguard/SGeRAC A.11.20 and CVM/CFS 5.0.1 only.
Supports 2, 4, 6, 8, 10, 12, 14, or 16 nodes for distances
up to 10 KM, or 2 or 4 nodes for distances up to 100 KM.
CVM, CFSA.03.01, A.03.02
Serviceguard/SGeRAC A.11.20 and CVM/CFS 5.1 only.
Supports 2, 4, 6, 8, 10, 12, 14, or 16 nodes for distances
up to 10 KM, or 2 or 4 nodes for distances up to 100 KM.
CVM, CFSA.04.00.01,
A.04.01
1
Support for LVM and VxVM in SGeRAC is the same as that provided by the equivalent
Serviceguard revision.
2
Support for LVM and VxVM in SMS is the same as that provided by the version of Serviceguard
contained in the SMS product.
3
Support for LVM, VxVM, and SLVM in SMS is the same as that provided by the versions of
SG/SGeRAC contained in the SMS product.
NOTE: There is a common bundle for Serviceguard, SGeRAC, CVM and CFS together for the
A.04.00.01 and A.04.01 SMS versions. Therefore, SMS with Serviceguard, CVM and CFS without
SGeRAC are not available with A.04.00.01 and A.04.01 SMS versions.
Benefits of Extended Distance Cluster for RAC
• In addition to the benefits of Extended Distance Cluster, RAC runs in active/active mode in
the cluster, so that all resources in both data centers are utilized. The database and data are
synchronized and replicated across two data centers up to 100km apart. In the event of a
site failure, no failover is required because the instance is already running at the remote site.
• Extended Cluster for RAC implements SLVM so that SGeRAC has a “built-in” mechanism for
determining the status of volume group extents in both data centers (that is, the state of the
volume groups is kept in memory at the remote site), and SLVM does not operate on non-current
data. For Veritas environments, Extended Cluster for RAC is also supported with Cluster File
System (CFS)Veritas Cluster Volume Manager (CVM) and .
NOTE: For the most up-to-date support and compatibility information, see the SGeRAC for SLVM,
CVM and CFS Matrix, and the Serviceguard Compatibility and Feature Matrix at http://
www.hp.com/go/hpux-serviceguard-docs.
54 Extended Distance Cluster Configurations