Using Serviceguard Extension for RAC, 10th Edition, April 2011

Use case 3: Database storage in ASM over SLVM
Figure 15 Use Case 3 Setup
The above diagram can be considered as one use case. Here we have one Oracle Clusterware
MNP, three ASMDG MNP, and four RAC database MNP. All the ASMDG MNPs should be made
dependent on Oracle Clusterware MNP. Disk groups that are exclusively used by a RAC DB should
be managed in separate ASM DG MNP. If different RAC Database uses different ASM Disk groups
then those, ASM DGs should not be configured in a single ASMDG MNP. As RAC DB Instance
MNP 3 and RAC DB Instance MNP 4 use completely different ASM diskgroups, they are made
dependent on their respective ASMDG MNP(ASMDG MNP 2, ASMDG MNP 3). However, If two
RAC DB use same set of ASM Disk groups, then those ASM DG can be configured in a single
ASMDG MNP. Then, both the RAC MNP is made dependent on the ASMDG MNP. RAC DB
Instance MNP 1, RAC DB Instance MNP 2 makes use of same set of ASM diskgroups so both
MNPs are made dependent on ASMDG MNP 1.
How to create a Serviceguard Extension for RAC modular package
In SGeRAC A.11.19, SGeRAC introduces modular package format. With this feature, the user
can use the single SGeRAC package interface to manage SGeRAC Toolkit to simplify Toolkit
management. Please refer to the SGeRAC README for detail.
How Serviceguard Extension for RAC Toolkit maintenance mode works
As of SGeRAC A.11.18, SGeRAC Toolkit supports the maintenance mode, so the user can maintain
Oracle Clusterware and Oracle database instance without halting Oracle Clusterware MNP and
Oracle database instance MNP. Beginning with the SGeRAC A.11.19 patches, PHSS_40885
(11i v2) and PHSS_40886 (11i v3), SGeRAC toolkit also supports the maintenance mode of
ASMDG MNP—the user can maintain ASM DG included in ASMDG MNP without halting the
MNP. The MAINTENANCE_FLAG parameter is specified in the respective toolkit configuration files.
Use Case 1: Performing maintenance with Oracle Clusterware
Oracle Clusterware MNP, ASMDG MNP (if configured) and the Oracle database instance MNP
go into maintenance mode.
90 SGeRAC Toolkit for Oracle RAC 10g or later