Building Disaster Recovery Serviceguard Solutions Using Continentalclusters A.08.00

If there are three packages with data on a particular Symmetrix pair (connected by SRDF),
then the values for RETRY and RETRYTIME might be as follows:
Table 8 RETRY and RETRYTIME Values
RETRYTIMERETRY
5 seconds60 attemptspkgA
7 seconds43 attemptspkgB
9 seconds33 attemptspkgC
f. Uncomment the CLUSTER_TYPE variable and set it to “continental”.
g. Uncomment the RDF_MODE and set it to “async” or “sync” as appropriate to your
application.
7. Distribute Metrocluster/Continuous Access configuration, environment and control script files
to other nodes in the cluster by using ftp, rcp or scp:
# rcp -p /etc/cmcluster/pkgname/* \
other_node:/etc/cmcluster/pkgname
When using ftp, be sure to make the file executable on any destination systems. This script
assumes the package directories already exist on all the nodes.
Using ftp might be preferable at your organization, because it does not require the use of a
.rhosts file for root.
Root access via .rhosts might create a security issue.
8. Verify that every node in the Serviceguard cluster has the following files in the directory
/etc/cmcluster/pkgname:
pkgname.cntl Serviceguard package control script
pkgname_srdf.env Metrocluster EMC SRDF environment file
pkgname.ascii Serviceguard package ASCII configuration file
pkgname.sh Package monitor shell script, if applicable
other files Any other scripts you use to manage Serviceguard packages.
9. Validate the configuration using the cmcheckconf -P <pkgname>.config command,
then apply the Serviceguard package configuration using the cmapplyconf -P
<pkgname>.config command
Configuring storage devices for complex workload
Configuring the storage device for the complex workload at the Source Disk Site
using SG SMS CFS or CVM
To configure a storage device using SG SMS CFS or CVM in a legacy style package:
1. Initialize the source disks of the replication pair
# /etc/vx/bin/vxdisksetup -i <replicated_disk_1>
# /etc/vx/bin/vxdisksetup -i <replicated_disk_2>
2. Create a disk group for the complex workload data.
# vxdg –s init <cvm_dg_name> <replicated_disk_1>\
<replicated_disk_2>
3. Create Serviceguard Disk Group MNP packages for the disk groups with a unique name in
the cluster.
# cfsdgadm add <cvm_dg_name><cvm_dg_pkg_name> all=sw\
<node1><node2>
Configuring storage devices for complex workload 111