Building Disaster Recovery Serviceguard Solutions Using Metrocluster with Continuous Access for P9000 and XP A.11.00

data center does not support Asynchronous mode of data
replication. Leave this parameter with its default value in all
data centers.
AUTO_SVOLPSUS (Default = 0)
This parameter applies when the PVOL and SVOL both have
the state of suspended (PSUS). The problem with this situation
is we cannot determine the earlier state: COPY or PAIR. If
the earlier state was PAIR, it is completely safe to startup
the package at the remote site. If the earlier state was COPY,
the data at the SVOL site is likely to be inconsistent.
Values:
0—(Default) Do NOT startup the package at the secondary
site. Require user intervention to either fix the problem by
resynchronizing the PVOL and SVOL or force the package
to start on this node by creating the FORCEFLAG file.
1 – Startup the package after making the SVOL writable.
The risk of using this option is the SVOL data might be
inconsistent and the application might fail. However, there
is also a chance that the data is actually consistent, and it
is okay to startup the application.
If the package has been configured for a three data center
environment, this parameter is applicable only when the
package is attempting to start up in either the primary (DC1)
or secondary (DC2) data center. This parameter is not
relevant in (the third data center) in the recovery cluster. Use
this parameter’s default value in the third data center.
CLUSTER_TYPE This parameter defines the clustering environment in which
the script is used. Must be set to “metro” if this is a
Metrocluster environment and “continental” if this is a
Continentalclusters environment. A type of “metro” is
supported only when the HP Metrocluster product is installed.
A type of “continental” is supported only when the HP
Continentalclusters product is installed.
If the package is configured for three data centers (3DC),
the value of this parameter must be set to “metro” for DC1
and DC2 nodes and “continental” for DC3 nodes.
DEVICE_GROUP The Raid Manager device group for this package. This
device group is defined in the /etc/horcm<#>.conf file.
This parameter is not required to be set for a package
configured for three data centers environment. Device groups
for three data center's packages have new parameters.
3DC_TOPOLOGY This parameter is the differentiator between packages
configured for two data centers (2DC) and three data centers
(3DC). Unlike packages configured for two data centers
(2DC), this parameter must be set for a package configured
for a three data center environment.
This parameter can has the following values:
• multi-hop-Bi-Link: (DEFAULT) When the package is
configured for 1:1:1, or cascaded, or multi hop
topology with two Continuous Access links. The sync
Continuous Access link, is between DC1 and DC2 and
the other link, the journaling Continuous Access link,
is between DC2 and DC3. There is no physical
Continuous Access link present between DC1 and DC3
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