Managing Serviceguard Extension for SAP on Linux (IA64 Integrity and x86_64), April 2009

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100

Installation Step: IS1100

For

SAP computing change into the profile directory by typing the alias:

cdpro

In the DEFAULT.PFL change the following entries and replace the hostname with the relocatible name if

you cluster a (ci) component. For example:

SAPDBHOST = <relocdb>

rdisp/mshost = <relocci>

rdisp/sna_gateway = <relocci>

rdisp/vbname = <relocci>_<SID>_<instnr>

rdisp/btcname = <relocci>_<SID>_<instnr>

rslg/collect_daemon/host = <relocci>

If you don't have Replicated Enqueue:

rdisp/enqname = <relocci>_<SID>_<instnr>

The following parameters are only necessary if an application server is installed on the adoptive node. For

example:

rslg/send_daemon/listen port

rslg/collect_daemon/listen port

rslg/collect_daemon/talk port

Optional Step: IS1110

If you want to use the DB-Reconnect functionality for

ABAP

Instances:

Add entries to:

▲ Instance Profiles of all application servers that use DB-Reconnect

When configuring the DBRECONNECT feature follow the appropriate OSS notes 109036, 98051 and

24806.

For example:

rsdb/reco_trials = 15

rsdb/reco_sleep_time = 60

rsdb/reco_sosw_for_db = off(based on OSS #109036)

rsdb/reco_sync_all_server = on

Installation Step: IS1120

In the instance profile of each clustered

ABAP

instance, two values have to be added to specify the virtual

addressing,

Fr example in <SID>_DVEBMGS<INSTNR>:

SAPLOCALHOST = <relocci>

SAPLOCALHOSTFULL = <relocci>.<domain>

The parameter SAPLOCALHOSTFULL must be set even if you do not use DNS. In this case you should set it

to the name without the domain name:

SAPLOCALHOSTFULL=<relocci>

The instance profile name is often extended by the hostname. You do not need to change this filename to

include the relocatible hostname. Serviceguard Extension for SAP on Linux also supports the full instance

virtualization of SAPWAS 6.40 and beyond. The startsap mechanism can then be called by specifying

the instance's virtual IP address. For this case, it is required to use the virtual IP addressing in the filenames

of the instance profile and instance start profile. All references to the instance profiles that occur in the start

profile need to be changed to include the virtual IP address instance profile filename.

SAPLOCALHOST is set to the hostname per default at startup time and is used to build the SAP application

server name:

98 Step-by-Step Cluster Conversion