SUNW.sap_livecache(5) (Sun Cluster Data Services Reference Manual for Solaris OS)

Sun Cluster Data Services Reference Manual for Solaris OS

SUNW.sap_livecache(5)

NAME | Description | Examples | Attributes | See Also

NAME

SUNW.sap_livecache, sap_livecache – resource type implementation for failover SAP liveCache database

Description

The SAP liveCache data service is managed by the Sun Cluster Resource Group Manager (RGM) and is configured as a LogicalHostname resource, a SAP liveCache database resource.

The SAP liveCache database depends on the SAP xserver which is managed by data service SUNW.sap_xserver. Dependency should be set between the SAP liveCache resource group and the SAP xserver resource group.

You must set the following properties for a SAP liveCache database resource using the clresource(1CL) command.

Standard Properties

See r_properties(5) for a description of the following resource properties.

Retry_count

Default: 2

Tunable: Any time

Retry_interval

Default: 620

Tunable: Any time

Thorough_probe_interval

Default: 60

Tunable: Any time

Extension Properties

Monitor_retry_count

Type integer; default is 4. This property controls the restarts of the fault monitor. It indicates the number of times the fault monitor is restarted by the process monitor facility and corresponds to the -n option passed to the pmfadm(1M) command. The number of restarts is counted in a specified time window (see the property Monitor_retry_interval). Note that this property refers to the restarts of the fault monitor itself, not SAP liveCache. SAP liveCache restarts are controlled by the system-defined properties Thorough_Probe_Interval, Retry_Interval, and Retry_Count, as specified in their descriptions. You can modify the value for this property at any time.

Monitor_retry_interval

Type integer, default is 2. Indicates the time in minutes over which the failures of the fault monitor are counted and corresponds to the -t option passed to the pmfadm(1M) command. If the number of times the fault monitor fails exceeds the value of Monitor_retry_count within this period, the fault monitor is not restarted by the process monitor facility. You can modify the value for this property at any time.

Probe_timeout

Type integer; default is 90. Indicates the time-out value (in seconds) used by the fault monitor to probe a SAP liveCache database instance. You can modify the value for this property at any time.

Failover_enabled

Type boolean; defaults to TRUE. Indicates whether to failover or not when retry_count is exceeded during retry_interval.

Livecache_Name

Type string array. This property is the name of the liveCache database instance. Note the name is in uppercase (LC-NAME).

Confdir_list

Type string array.This property only has one value which is the directory for livecache software and instance directories

Default is /sapdb.

Examples

Example 1 Configuration Example

For this example to work, you must first install the data service.

The following example creates a failover SAP liveCache database resource named lc-rs in an existing resource group called lc-rg. lc-rg must contain a LogicalHostName resource.

# clresourcetype register SUNW.sap_livecache 
# clresource create -g lc-rg -t SUNW.sap_livecache \\
-p LiveCache_Name=LC4 lc-rs

In this example, LC4 is the SAP liveCache database instance name. The rest of the extension properties use the default values.

After the SAP liveCache database resource group and the SAP xserver resource group are created, set the dependency between them.

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE	ATTRIBUTE VALUE
Availability	SUNWsclc