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sys_attrs_clubase(5)
NAME
sys_attrs_clubase - clubase subsystem attributes
DESCRIPTION
This reference page lists and describes attributes for the cluster base
(clubase) kernel subsystem. Refer to the sys_attrs(5) reference page for an
introduction to the topic of kernel subsystem attributes.
name
Returns a string representing the susbystem name (Cluster base
component).
Supported operations: Query
cluster_version
String representing the installed version of TruCluster Server; for
example, TruCluster Server X5.1A-2 (Rev. 267); 10/06/00 04:48
Supported operations: Query
cluster_name
Name of the cluster. The cluster installation procedure prompts for
this information sets this attribute.
Supported operations: Query; Configure at boot time
cluster_maj_version
TruCluster Server major version number. For example, the major version
of Version 5.1A is 5.
Supported operations: Query
cluster_min_version
TruCluster Server minor version number. For example, the minor version
of Version 5.1A is 1.
Supported operations: Query
cluster_node_name
Host name of this cluster member. The cluster installation procedure
sets this attribute.
Supported operations: Query; Configure at boot time
cluster_node_inter_name
IP name associated with this member's cluster interconnect interface.
The cluster installation procedure prompts for this information and
sets this attribute.
Supported operations: Query; Configure at boot time
cluster_node_votes
Number of votes this member contributes towards quorum. The connection
manager uses this value to determine cluster expected votes and cluster
quorum votes. The cluster installation procedure prompts for this
information sets this attribute. You can use the clu_quorum command to
adjust a member's votes.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Minimum value: 0
Maximum value: 2147483647
cluster_expected_votes
Total number of votes expected in the cluster when all members are up.
The connection manager uses the initial value of this attribute to
derive an estimate of the correct value for cluster quorum votes. The
cluster installation procedure and the clu_quorum command set this
attribute.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Minimum value: 0
Maximum value: 2147483647
cluster_qdisk_major
Major device number of the h partition on the quorum disk. The cluster
installation procedure and the clu_quorum command set this attribute.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Minimum value: 0
Maximum value: 4294967295
cluster_qdisk_minor
Minor device number of the h partition on the quorum disk. The cluster
installation procedure and the clu_quorum command set this attribute.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Minimum value: 0
Maximum value: 4294967295
cluster_qdisk_votes
Number of votes the quorum disk contributes towards quorum. The
connection manager uses this value to determine cluster expected votes
and cluster quorum votes. The cluster installation procedure and the
clu_quorum command set this attribute.
Supported operations: Query; Configure at boot time; Reconfigure at run
time
Minimum value: 0
Maximum value: 2147483647
cluster_seqdisk_major
Major device number of the h partition on this member's boot disk. The
cluster installation procedure sets this attribute.
Supported operations: Query; Configure at boot time
Minimum value: 0
Maximum value: 4294967295
cluster_seqdisk_minor
Minor device number of the h partition on this member's boot disk. The
cluster installation procedure sets this attribute.
Supported operations: Query; Configure at boot time
Minimum value: 0
Maximum value: 4294967295
cluster_announce_rate
Number of times per second this member announces to the cluster that it
is alive.
Supported operations: Query; Configure at boot time
Default value: 4
Minimum value: 0
Maximum value: 18446744073709551615
cluster_form_delay
Number of seconds the member waits, before proceeding to form a
cluster, to see if there is an existing cluster for it to join.
Supported operations: Query; Configure at boot time
Default value: 10
Minimum value: 0
Maximum value: 18446744073709551615
cluster_dlm_dirwt
Distributed lock manager (DLM) directory vector weight value. Setting
the directory weight value increases the likelihood that this member
will be the director of a resource managed by the DLM. This attribute
is set to the value of the dlm_dirwt attribute of the dlm kernel
subsystem.
Supported operations: Query; Configure at boot time
Default value: 1
Minimum value: 0
Maximum value: 4
cluster_kch_dirwt
Kernel group services (KCH) directory vector weight value. This
attribute is set to the value of the kch_dirwt attribute of the kch
kernel subsystem.
Supported operations: Query; Configure at boot time
Default value: 1
Minimum value: 0
Maximum value: 4
cluster_interconnect
Interconnect type to be used for cluster internode communications.
Currently allowed values are tcp (LAN-based interconnect) and mct
(Memory Channel).
Supported operations: Query; Configure at boot time
cluster_rebuild_delay
The time (in seconds) that the members of a cluster with quorum allow
between the occurrence of a communication failure and the initiation of
a rebuild of cluster state (for example, the Distributed Lock Manager
database) following the removal of a cluster member that has been
presumed failed. This delay ensures that the removed member has had
sufficient time to recognize the communication failure and realize that
it no longer has quorum and can no longer perform I/O.
This attribute contributes to how aggressively cluster members attempt
to detect communication failures by influencing the value of timers,
such as the keep-alive timers used in a LAN interconnect configuration.
A lower value results in faster failure detection and cluster failover
at the risk of unnecessarily marking a cluster member as down. A higher
value results in slower failure detection and cluster failover with a
decreased likelihood of unnecessarily marking a cluster member as down.
Supported operations: Query; Configure at boot time
Default value: 240
Minimum value: 0
Maximum value: 18446744073709551615
SEE ALSO
sys_attrs(5), clu_quorum(8)
TruCluster Server Cluster Installation
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Index for
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