sys_attrs_clubase(5)sys_attrs_clubase(5)NAMEsys_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.
Returns a string representing the susbystem name (Cluster base
component).
Supported operations: Query
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
Name of the cluster. The cluster installation procedure prompts
for this information sets this attribute.
Supported operations: Query; Configure at boot time
TruCluster Server major version number. For example, the major
version of Version 5.1A is 5.
Supported operations: Query
TruCluster Server minor version number. For example, the minor
version of Version 5.1A is 1.
Supported operations: Query
Host name of this cluster member. The cluster installation pro‐
cedure sets this attribute.
Supported operations: Query; Configure at boot time
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
Number of votes this member contributes towards quorum. The con‐
nection manager uses this value to determine cluster expected
votes and cluster quorum votes. The cluster installation proce‐
dure 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
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
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
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
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 proce‐
dure 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
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
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
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
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
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
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
Interconnect type to be used for cluster internode communica‐
tions. Currently allowed values are tcp (LAN-based interconnect)
and mct (Memory Channel).
Supported operations: Query; Configure at boot time
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 Dis‐
tributed Lock Manager database) following the removal of a clus‐
ter 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 unneces‐
sarily 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. Setting the value too low creates the potential for
failure of a member to be able to join a cluster or for a clus‐
ter member to be removed, because of a perceived communication
failure, during times of heavy load.
Supported operations: Query; Configure at boot time
Default value: 240
Minimum value: 25
Maximum value: 18446744073709551615
SEE ALSOsys_attrs(5), clu_quorum(8)
TruCluster Server Cluster Installation
sys_attrs_clubase(5)
