La commande 'lscomg' permet d'afficher un certain nombre d'informations sur les domaines de communication :
# lscomg
Name Sensitivity Period Priority Broadcast SourceRouting NIMPathName NIMParameters Grace MediaType UseForNodeMembership
CG2 4 0.8 1 Yes Yes 60 1 (IP) 1
CG3 4 0.8 1 Yes Yes 60 1 (IP) 1
CG4 4 0.8 1 Yes Yes 60 1 (IP) 1
CG1 4 0.8 1 Yes Yes 60 1 (IP) 1
ou
#
# lscomg -i CG1
Name NodeName IPAddress Subnet SubnetMask
en100 se1-tst 10.26.99.164 10.26.96.0 255.255.240.0
en100 se2-tst 10.26.99.165 10.26.96.0 255.255.240.0
en100 se3-tst 10.26.99.162 10.26.96.0 255.255.240.0
en100 se4-tst 10.26.99.163 10.26.96.0 255.255.240.0
en100 se5-tst 10.26.99.161 10.26.96.0 255.255.240.0
en100 se6-tst 10.26.99.160 10.26.96.0 255.255.240.0
lscomg Command
Purpose
Displays information about the communication groups of a peer domain.
Syntax
lscomg [-l -t -d -D delimiter] [-x] [-i] [-h] [-TV] [communication_group]
Description
The lscomg command displays information about the communication groups that are defined to the online peer domain
on which the command runs. If you specify the name of a communication group, the lscomg command displays
information about that communication group only.
Some of the communication group information that is displayed follows:
Field
Description
Name
The name of the communication group
Sensitivity
The number of missed heartbeats that constitute a failure
Period
The number of seconds between heartbeats
Priority
The relative priority of the communication group
Broadcast
Indicates whether broadcast should be used if it is supported by the underlying media
SourceRouting
Indicates whether source routing should be used if it is supported by the underlying media
NIMPath
The path to the Network Interface Module (NIM) that supports the adapter types in the communication group
NIMParameters
The NIM start parameters
Interface resources
Use the -i flag to display information about the interface resources that refer to communication_group.
For IP communication groups (MediaType = 1), lscomg -i displays the following information:
Field
Description
Name
The name of the interface resource that refers to communication_group.
NodeName
The host name of the interface resource that refers to communication_group.
IPAddress
The IP address of the interface resource that refers to communication_group.
SubnetMask
The subnet mask of the interface resource that refers to communication_group.
Subnet
The subnet of the interface resource that refers to communication_group
For disk heartbeating (MediaType = 2) and other non-IP types of communication groups (MediaType = 0), lscomg -i
displays the following information:
Field
Description
Name
The name of the interface resource that refers to communication_group.
NodeName
The host name of the interface resource that refers to communication_group.
DeviceInfo
Information about the device.
MediaType
The type of interfaces that make up this communication group.
Flags
-l
Displays the information on separate lines (long format).
-t
Displays the information in separate columns (table format). This is the default format.
-d
Displays the information using delimiters. The default delimiter is a colon (:). Use the -D flag if you want
to change the default delimiter.
-D delimiter
Displays the information using the specified delimiter. Use this flag to specify a delimiter other than the
default colon (:) when the information you want to display contains colons, for example. You can use this
flag to specify a delimiter of one or more characters.
-x
Excludes the header (suppresses header printing).
-i
Displays information about the interface resource that refers to communication_group.
-h
Writes the command's usage statement to standard output.
-T
Writes the command's trace messages to standard error. For your software service organization's use only.
-V
Writes the command's verbose messages to standard output.
Parameters
communication_group
Specifies the name of the communication group about which you want to display information. You can specify a
communication group name or a substring of a communication group name for this parameter. If you specify a
substring, the command displays information about any defined communication group with a name that contains
the substring.
Security
The user of the lscomg command needs read permission for the IBM.CommunicationGroup resource class. Read
permission for the IBM.NetworkInterface resource class is required to display the network interface information.
By default, root on any node in the peer domain has read and write access to these resource classes through the
configuration resource manager.
Exit Status
0
The command ran successfully.
1
An error occurred with RMC.
2
An error occurred with a command-line interface script.
3
An incorrect flag was entered on the command line.
4
An incorrect parameter was entered on the command line.
5
An error occurred that was based on incorrect command-line input.
6
The communication group definition does not exist.
Environment Variables
CT_CONTACT
Determines the system where the session with the resource monitoring and control (RMC) daemon occurs. When
CT_CONTACT is set to a host name or IP address, the command contacts the RMC daemon on the specified host.
If CT_CONTACT is not set, the command contacts the RMC daemon on the local system where the command is being
run. The target of the RMC daemon session and the management scope determine the resource classes or
resources that are processed.
CT_IP_AUTHENT
When the CT_IP_AUTHENT environment variable exists, the RMC daemon uses IP-based network authentication to
contact the RMC daemon on the system that is specified by the IP address to which the CT_CONTACT environment
variable is set. CT_IP_AUTHENT only has meaning if CT_CONTACT is set to an IP address; it does not rely on
the domain name system (DNS) service.
Restrictions
This command must be run on a node that is defined and online to the peer domain on which the communication group
exists.
Implementation Specifics
This command is part of the Reliable Scalable Cluster Technology (RSCT) fileset for AIX .
Standard Input
When the -f "-" or -F "-" flag is specified, this command reads one or more node names from standard input.
Standard Output
When the -h flag is specified, this command's usage statement is written to standard output. All verbose messages
are written to standard output.
Standard Error
All trace messages are written to standard error.
Examples
In these examples, nodeA is defined and online to peer domain ApplDomain.
1 To display general information about the communication groups for ApplDomain, run this command on nodeA:
lscomg
The following output is displayed:
Name Sensitivity Period Priority Broadcast SourceRouting NIMPath NIMParameters
ComG1 2 2 1 no yes /usr/sbin/rsct/bin/hats_nim -l 5
2 To display information about the interface resources that refer to the communication group ComGrp1 for the
peer domain ApplDomain, run this command on nodeA:
lscomg -i ComGrp1
The following output is displayed:
Name NodeName IPAddr SubnetMask Subnet
eth0 n24 9.234.32.45 255.255.255.2 9.235.345.34
eth0 n25 9.234.32.46 255.255.255.2 9.235.345.34
Location
/usr/sbin/rsct/bin/lscomg
