Symantec HP-UX manual Removing a node from a cluster

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Adding and removing a node

Removing a node from a cluster

#haconf —dump -makero

9Put the CVM resources back online, in the following order:

#hagrp -online cvm -sys system01

#hagrp -online cvm -sys system02

#hagrp -online cvm -sys system03

10Check the system status to see whether the new node is online:

#hastatus —sum

-- SYSTEM STATE

 

 

-- System

State

Frozen

A

system01

RUNNING

0

A

system02

RUNNING

0

A

system03

RUNNING

0

-- GROUP STATE

 

 

 

-- Group

System

Probed

AutoDisabled

State

B

cvm

system01

Y

N

ONLINE

B

cvm

system02

Y

N

ONLINE

B

cvm

system03

Y

N

ONLINE

11Add shared disk groups to the cluster configuration:

#cfsdgadm add cfsdg system03=sw

12Create a /mnt on system03 and run the following commands:

#cfsmntadm modify /mnt add system03=rw

Refer to cfsmntadm man page for more details.

13Use cfsmount command to cluster mount /mnt back on all the nodes:

#cfsmount /mnt

Removing a node from a cluster

This section describes how to remove a node from a cluster. As in previous examples, the following removes the system system03 from a three-node cluster. The procedure can be done from any node remaining in the cluster or from a remote host.

To remove a node from a cluster

1Log in as superuser on a node other than system03.

2Stop all the cluster components:

#cfscluster stop -f system03

3Open the VCS configuration for writing:

57

# haconf -makerw

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Contents HP-UX Sfcfs Technical support Licensing and registrationPage Contents Adding a node to a cluster Chapter Upgrading the productInstalling and configuring the product Hardware overview Shared storage Fibre channel switchCluster platforms Software components Packages installed with Sfcfs onlyPackage Contents Optional packages for Sfcfs and Sfcfs HA Packages ContentsPHKL32272 Required HP-UX patchesPHKL32430 HP-UX Patch ID DescriptionRelease Notes PreinstallationProduct licensing Secure communication Setting Path and Manpath environment variablesAlternatively, remove the file /sbin/init.d/vmsa-server Veritas Enterprise AdministratorPrerequisites RequirementsInstalling the product Change directory to /dvdrom If you want to use rsh you must specify on the command lineEnter one or more system names to install Sfcfs Enter 1, 2 or 3 to be installed on all systemsConfiguring the Components Do you want to add another user to the cluster? y,n,q y Summary file Using the log filesInstallation log file Response fileEtc/llttab Verifying the configuration filesLow Latency Transport configuration files Etc/llthostsOutput resembles Checking Low Latency Transport operationLog into system02 # lltstat -p Checking Group Membership and Atomic Broadcast operation Group Membership and Atomic Broadcast configuration filesEtc/gabtab See the hastatus1M manual Output for an Sfcfs HA installation resemblesEnter the following command on any systems Checking cluster operationVerifying the configuration files #System Attribute Value Configuring VCS Verifying agent configurationSynchronizing time on Cluster File Systems Main.cf file Typical VCS configuration file for Sfcfs file resemblesSfcfs HA Only VCS application failover servicesVCS application failover services Upgrading the product Complete the following tasks in advance of upgrading Preparing to upgrade the productPlanning the upgrade Upgrade pathsMP1 Phased upgrade Upgrade OverviewFull upgrade Change to the top-level directory on the disc Upgrading from 3.5 to# hastart Replace it with Remove VRTSwebRun through , , , and on rest of the nodes to be upgraded See the Veritas Cluster Server Installation Guide Run the following command on all the nodes to start VCS Upgrading from 4.1 to Install all the prerequisite patches and reboot the machines Etc/VRTSvcs/conf/config/main.cf file Full upgrade Etc/VRTSvcs/conf/config/main.cf file Upgrading the disk layout versions # umount /mnt1 Upgrading the disk layout versions Adding and removing a node Change to the Sfcfs directory Enter y to install Sfcfs on these systemsEnter the system name of the new node to install Sfcfs Adding a node to a clusterStart VxVM on the system that has been added Enter 1 or 2 to be installed on all systemsWrite the new VCS configuration to disk Configuring Sfcfs and CVM agents on the new nodeRun the following command Open the VCS configuration for writingPut the CVM resources back online, in the following order Add shared disk groups to the cluster configurationCreate a /mnt on system03 and run the following commands Removing a node from a cluster# rm /etc/vxfentab # rm /etc/vxfendg # ./uninstallsfcfs Removing a node from a cluster Enter y to uninstall Sfcfs Enter the system names to uninstall SfcfsUninstalling the product Incorrect permissions for root on remote system Installation issuesInaccessible system Storage Foundation Cluster File System problemsResource temporarily unavailable Mount failures Unmount failuresFollowing error message displays Command failuresPerformance issues If this error message displaysNetwork partition/jeopardy High availability issuesLow memory

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