Symantec HP-UX Checking Low Latency Transport operation, Output resembles, Log into system02

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Installing and configuring the product

Verifying the configuration files

Checking Low Latency Transport operation

Use the lltstat command to verify that links are active for LLT. This command returns information about the links for LLT for the system on which it is typed. See the lltstat(1M) manual page.

In the following example, lltstat -nis typed on each system in the cluster.

To check LLT operation

1Log into system01.

#lltstat -n

Output resembles:

LLT

node information:

 

 

Node

 

State

Links

* 0

system01

OPEN

2

1

system02

OPEN

2

2Log into system02.

#lltstat -n

Output resembles:

LLT

node information:

 

 

Node

 

State

Links

0

system01

OPEN

2

* 1

system02

OPEN

2

Note: Each system has two links and that each system is in the OPEN state. An asterisk (*) denotes the system on which the command is typed.

With LLT configured correctly, the output of lltstat -nshows all of the systems in the cluster and two links for each system. If the output shows otherwise, you can use the verbose option of lltstat. For example, type lltstat -nvv more on a system to view additional information about LLT. In the following example, lltstat -nvv more is typed on a system in a two-node cluster.

3Log into system01.

#lltstat -nvv more

Output resembles:

Node

State

Link

Status

Address

*0 system01 OPEN

lan1

UP

08:00:20:93:0E:34

 

 

lan2

UP

08:00:20:93:0E:34

1 system02

OPEN

lan1

UP

08:00:20:8F:D1:F2

 

 

lan2

DOWN

08:00:20:8F:D1:F2

2

CONNWAIT

 

 

 

 

 

lan1

DOWN

 

 

 

lan2

DOWN

 

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Contents HP-UX Sfcfs Licensing and registration Technical supportPage Contents Chapter Upgrading the product Adding a node to a clusterInstalling and configuring the product Hardware overview Fibre channel switch Shared storageCluster platforms Packages installed with Sfcfs only Software componentsPackage Contents Packages Contents Optional packages for Sfcfs and Sfcfs HARequired HP-UX patches PHKL32272HP-UX Patch ID Description PHKL32430Preinstallation Release NotesProduct licensing Setting Path and Manpath environment variables Secure communicationVeritas Enterprise Administrator PrerequisitesRequirements Alternatively, remove the file /sbin/init.d/vmsa-serverInstalling the product If you want to use rsh you must specify on the command line Enter one or more system names to install SfcfsEnter 1, 2 or 3 to be installed on all systems Change directory to /dvdromConfiguring the Components Do you want to add another user to the cluster? y,n,q y Using the log files Installation log fileResponse file Summary fileVerifying the configuration files Low Latency Transport configuration filesEtc/llthosts Etc/llttabChecking Low Latency Transport operation Output resemblesLog into system02 # lltstat -p Group Membership and Atomic Broadcast configuration files Checking Group Membership and Atomic Broadcast operationEtc/gabtab Output for an Sfcfs HA installation resembles Enter the following command on any systemsChecking cluster operation See the hastatus1M manualVerifying the configuration files #System Attribute Value Verifying agent configuration Configuring VCSSynchronizing time on Cluster File Systems Typical VCS configuration file for Sfcfs file resembles Main.cf fileVCS application failover services Sfcfs HA OnlyVCS application failover services Upgrading the product Preparing to upgrade the product Planning the upgradeUpgrade paths Complete the following tasks in advance of upgradingMP1 Upgrade Overview Phased upgradeFull upgrade Upgrading from 3.5 to Change to the top-level directory on the disc# hastart Remove VRTSweb Replace it withRun 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 Enter y to install Sfcfs on these systems Enter the system name of the new node to install SfcfsAdding a node to a cluster Change to the Sfcfs directoryEnter 1 or 2 to be installed on all systems Start VxVM on the system that has been addedConfiguring Sfcfs and CVM agents on the new node Run the following commandOpen the VCS configuration for writing Write the new VCS configuration to diskAdd shared disk groups to the cluster configuration Create a /mnt on system03 and run the following commandsRemoving a node from a cluster Put the CVM resources back online, in the following order# rm /etc/vxfentab # rm /etc/vxfendg # ./uninstallsfcfs Removing a node from a cluster Enter the system names to uninstall Sfcfs Enter y to uninstall SfcfsUninstalling the product Installation issues Incorrect permissions for root on remote systemStorage Foundation Cluster File System problems Inaccessible systemResource temporarily unavailable Unmount failures Mount failuresCommand failures Performance issuesIf this error message displays Following error message displaysHigh availability issues Network partition/jeopardyLow memory

HP-UX specifications

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