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• User Management: How do I authenticate against Kerberos?
  
  Answer: How do I authenticate against Kerberos? How do I authenticate agains Kerberos? For Red Hat based system such as RHEL, CentOS or Scientific Linux: Rather than modifying files ...
  
  
• General: Should I upgrade to a new version? I've got everything running perfectly on my current
  
  Answer: It is important to distinguish between updates and upgrades.   Updates   Package updates are provided through Bright's YUM/Zypper repositories. It is recommended to check for new updates on ...
  
  
• Configuring: How do I authenticate against a NIS server?
  
  Answer: See Robert Stober's howto for now. A validated guide will be here later. ...
  
  
• Cluster Management: CMDaemon won't restart my service like it is supposed to. But I can start the
  
  Answer: Normally CMDaemon restarts a service that fails.   However, one of the possibilities is that CMD has given up due to persistent failure. In the Administrator Manual, ...
  
  
• Software Management: Why do mails flood in after updating my software image?
  
  Answer: Short answer Because there is probably some mail generated in the mail spool in the software image.   When, and on which versions does it happen?   This issue occurs ...
  
  
• Configuring: How do I add a login node?
  
  Answer:   How do I add a login node?   Table of contents   Why have a login node?What do we need to consider for login nodes?1. Make a login image ...
  
  
• Workload Management: How can a PBSPro Server installed externally get recognized by a head node?
  
  Answer: An externally installed PBS Pro server is not visible to Bright Cluster Manager, by default. But this can be made possible, with a few tricks, as ...
  
  
• Workload Management: How do I integrate externally executed UGE/SGE server with Bright Cluster Manager 6.0?
  
  Answer: Mount the $SGE_ROOT directory from your external server that is to be managed by the Bright Cluster Manager (BCM) head node. Make sure that q* ...
  
  
• Cluster Management: When does a node need to be restarted?
  
  Answer: When does a node need to be restarted? Why does a node need to be restarted? Can I ignore it? How do I clear that ...
  
  
• Configuring: How do I customize postfix?
  
  Answer: Short answer: The standard linux way, on the head node only. For Bright Cluster Manager 7 onwards, the relay host can be managed by BCM in ...
  
  
• Node Provisioning: My regular nodes aren't booting up after an update, why? What now?
  
  Answer: Some updates in the software image require recreating the initrd. Bright Cluster Manager is not aware of such updates. As result,  when regular nodes are rebooted, ...
  
  
• Software Management: Why doesn't Bright have a newer version of X?
  
  Answer: I want to use a newer software version Y. Why does Bright only provide version X?   We release with the latest stable versions of third party ...
  
  
• Node Provisioning: How can I flash update all my nodes (from DOS)?
  
  Answer: How can I flash update all my nodes (from DOS)? (For update via Linux, see http://kb.brightcomputing.com/faq/index.php?action=artikel&cat=11&id=105 )   The problem:I have to perform some maintenance on the nodes ...
  
  
• Cluster Management: How do I install the JSON cmgui ?
  
  Answer:   The standalone JSON cmgui, available in Bright 6.0 and upwards, can run on any regular desktop client machine, including on a MacOS desktop. The software ...
  
  
• Initialize And Finalize Scripts: How do I write information out to a hard drive during pre-provisioning?
  
  Answer:   How do I write information out to a hard drive during pre-provisioning?   With a finalize script you write to somewhere under localdrive, which is the root ...
  
  
• Configuring: My stacked switches port designation format doesn't match cmsh/cmgui. What now?
  
  Answer: My stacked switches port designation format doesn't match cmsh/cmgui. How do I record which ports are uplinks?You may have uplink ports that are designated as ...
  
  
• Installing BCM: How do I put a custom disk layout in the head node installer?
  
  Answer: How do I put a custom disk layout in the head node installer?   The head node installer stages are described in the chapter Installing Bright Cluster ...
  
  
• Initialize And Finalize Scripts: How do I handle network interfaces swapping names?
  
  Answer: How do I handle network interfaces swapping names? eth0 keeps changing randomly on boot to eth1 and vice versa. There are two ways to handle this ...
  
  
• Configuring: Why is the Ethernet switch port-based identification not working?
  
  Answer: Why is the Ethernet switch port-based identification not working?IntroductionThe steps below will help you troubleshoot why port-based identification on an Ethernet switch might not be ...
  
  
• Workload Management: Why is my workload manager configuration changed by Bright?
  
  Answer: Why is my workload manager configuration changed by Bright?   Or perhaps:   How do I make configuration changes to the workload manager (WLM) permanent?   If the configuration changes of ...
  
  
• Third Party Software: How do I integrate GPFS 3.x with Bright?
  
  Answer: How do I integrate GPFS with Bright?   GPFS can be integrated with Bright in two ways. Either by mounting a GPFS filesystem on an existing Bright ...
  
  
• Third Party Software: How do I run the HPL test on a Bright Cluster?
  
  Answer: How do I run the HPL test on a Bright Cluster? What is HPL?   Slightly rewording from http://www.netlib.org/benchmark/hpl/:   HPL is a software package that solves a random, dense ...
  
  
• User Management: How do I enable multi-level kerberos and LDAP authentication in cmgui?
  
  Answer:   How do I enable both kerberos and LDAP authentication for cmgui? For Red Hat-based system such as RHEL, CentOS or Scientific Linux:   Configure The Head Node Configure your ...
  
  
• Configuring: How do I add an alias interface?
  
  Answer: How do I add alias interfaces to the regular nodes?     [Background note: IP aliasing allows you to configure multiple IP addresses on one physical interface. This ...
  
  
• Day-to-day Administration: Can I mix Linux distributions on my cluster?
  
  Answer: Can the Bright Cluster Manager (BCM) be used to manage a mix of Linux distributions within the same cluster?Yes.   Introduction   With BCM, multiple, different images can be ...
  
  
• Third Party Software: How can I use the Intel VTune XE with Bright?
  
  Answer: Introduction   Intel's VTune Amplifier is a commercial application for performance analysis on 32 and 64-bit x86 based machines, and has both GUI and command-line interfaces. Basic features ...
  
  
• Third Party Software: How can I login to cmgui with a one-time password?
  
  Answer: How can I authenticate to cmgui with a one-time password?   Introduction:   One time password (OTP) authentication overcomes replay attacks. It allows an administrator to login to a ...
  
  
• User Management: How can I migrate system users to LDAP?
  
  Answer: How can I migrate users and groups from /etc/passwd and /etc/group to Bright's LDAP?   The following steps should be done on the head node.   1. Install the ...
  
  
• General: Why is rsh not working?
  
  Answer: Why does RSH  not work?   Symptoms   - rsh <hostname> <command> results in poll: protocol failure in circuit setup - /var/log/messages contains in.rshd message like “Could not allocate space ...
  
  
• General: How do I change CMDaemon's port?
  
  Answer: CMDaemon by default uses these pair of ports: 8080 and 8081 (for SSL).   To change these ports to other ones, for example: 8084 and 8085 (SSL):   Stop CMDaemon on the headnodes ...
  
  
• Third Party Software: How can I use CUDA MPS with Bright?
  
  Answer: Introduction   CUDA MPS is a feature that allows multiple CUDA processes to share a single GPU context. A CUDA program runs in MPS mode, if the ...
  
  
• Installing BCM: How do I install Bright on Virtual Box?
  
  Answer: How do I install Bright on Virtual Box?   Prerequisite: In order to use PXE booting, the VirtualBox Extension Pack should be installed.   Create a Virtual Machine (VM) for ...
  
  
• Installing BCM: How do I install Bright under VMWare ESXi 5.x?
  
  Answer: How do I install Bright under VMWare ESXi 5.x?   You can follow this guide:   Upload the Bright ISO image into the datastore Host ESXi network configuration Create a virtual ...
  
  
• Installing BCM: How do I install Bright under VMWare Fusion?
  
  Answer: How do I install Bright under VMWare Fusion?     You can follow this guide:   Create a virtual machine for the head node Install a Bright 7.0 head node Install a ...
  
  
• Installing BCM: How do I run Bright under MS Windows Server Hyper-V (Windows Server 2012R2)?
  
  Answer: How do I run Bright under MS Windows Server Hyper-V (Windows Server 2012R2)?   This article walks you through an install of Bright under Microsoft Hyper-V (Windows ...
  
  
• OpenStack: How do I set up Cluster as a Service (CaaS) on Bright OpenStack 7.2?
  
  Answer: Cluster as a Service on Bright OpenStack 7.2         [The following notes explain setting up a clusters as a service in Bright Cluster Manager. This ...
  
  
• Cluster Monitoring: How can I monitor a CoolIT rack with Bright?
  
  Answer: How can I monitor a CoolIT rack with Bright?   CoolIT is a vendor of water-cooled racks that have sensors to monitor the rack. CoolIT racks can ...
  
  
• Third Party Software: How do I use ScaleMP on Bright?
  
  Answer: How can I run ScaleMP on Bright?   This guide describes how to use ScaleMP’s vSMP for Cloud product to create virtual SMP nodes in a cluster. Installing ...
  
  
• OpenStack: How do I set up Cluster as a Service (CaaS) on Bright OpenStack 7.1?
  
  Answer: Cluster as a Service on Bright OpenStack 7.1 [The following notes explain setting up a clusters as a service in Bright Cluster Manager. This means that ...
  
  
• Configuring: How do I install the user portal on a login node from 8.0 onward?
  
  Answer: How to install the user portal on a login node from 8.0 onward The following procedure describes how to install and serve the user portal on ...
  
  
• OpenStack: How do I configure Bright OpenStack 7.2 with Active Directory authentication?
  
  Answer: Bright OpenStack 7.2 with AD authentication   This Knowledge base article describes the steps needed to successfully configure Bright OpenStack 7.2 to use the Active Directory/LDAP backend.   It ...
  
  
• Installing BCM: How do I install Bright Cluster Manager on an SGI ICE X/XA system?
  
  Answer: Installing Bright on an SGI ICE X/XA system involves first installing the "Admin" node using a Bright Cluster Manager ISO. The ISO could be burned to a ...
  
  
• General: How can Nagios be integrated with Bright Cluster Manager?
  
  Answer: Integrating Nagios with Bright Cluster Manager   [This is only valid for Bright 7.2, and not for later versions.] The integration between Nagios and Bright is done via ...
  
  
• Installing BCM: Adding Bright to an existing system doesn't work! What now?
  
  Answer: Adding Bright to an existing system doesn't work! What now?   The manual does discourage using the add-on method. If the prerequisites listed in the manual are ...
  
  
• User Management: How do I change the OU in LDAP?
  
  Answer: How do I change the OU in LDAP for Bright?   This is two step process: 1. Make LDAP use an HDB database instead of an BDB database. 2. ...
  
  
• Configuring: How do I create an InfiniBand subinterface?
  
  Answer: How do I create an IB subinterface?   Subinterfaces divide primary (parent) interfaces to provide traffic isolation. Partition assignments distinguish subinterfaces from parent interfaces. Subinterface creation and ...
  
  
• Configuring: How do I stop nodes from accessing the internet?
  
  Answer: How do I stop nodes from accessing the Internet? By default all compute nodes use the head node as its default gateway, and the head node ...
  
  
• Third Party Software: My program needs Python 3 in order to run. How do I install it?
  
  Answer: Running   yum search cm-python3 (the prefix "cm-" is important) should turn up the Bright Cluster Manager Python 3 package for more recent Bright Cluster Manager software.   A ...
  
  
• Security: Can I use Google Authenticator to connect to my cluster?
  
  Answer: Can I use Google Authenticator to connect to my cluster?     Yes, Google Authenticator can be used to connect to the cluster via SSH and cmgui. Google ...
  
  
• Configuring: How do I install FreeIPA onto a Bright Cluster?
  
  Answer: How do I install FreeIPA onto a Bright Cluster?1. Install packages:# yum -y install ipa-server2. Stop LDAP server:# cmsh -c "device services master; stop ldap"3. ...
  
  

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