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WPAR
WPAR (Workload Partition)Workload Partitions (WPARs) are virtualized operating system environments that are created within a single AIX image. WPAR has its own private execution environment with its...
View ArticleDHCP (Dynamic Host Configuration Protocol)
DHCP (Dynamic Host Configuration Protocol)Ā DHCP allows to get an IP address and other network parameters, like gateway, DNS server IP, subnet mask etc. (It is a client - server setup.)The DHCP facility...
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Syntax recommendations in general:- DonŹ¼t forget commas and colons. (Forgetting them causes parsing errors.)- The resource type and the attribute names should always be lowercase.- The values used for...
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ResourcesWhen we write puppet code in a manifest file, we want to modify resources on the server. A resource can be anything which is possible to configure on a system, like a user account, a specific...
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ClassA class is a code block in Puppet, which can be created in one place and invoked elsewhere. Using classes allows to reuse Puppet code.Ā Defining a class makes it available by name, but doesnŹ¼t...
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PuppetPuppet is a configuration management tool, which automates the configuration of servers. Puppet follows client-server model (Puppet Agents are connected to a Puppet Master), and agents are...
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FacterIn Puppet, facter is a standalone tool that holds the environment level variables. In can be considered similar to env variable. In Puppet, the key-value pair is known as āfactā.Ā We can list...
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HieraHiera is a "Hierarchical Database" to store values for variables (key/value pair). It provides to Puppet a separation between the code and the data. With Hiera it is possible to write Puppet code,...
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RSCT (Reliable Scalable Cluster Technology)RSCTĀ (as its name says) is a sort of Cluster Technology. It comes with AIX by default (no additional installation is needed) and it consists of several...
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NFSPowerHA provides highly available NFS services, which allows the backup NFS server to recover the current NFS activity if the primary NFS server fails. This feature is available only for two-node...
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Resource, Resource GroupĀ Resources: File systems, service IPs, applications... which are highly available (These can be moved from one node to another.)Resource Group (RG): Those resources which are...
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SMUI (System Mirror User Interface)PowerHA V7.2 includes a browser-based GUI to monitor cluster environments, which is called PowerHA SMUI.SMUI provides following functions:- Monitors the status for...
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PowerVC Upgrade/InstallBasically these are the same, the same install script is used for both.0. BackupĀ - vmware snapshot1. Red Hat update if needed (for PowerVC 1.4.4 minimum RHEL 7.7. is needed):...
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HMC Install, ConfigHMC network types:HMC has 2 different networks:- private network: for accessing/managing Power servers through the FSP- open network: this network used for user logins, and each LPAR...
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VIO Install, Config (VIO Build)These main steps will be followed:- VIO Server creation on HMC- VIO Server installation- VIO Server configuration- Network configuration (SEA, VLANs)- Performance Tuning-...
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QEMU - AIX on x86QEMU (Quick EMUlator) is a machine emulator program, which is capable to create VMs with different processor architectures. For example if we want to test a Solaris (with RISC...
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SSP AdministrationPowerVC and SSPSSP is a fully supported storage provider in PowerVC. SSP was developed much earlier than PowerVC, but its shared setup can fit very well to the cloud nature of...
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YUM (Yellowdog Updater Modified)https://public.dhe.ibm.com/aix/freeSoftware/aixtoolbox/ezinstall/ppc/README-yumYUM is package manager for RPM packages, which allows automatic updates, package and...
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Red Hat - Netboot and Install from NIM serverA NIM server can boot up and install AIX servers from network using TFTP, BOOTP protocols. As other operating systems are using these same protocols for...
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Git BasicsThe purpose of Git is to keep track of the changes, which have been made on files. In more official wording: Git is a distributed version control system. Version Control System can be any...
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