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What is Infrastructure as code ?
Infrastructure as code “According to Wikipedia, Infrastructure as Code (IaC) is the process of managing and provisioning computer data centers through machine-readable definition files, rather than physical hardware configuration or interactive configuration tools. The purpose of infrastructure as code is to enable IT teams to automatically manage, monitor, configure, and provision resources rather than doing…
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Difference Between Dedicated Servers & Cloud Servers
Features Dedicated Servers Cloud Servers Cost Factor For dedicated server, we have to pay for a specific range. Here we require expert knowledge and high level resources to manage our server, which is very expensive, and the small firms can not afford to have a dedicated server. If we use a dedicated server for that…
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What is Block Storage ?
Hard drive in a server except the hard drive happens to be installed in a remote chassis. Data is typically stored on device in fixed sized blocks (eg. 512 Bytes). Accessed by operating system as mounted drive volume. Applications / file systems decide how blocks are combined and accessed. Data is stored without any higher-level…
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What is Compartment in Cloud ?
Compartment A compartment is a collection of related resources. It helps us isolate and control access to our resources. Tenancy / Root Compartment Root Compartment can hold all the Cloud Resources. Best Practice is to create dedicated compartments when we need to isolate resources. Point to Note :- Each…
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Oracle Cloud Infrastructure Architecture
Regions Localized geographical areas,comprised of one or more Availability Domain (AD). Availability Domain One or more Fault-tolerant, isolated data center located within the region, but connected to each other by a low latency, high bandwidth network. Availability Domains are isolated from each other, fault tolerant, and very unlikely to fail simultaneously. …
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Cloud Computing
Cloud Computing Defination of Cloud Computing given by NIST. Cloud computing is a model for enabling ubiquitous, convenient, on-demand network access to a shared pool of configurable computing resources (e.g., networks, servers, storage, applications, and services) that can be rapidly provisioned and released with minimal management effort or service provider interaction. This cloud…
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Solved "stack.sh fails creating initial neutron network elements"
+lib/neutron_plugins/services/l3:create_neutron_initial_network:162 die_if_not_set 162 project_id ‘Failure retrieving project_id for demo’ I encountered this error while installing OpenStack using DevStack. The reason was I kept the base memory of CentOS7 virtual machine to 1024 MB. Failure retrieving project_id for demo error can be solved by increasing base memory greater than 2048 MB. It worked for me, I…
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Solve ./stack.sh fails at devstack@etcd.service
While installing OpenStack using Devtsack the following error may occur ./stack.sh fails at devstack@etcd.service. This error mainly occurs with the system which is connected to the DHCP Network. Due to the DHCP Network, the IP Address is dynamically allocated to your system. If ./stack.sh script didn’t execute in one shot and if your IP Address…