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When we want to develop a program by using any programming language, we have to follow a sequence of steps. These steps are called phases in program development.The program development life cycle is a set of steps or phases which are used to develop a program in any programming language.Phases of program developmentProgram development life cycle contains 6 phases, which are as follows −Problem Definition.Problem Analysis.Algorithm Development.Coding & Documentation.Testing & Debugging.Maintenance.These six phases are depicted in the diagram given below −Problem DefinitionHere, we define the problem statement and decide the boundaries of the problem.In this phase, we need to understand ... Read More
The major differences between an array and a structure in C programming language are as follows −ArraysStructuresAn array is a single entity representing a collection of data items of same data types.A structure is a single entity representing a collection of data items of different data types.Individual entries in an array are called elements.Individual entries in a structure are called members.An array declaration reserves enough memory space for its elements.The structure definition reserves enough memory space for its members.There is no keyword to represent arrays but the square braces [] preceding the variable name tells us that we are dealing ... Read More
There are two ways to retrieve the availability set tags. Using the Tags property inside the availability tag and the second by using the Get-AzTag command.Before running this command make sure that you are connected to the Azure Cloud (if not use ConnectAzAccount) and proper azure subscription (Set-AzContext to set the Azure subscription).First, we will get the availability set properties and retrieve the tag property as shown below.$availablityset = Get-AzAvailabilitySet -ResourceGroupName MYRESOURCEGROUPAVAILABILITY -Name myAvailabilitySet $availablityset.TagsOutputTo get the tags using resource ID, we need to retrieve the resource ID using the Get-AvailabilitySet command.$availablityset = Get-AzAvailabilitySet -ResourceGroupName MYRESOURCEGROUPAVAILABILITY -Name myAvailabilitySet Get-AzTag ... Read More
To get the Azure VM sizes available for the availability set, we can use the Get-AzVMSize command with the availability set name. Before running this command make sure that you are connected to the Azure Cloud (if not use Connect-AzAccount) and proper azure subscription (Set-AzContext to set the Azure subscription)Get-AzVMSize ` -ResourceGroupName MYRESOURCEGROUPAVAILABILITY ` -AvailabilitySetName myAvailabilitySetHere the Resource Group name is MyResourceGroupAvailability and the Availability set name is MyAvailabiltyset.Output
There are two types of disks available in the Availability Set.Aligned − for the managed disks.Classic − for the unmanaged disks.To get the disk types of the availability set, we first need to retrieve availability set information and then we need to retrieve the SKU property which stores the disk typesBefore running this command make sure that you are connected to the Azure Cloud (if not use ConnectAzAccount) and proper azure subscription (Set-AzContext to set the Azure subscription)To get the availability set information, $availablityset = Get-AzAvailabilitySet -ResourceGroupName MYRESOURCEGROUPAVAILABILITY -Name myAvailabilitySet if($availablityset.Sku -eq "Aligned"){"Managed disk"} else{"Unmanaged disk"}OutputRead More
Virtual machines inside the Availability set get the update automatically, they reboot together and they are used for the patching of the virtual machines.To get the update domain count from the availability set, we can use the below command.Before running this command make sure that you are connected to the Azure Cloud (if not use ConnectAzAccount) and proper azure subscription (Set-AzContext to set the Azure subscription)To get the availability set,$availablityset = Get-AzAvailabilitySet -ResourceGroupName Resourcegroupname -Name AvailabilitySetNameTo get the update domain count,$availablityset.PlatformUpdateDomainCountOutput
To list the Azure VMs under the availability set, we can use the command as shown belowBefore running the command make sure that you are connected to the Azure Cloud (if not use ConnectAzAccount) and proper azure subscription (Set-AzContext to set the Azure subscription)$availabilitySetVMs = Get-AzAvailabilitySet -ResourceGroupName MYRESOURCEGROUPAVAILABILITY -Name myAvailabilitySetTo get the total number of Virtual machines in the availability set, PS C:\> $availabilitySetVMs.VirtualMachinesReferences.id.countOutputTo get all the VM names from the list, we can use the below command.$VMlist = Get-AzAvailabilitySet -ResourceGroupName MYRESOURCEGROUPAVAILABILITY -Name myAvailabilitySet $i=0 foreach($vm in $VMlist.VirtualMachinesReferences){ "VM{0}: {1}" -f $i, ($vm.Id.Split('/'))[-1] $i++ }OutputRead More
The fault domain in the Azure Availability set describes the VMs in the availability set that share the common Power, Storage, network switch, etc. If there is a failure in the fault domain then all the resources in the fault domain will become unavailable.Before running the command make sure that you are connected to the Azure Cloud (if not use ConnectAzAccount) and proper azure subscription (Set-AzContext to set the Azure subscription)$availablityset = Get-AzAvailabilitySet -ResourceGroupName ResourceGroupName -Name AvailabilitySetNameTo get the Fault domain countm$availablityset.PlatformFaultDomainCountOutput
To open the specific port for the Azure VM using Azure CLI, we can use az vm open-port command. Before running this command, make sure that you are connected with the Azure Cloud account and the proper Azure subscription.To open port 80 we can use the below command.az vm open-port -n Win2k16VM1 -g testvmrg --port 80The above command will open port 80 on the VM win2k16vm1 and the resource group testvmrg.To open the port with the highest priority, you can add the --priority parameteraz vm open-port -n Win2k16VM1 -g testvmrg --port 80 --priority 100To open the port range, az vm open-port ... Read More
To resize the Azure VM using az CLI, we can use “az vm resize” command. Before running this command, make sure you are connected to the Azure cloud and the proper Azure subscription.To get the current size of the VM, PS C:\> az vm show -n Win2k16VM1 -g testvmrg --query 'hardwareProfile.vmSize'Output"Standard_B2ms"Here, -n is the VM name, and -g is the resource group name.To get the VM location, PS C:\> az vm show -n Win2k16VM1 -g testvmrg --query 'location'Output"eastus" We will now get all the sizes available at the particular location so that we can resize the VM from the sizes ... Read More