Citrix Systems 4.2 Changing the Service Offering for a VM, CPU and Memory Scaling for Running VMs

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Changing the Service Offering for a VM

6.Make the desired changes to the following:

•Display name: Enter a new display name if you want to change the name of the VM.

•OS Type: Select the desired operating system.

•Group: Enter the group name for the VM.

7.Click Apply.

11.11. Changing the Service Offering for a VM

To upgrade or downgrade the level of compute resources available to a virtual machine, you can change the VM's compute offering.

1.Log in to the CloudPlatform UI as a user or admin.

2.In the left navigation, click Instances.

3.Choose the VM that you want to work with.

4.(Skip this step if you have enabled dynamic VM scaling; see Section 11.11.1, “CPU and Memory Scaling for Running VMs”.)

Click the Stop button to stop the VM.

5.

Click the Change Service button.

The Change service dialog box is displayed.

6.Select the offering you want to apply to the selected VM.

7.Click OK.

11.11.1. CPU and Memory Scaling for Running VMs

(Supported on VMware and XenServer)

It is not always possible to accurately predict the CPU and RAM requirements when you first deploy a VM. You might need to increase these resources at any time during the life of a VM. You can dynamically modify CPU and RAM levels to scale up these resources for a running VM without incurring any downtime.

Dynamic CPU and RAM scaling can be used in the following cases:

•User VMs on hosts running VMware and XenServer.

•System VMs on VMware.

•VMware Tools or XenServer Tools must be installed on the virtual machine.

•The new requested CPU and RAM values must be within the constraints allowed by the hypervisor and the VM operating system.

•New VMs that are created after the installation of CloudPlatform 4.2 can use the dynamic scaling feature. If you are upgrading from a previous version of CloudPlatform, your existing VMs created

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Contents Page Page Getting More Information and Help User Services OverviewConcepts Cloud Infrastructure ConceptsService Offerings Setting Up Networking for UsersSteps to Provisioning Your Cloud Infrastructure Working With Hosts 103 Working With Virtual MachinesWorking With Storage 129 Working with Templates 113Managing Networks and Traffic 147 Working with Usage 141Page Troubleshooting 251 Tuning 249Working with System Virtual Machines 229 System Reliability and High Availability 233Event Types 259 Alerts 261 Additional Documentation Available Getting More Information and HelpCitrix Knowledge Center Contacting Support ChapterPage Concepts What Is CloudPlatform?What Can CloudPlatform Do? Multiple Hypervisor SupportDeployment Architecture Overview Cloud Infrastructure Overview Management Server OverviewMore Information Networking OverviewPage Page Cloud Infrastructure Concepts About RegionsAbout Zones Cloud Infrastructure Concepts About Pods About Clusters About Primary Storage About HostsAbout Physical Networks About Secondary StorageBasic Zone Network Traffic Types Basic Zone Guest IP Addresses Advanced Zone Network Traffic TypesAdvanced Zone Guest IP Addresses System Reserved IP Addresses Advanced Zone Public IP AddressesAll zones A zone that uses advanced networkingPage Accounts, Users, and Domains AccountsHow to Use Dedicated Hosts Dedicating Resources to Accounts and DomainsBehavior of Dedicated Hosts, Clusters, Pods, and Zones Using an Ldap Server for User Authentication Configuring an Ldap ServerAdding an Ldap Server Trust Store Trust Store Password Example Ldap Configuration Commands Removing an Ldap ConfigurationSearch Base Query Filter Active DirectoryApacheDS Search User Bind DN SSL Keystore Path and PasswordPage User Services Overview Page Supported Browsers User InterfaceLog In to the UI End Users UI OverviewLogging In as the Root Administrator Root Administrators UI OverviewUsing SSH Keys for Authentication Changing the Root PasswordCreating an Instance from a Template that Supports SSH Keys Creating the SSH Keypair Output is something similar to what is given belowLogging In Using the SSH Keypair Resetting SSH KeysCreating an Instance Page Configuring Projects Using Projects to Organize Users and ResourcesSetting Up Invitations Overview of ProjectsSetting Project Creator Permissions Setting Resource Limits for ProjectsCreating a New Project Adding Members to a ProjectSending Project Membership Invitations Adding Project Members From the UI Accepting a Membership InvitationSuspending or Deleting a Project Using the Project ViewPage Overview of Provisioning Steps Steps to Provisioning Your Cloud InfrastructureFirst Region The Default Region Adding Regions optionalAdding a Region Adding Third and Subsequent Regions Deleting a Region Adding a Zone Create a Secondary Storage Mount Point for the New ZonePrepare the System VM Template Steps to Add a New Zone Network Offering Description Basic Zone ConfigurationSteps to Provisioning Your Cloud Infrastructure Page Advanced Zone Configuration Page Steps to Provisioning Your Cloud Infrastructure Page NFS Vmfs Adding a PodAdding a Cluster Add Cluster KVM or XenServerAdd Cluster OVM Add Cluster vSphere VMware Cluster Size LimitAdding a vSphere Cluster Steps to Provisioning Your Cloud Infrastructure Page Adding a Host Adding a Host XenServer, KVM, or OVMRequirements for XenServer, KVM, and OVM Hosts Warning KVM Host Additional Requirements Adding a XenServer, KVM, or OVM HostAdding a Host vSphere Adding Primary StorageAdding Secondary Storage Adding an NFS Secondary Staging Store for Each Zone Initialize and Test Steps to Provisioning Your Cloud Infrastructure Service Offerings Compute and Disk Service OfferingsCreating a New Compute Offering Creating a New Disk Offering System Service Offerings Modifying or Deleting a Service OfferingCreating a New System Service Offering For more information, see .7, Stopping and Starting VMs Page Page Overview of Setting Up Networking for Users Setting Up Networking for UsersAbout Virtual Networks Isolated NetworksNetwork Service Providers Support Matrix Network Service ProvidersRuntime Allocation of Virtual Network Resources IndividualACL Support Matrix for an Isolated Network CombinationSupport Matrix for Shared Network Combination Support Matrix for Basic Zone Network OfferingsCreating a New Network Offering Supported Services Description Isolated Shared See Section Remote Access VPN Changing the Network Offering on a Guest Network Creating and Changing a Virtual Router Network Offering Page Page Working With Virtual Machines About Working with Virtual MachinesBest Practices for Virtual Machines Install Required Tools and Drivers VM LifecycleMonitor VMs for Max Capacity Creating a VM from a template Creating VMsCreating a VM from an ISO Configuring Usage of Linked Clones on VMwareAppending a Display Name to the Guest VM’s Internal Name Accessing VMsAssigning VMs to Hosts Stopping and Starting VMsCreating a New Affinity Group Affinity GroupsAssign a New VM to an Affinity Group Change Affinity Group for an Existing VMVirtual Machine Snapshots for VMware View Members of an Affinity GroupDelete an Affinity Group Configuring VM Snapshots Using VM SnapshotsLimitations on VM Snapshots Changing the VM Name, OS, or Group CPU and Memory Scaling for Running VMs Changing the Service Offering for a VMHow to Dynamically Scale CPU and RAM Configuring Dynamic CPU and RAM ScalingUpdating Existing VMs LimitationsMoving VMs Between Hosts Manual Live Migration Resetting the Virtual Machine Root Volume on RebootRecovering a Destroyed VM Deleting VMsWorking with ISOs Adding an ISO Changing a VMs Base Image Attaching an ISO to a VMPage 102 VCenter and Maintenance Mode Scheduled Maintenance and Maintenance Mode for HostsXenServer and Maintenance Mode Working With HostsDisabling and Enabling Zones, Pods, and Clusters To take a server out of Maintenance ModeRemoving Hosts Working With HostsUsing Cisco UCS as Bare Metal Host CloudPlatform Re-Installing HostsMaintaining Hypervisors on Hosts Removing XenServer and KVM HostsAssociating a Profile with a UCS Blade Registering a UCS ManagerDisassociating a Profile from a UCS Blade Changing Host PasswordOver-Provisioning and Service Offering Limits Limitations on Over-Provisioning in XenServer and KVM Setting Over-Provisioning RatiosRequirements for Over-Provisioning Balloon DriverVlan Provisioning Service Offering Limits and Over-ProvisioningAdding Non Contiguous Vlan Ranges Vlan Allocation ExampleAssigning VLANs to Isolated Networks Working with Templates Default TemplateCreating Templates Overview Requirements for TemplatesPrivate and Public Templates Creating a Template from an Existing Virtual MachineWorking with Templates Uploading Templates Creating a Template from a SnapshotWorking with Templates Exporting Templates Creating a Windows TemplateSystem Preparation for Windows Server 2008 R2 Working with Templates Page Working with Templates System Preparation for Windows Server 2003 R2 Importing Amazon Machine Images Create a grub entry in /boot/grub/grub.conf Exit out of chroot Converting a Hyper-V VM to a Template Adding Password Management to Your Templates Linux OS Installation Windows OS InstallationDeleting Templates 128 Working With Storage Storage OverviewPrimary Storage Working With Storage Storage TagsFiber Channel support NFS support Local storage support Storage over-provisioningSecondary Storage Maintenance Mode for Primary StorageBest Practices for Secondary Storage Changing the Secondary Storage IP AddressCreating a New Volume Working With VolumesUsing Local Storage for Data Volumes Changing Secondary Storage ServersTo Create a New Volume Uploading an Existing Volume to a Virtual MachineHypervisor Disk Image Format Attaching a VolumeVM Storage Migration Detaching and Moving VolumesMigrating a VM Root Volume to a New Storage Pool Migrating a Data Volume to a New Storage PoolResizing Volumes Volume Deletion and Garbage Collection Reset VM to New Root Disk on RebootTo enable root disk reset on VM reboot Working with SnapshotsIncremental Snapshots and Backup Volume StatusAutomatic Snapshot Creation and Retention Snapshot Restore VMware Volume Snapshot PerformanceSnapshot Job Throttling Working with Usage Configuring the Usage ServerAlerttypeusagesanityresult = Working with UsageSetting Usage Limits Parameter Name Definition Globally Configured LimitsDefault Account Resource Limits Per-Domain Limits Managing Networks and Traffic Guest TrafficNetworking in a Pod Managing Networks and Traffic Networking in a ZoneBasic Zone Physical Network Configuration Advanced Zone Physical Network ConfigurationConfiguring Isolated Guest Network Configure Public Traffic in an Advanced Zone Configuring a Shared Guest Network About Security Groups Using Security Groups to Control Traffic to VMsSecurity Groups in Advanced Zones KVM Only LimitationEnabling Security Groups Adding a Security GroupAdding Ingress and Egress Rules to a Security Group External Firewalls and Load Balancers MPX About Using a NetScaler Load BalancerVPX Configuring SNMPCommunity String on a Rhel ServerInitial Setup of External Firewalls and Load Balancers Adding a Load Balancer Rule Load Balancer RulesConfiguring AutoScale Prerequisites Configuration Managing Networks and Traffic Updating an AutoScale Configuration Disabling and Enabling an AutoScale ConfigurationSticky Session Policies for Load Balancer Rules Health Checks for Load Balancer RulesRuntime Considerations Global Server Load Balancing About Global Server Load BalancingComponents of Gslb How Gslb Works in CloudPlatform Configuring Gslb For more information, see Configuring a Gslb Virtual Server4 Enabling Gslb in NetScaler Prerequisites and GuidelinesAdding a Gslb Rule Assigning Load Balancing Rules to Gslb Using Multiple Guest Networks Reconfiguring Networks in VMsAdding an Additional Guest Network Prerequisites Selecting the Default NetworkAdding a Network Removing a NetworkGuest IP Ranges Acquiring a New IP AddressReleasing an IP Address Dedicating IP Address Ranges to an Account Reserving Public IP Addresses and VLANs for AccountsDedicating Vlan Ranges to an Account Gateway NetmaskStart IP End IP IP Reservation Considerations IP Reservation in Isolated Guest NetworksConfiguring Multiple IP Addresses on a Single NIC Best PracticesReserving an IP Range Use Cases Port Forwarding and StaticNAT Services ChangesGuidelines Assigning Additional IPs to a VMMultiple Subnets in Shared Network Prerequisites and GuidelinesAdding Multiple Subnets to a Shared Network About Elastic IP Managing Networks and Traffic About Portable IP Portable IPsConfiguring Portable IPs Acquiring a Portable IPGuidelines Static NAT Transferring Portable IPEnabling or Disabling Static NAT Configuring an Egress Firewall Rule IP Forwarding and FirewallingEgress Firewall Rules in an Advanced Zone Configuring the Default Egress Policy AllowDeny Firewall Rules Port Forwarding IP Load BalancingRemote Access VPN Configuring Remote Access VPNDNS and Dhcp Using Remote Access VPN with Windows Setting Up a Site-to-Site VPN Connection Using Remote Access VPN with Mac OSCreating and Updating a VPN Customer Gateway Note See .27, Configuring a Virtual Private CloudManaging Networks and Traffic Page Updating and Removing a VPN Customer Gateway Creating a VPN gateway for the VPCCidr Creating a VPN Connection NoteManaging Networks and Traffic Restarting and Removing a VPN Connection About Private Vlan Isolation in Advanced Zone Using Private VlanPrerequisites Creating a PVLAN-Enabled Guest NetworkAbout Inter-VLAN Routing Page Configuring a Virtual Private Cloud About Virtual Private CloudsMajor Components of a VPC Network Architecture in a VPC Connectivity Options for a VPCVPC Network Considerations Adding a Virtual Private Cloud Adding Tiers Managing Networks and Traffic Configuring Network Access Control List About Network ACL ListsCreating ACL Lists Creating an ACL Rule Assigning a Custom ACL List to a Tier Creating a Tier with Custom ACL ListAdding a Private Gateway to a VPC See .27.5.2, ACL on Private Gateway Source NAT on Private GatewayCreating a Static Route ACL on Private GatewayDeploying VMs to the Tier Deploying VMs to VPC Tier and Shared NetworksBlacklisting Routes Acquiring a New IP Address for a VPC Releasing an IP Address Alloted to a VPC Enabling or Disabling Static NAT on a VPC Load Balancing Public Traffic Public LB Adding Load Balancing Rules on a VPCCreating a Network Offering for Public LB Creating a Public LB Rule How Does Internal LB Work in VPC? Load Balancing Tier-to-Tier traffic Internal LBEnabling Internal LB on a VPC Tier Creating an Internal LB Rule Adding a Port Forwarding Rule on a VPC TCP UDP Removing TiersPersistent Networks Editing, Restarting, and Removing a Virtual Private CloudPersistent Network Considerations Creating a Persistent Guest Network System VM Template Working with System Virtual MachinesMultiple System VM Support for VMware Console ProxyWorking with System Virtual Machines Changing the Console Proxy SSL Certificate and DomainVirtual Router Configuring the Virtual RouterUpgrading a Virtual Router with System Service Offerings Secondary Storage VMBest Practices for Virtual Routers System Reliability and High Availability HA-Enabled Virtual MachinesHA for Management Server Dedicated HA HostsPrimary Storage Outage and Data Loss Configuring the API Request RateSecondary Storage Outage and Data Loss Limiting the Rate of API RequestsLimitations on API Throttling 236 Managing the Cloud Using Tags to Organize Resources in the CloudSetting Configuration Parameters About Configuration ParametersManaging the Cloud Setting Local Configuration Parameters Setting Global Configuration ParametersGranular Global Configuration Parameters Cluster.cpu.allocated.capacity.disablThethr Administrator Alerts Changing the Database ConfigurationCustomizing Alerts with Global Configuration Settings Sending Alerts to External Snmp and Syslog ManagersSnmp Alert Details Syslog Alert Details Configuring Snmp and Syslog ManagersDeleting an Snmp or Syslog Manager Customizing the Network Domain NameStopping and Restarting the Management Server CloudPlatform API Provisioning and Authentication APIAllocators User Data and Meta DataCloudPlatform API Performance Monitoring TuningIncrease Management Server Maximum Memory Set Database Buffer Pool SizeConfigure XenServer dom0 Memory TuningSet and Monitor Total VM Limits per Host Events TroubleshootingEvent Logs Event NotificationTroubleshooting Standard EventsLong Running Job Events Deleting and Archiving Events and Alerts Event Log QueriesProcedure Working with Server LogsPermissions Symptom Using cloud-bugtoolLog Collection Utility cloud-bugtool Data Loss on Exported Primary StorageMaintenance mode not working on vCenter Recovering a Lost Virtual RouterSolution CauseUnable to deploy VMs from uploaded vSphere template Unable to power on virtual machine on VMwareLoad balancer rules fail after changing network offering Appendix A. Event Types 260 Appendix B. Alerts Appendix B. Alerts
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4.2 specifications

Citrix Systems, a leading provider of virtualization solutions and cloud computing technologies, released version 4.2 of its popular software, Citrix XenApp, which was previously known as Presentation Server. This version marked a significant evolution in providing users with remote access to applications and desktops, emphasizing simplicity, performance, and security.

One of the standout features of Citrix XenApp 4.2 is its improved application streaming capabilities. This technology allows applications to be delivered to users in real-time, reducing the need for extensive local installations and enhancing the user experience. With application streaming, administrators can efficiently manage applications on a central server while ensuring that users have immediate access to the necessary tools.

Another highlight of this version is the enhanced security measures put in place to protect sensitive data. Citrix XenApp 4.2 includes support for SSL encryption, providing a secure communication channel for data transmitted between the server and clients. This is particularly crucial for businesses that need to comply with strict data protection regulations. Additionally, the integration of endpoint security features ensures that unauthorized access to applications is minimized.

Performance enhancements are also a critical focus in this release. Citrix optimized the delivery of applications over various network conditions, ensuring that users experience minimal latency regardless of their location. This was achieved through the incorporation of SmartAccess and SmartControl technologies, which allow administrators to set policies based on user roles, device types, and network conditions. This level of granularity enables organization-wide security without compromising on usability.

The user experience was further improved with a revamped interface, making it easier for end-users to access their applications and data. Simplified menus, clear navigation paths, and the ability to customize user settings contributed to a more efficient workflow, allowing users to focus on their tasks rather than struggling with the software.

Finally, Citrix XenApp 4.2 was designed to be highly scalable. Organizations of all sizes could deploy this solution to deliver applications efficiently, adapting to their specific needs as their user base grows or changes. This flexibility is crucial for businesses looking to future-proof their IT investments while maintaining optimal performance.

In summary, Citrix XenApp 4.2 stands out with its enhanced application streaming, robust security features, improved performance under varying conditions, user-friendly interface, and scalability, making it an ideal choice for organizations seeking to leverage virtualization for remote access to applications and desktops.
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