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XenServer 5.0 ‐ How Citrix Leverages Open Source XenXenServer 5.0 ‐ How Citrix Leverages Open Source Xen
Citrix Systems JapanCitrix Systems Japan
2© 2008 Citrix Systems, Inc. — All rights reserved
Comparing Xen Open Source to XenServer
•Xen hypervisor is the core virtualization engine for both the open source and XenServer products
•Is supports paravirtualization and hardware virtualization assistance. Both products offer stable, tested components
•Differences between Xen open source and XenServer include:• Xen open source code includes unstable or untested components
• Citrix XenServer products are rigorously tested and include polished features for heavy production use
• Citrix adds proprietary enterprise‐level software to the Xen hypervisor
3© 2008 Citrix Systems, Inc. — All rights reserved
Comparing Xen PlatformsXenServer
• Citrix XenServer Enterprise Edition 4.1 supports the 64‐bit hypervisor version
• Citrix Xe
• nServer supports the following CPU and memory limits:
• 32 CPU cores
• 128 GB RAM
• 75% of the code is proprietary which makes XenServer easy to use. Installation usually takes less than 10 minutes
Xen Open Source
• Xen supports the following hypervisor versions:
• 32‐bit
• 32‐bit‐PAE
• 64‐bit
• Xen has the following theoretical memory and CPU limits:
• Terabytes of memory
• 128 CPU cores
• Xen requires Linux experience to install. Installation usually takes one day to install
4© 2008 Citrix Systems, Inc. — All rights reserved
Xen Community
stable, tested
not tested
unstableQuality Assuranceand Enterprise Level
Testing
Automated Regression
Manual Regression
Optimization
Alpha/Beta Testing
Citrix
stable, testedproprietary software
FixesFixes
vs. XenServer
5© 2008 Citrix Systems, Inc. — All rights reserved
XenServer 5Virtualization for every server in the Datacenter
•Open, flexible platform• Supports all Tier 1 enterprise apps via Oracle and Microsoft Virtualization Validation Programs
• Supports virtually every Windows and Linux guest OS and storage architecture/device ‐ DAS, NAS, SAN (iSCSI and FC)
• Business Continuity• Enterprise‐class Automated High Availability & Disaster Recovery, Fault Tolerant with Marathon
everRUN
• XenMotion relocates live workloads to new servers with zero downtime
• Bulletproof, scalable virtualization architecture
•Workload Visibility• XenCenter console provides visibility on every server and workload
• Unique virtual machine tagging and searching capability
• Persistent and historical monitoring tracks workload performance
• Virtual Storage Infrastructure• Expanded Storage Array support for native snapshotting, cloning, replication, backup
• Application Storage Resource Management – automates connecting and configuring storage resources within virtual environments
6© 2008 Citrix Systems, Inc. — All rights reserved
XenServer 5 Virtualization for every server in the Datacenter
•Dynamic Workload Provisioning• Dynamically deliver workloads to any server
• Stream workloads to both physical or virtual servers
• Boot ‘000s of VMs from a single VHD – huge storage savings
• High Performance• Thin, fast 64‐bit Xen hypervisor provides near bare‐metal performance
• Windows and Linux support in both 64‐bit and 32‐bit modes
• Optimized for XenApp workload consolidation
• Easy Setup and Admin• Fast, easy installation in less than 10 minutes
• Intuitive XenCenter graphical interface
• Available built‐in on HP and Dell servers
• Easy configuration and maintenance means lower total cost
7© 2008 Citrix Systems, Inc. — All rights reserved
XenServer 5 Core Scenarios
•Server consolidation• Simplest, fastest implementation from pilot to production
•Mixed environments•One hypervisor for both Windows and Linux
•XenDesktop desktop virtualization• Integrated solution with storage integration
•XenApp consolidation• Tuned for highest performance
8© 2008 Citrix Systems, Inc. — All rights reserved