VMware CLOUD DIRECTOR 1.0 Manual de usuario Pagina 30

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PERFORMANCE STUDY /30
VMware vCloud Director 1.0 Performance and Best Practices
Conclusion
In this paper, we discuss some of the features of the vCloud Director 1.0 release, performance characterizations
including latency breakdown, latency trends, resource consumption, sizing guidelines and hardware
requirements, and performance tuning tips. The following are some of the vCloud Director best practices for
performance presented in the paper:
Ensure the inventory cache size is big enough to hold all inventory objects.
Ensure the JVM heap size is big enough to satisfy the memory requirement for the inventory cache and
memory burst so the vCloud Director server does not run out of memory.
Import LDAP users by groups instead of importing individual users one by one.
Ensure the system is not running LDAP sync too frequently. The vCloud database is updated at regular
intervals.
In order to help load balance disk I/O, separate the storage location for OVF uploads from the location of
vCloud Director server logs.
Have a central datastore to hold the most popular vApp templates and media files and have this datastore
mounted to at least one ESX host per cluster.
Be aware that the latency to deploy a vApp in fence mode has a static cost and does not increase
proportionately with the number of VMs in the vApp.
Deploy multiple vApps concurrently to achieve high throughput.
For load balancing purposes, it is possible to move a VC Listener to another vCloud Director instance by
reconnecting the vCenter Server through the vCloud Director user interface.
References
[1] Open Virtualization Format Specification
http://www.dmtf.org/standards/published_documents/DSP0243_1.0.0.pdf
[2] Open Virtualization Format White Paper
http://www.dmtf.org/standards/published_documents/DSP2017_1.0.0.pdf
[3] WANem Simulator Web site
http://wanem.sourceforge.net/
[4] VMware vCenter 4.0 Configuration Limits
http://www.vmware.com/pdf/vsphere4/r40/vsp_40_config_max.pdf
[5] VMware vCenter 4.1 Configuration Limits
http://www.vmware.com/pdf/vsphere4/r41/vsp_41_config_max.pdf
[6] VMware vCenter 4.1 Performance and Best Practice
http://www.vmware.com/files/pdf/techpaper/vsp_41_perf_VC_Best_Practices.pdf
[7] vCloud API Programming Guide
http://www.vmware.com/pdf/vcd_10_api_guide.pdf
[8] vCloud Director 1.0 Release Note
http://www.vmware.com/support/vcd/doc/rel_notes_vcloud_director_10.html
[9] Changing vCloud Director Java heap size to prevent java.lang.OutOfMemoryError messages
http://kb.vmware.com/kb/1026355
[10] vCloud Director Installation and Configuration Guide
http://www.vmware.com/pdf/vcd_10_install.pdf
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