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Nov 05 2014

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Memory tuning of VMware vCenter Server Appliance (VCSA)

When you deploy a VMware vCenter Server Appliance it comes configured with a standard of 8 GB Memory. For a lot of smaller environments this is too much and you can re-configure the JVM heap size for the vCenter Server processes and therefore consume less memory.

List Configured Memory

ssh to your vcsa server

login with the root account

execute command: vpxd-servicecfg jvm-max-heap read

The output gives you three values:

VC_MAX_HEAP_SIZE_QS

== Indicates the amount of RAM configured for the Query Service (inventory service)

VC_MAX_HEAP_SIZE_SPS

== Indicates the amount of RAM configured for the Policy Based Storage Management (storage profile service)

VC_MAX_HEAP_SIZE_TOMCAT

==> Indicates the amount of RAM configured for Tomcat (vSphere Web Client Service)

VC_CFG_RESULT = 0

==> Indicates that the vpxd-servicecfg command was successful

Change Configured Memory

ssh to your VCSA server

login with the root account

 

Reconfigure memory for Tomcat (vSphere Web Client Service)

Edit usr/lib/vmware-vsphere-client/server/wrapper/conf/wrapper.conf

Change the value for wrapper.java.maxmemory to 1024 (default = 2048)

Reconfigure memory for the Query Service (Inventory Service)

Edit /usr/lib/vmware-vpx/inventoryservice/wrapper/conf/wrapper.conf

Change the value for wrapper.java.maxmemory to 1536 (default = 3072)

Reconfigure memory for the Policy Based Storage Management (Storage Profile Service)

Edit /usr/lib/vmware-vpx/sps/wrapper/conf/wrapper.conf

Change the value for wrapper.java.maxmemory to 512 (default =1024)

Shut down the virtual machine where teh vCenter Server Appliance is installed

Reconfigure the VM to 4 GB RAM

Reboot the Virtual machine

 

See also VMware KB 2005086 and article Arthur Krzywdzinski

Permanent link to this article: http://ituda.com/memory-tuning-of-vmware-vcenter-server-appliance-vcsa/

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