Issue relating to Veritas Dynamic Multi-Pathing 6.0 for VMware ESX

Workaround: The user should manually remove the DMP directory and its contents before re-installation.

Issue relating to VMware ESX limitation

Issue: VMware ESX supports a maximum of 256 LUNs per server. With Veritas Dynamic Multi-Pathing (DMP) in a VMware environment, there may be unexpected results if the VMware limit is exceeded.  The following VMware documents describe the VMware ESX maximums.

http://www.vmware.com/pdf/vsphere4/r41/vsp_41_config_max.pdf

http://www.vmware.com/pdf/vsphere5/r51/vsphere-51-configuration-maximums.pdf

 Workaround:  The user should adhere to the VMware ESX limits.

Issue relating to Veritas Dynamic Multi-Pathing 6.0.1 for VMware ESX

Issue: DMP for VMware 6.0.1 issues with ESX 5.0 Update 1

On VMware ESX systems running ESX 5.0 Update 1 releases prior to Build 768111, administrators may experience slow performance from the VMware CIM (Common Information Model). As a result of the CIM performance issue, DMP for VMware may display error messages similar to the following:

Error:
Could not find any DMP managed host in the datacenter.

Please verify the following:
- The VxDMP components are installed, and running on all the ESX and ESXi hosts of the selected datacenter.
- The ESX and ESXi hosts of the selected datacenter are up and running.
- Supported storage is connected to all VxDMP components installed ESX or ESXi hosts of selected datacenter.
- User has the vCenter Server privilege 'CIM interaction'.

For more information on this message, click V-5-8-5

Additionally, the DMP for VMware GUI may respond slowly when you perform operations or display statistics through the VMware vCenter DMP for VMware tab or through the DMP on ESX command line. Each CIM call may take up to 10 seconds to respond. Some statistics operations and configuration require a series of CIM commands to be executed, which emphasizes the delay and performance issue.
 
Resolution:

To resolve the issue, apply Build 768111 or later for VMware ESX 5.0 Update 1, which is available from VMware.  After installation, you must reboot the ESX server.  To determine the version and build of ESX currently installed, select the ESX host within vCenter. The version and update level display in the upper left corner.

For the latest patches available for this release, go to:  sort.symantec.com/patch/matrix

For the updated documentation for this release, go to:   sort.symantec.com/documents