Today I received some warnings at my new installed vSphere 5.5 hosts, the warning message:
Configuration issues. "Quick stats on hostname is not up-to-date"

Solution:
This is a known issue in vCenter Server 5.5.
To work around this issue, add these quickStats parameters to the Advanced Settings of the vCenter Server:
- vpxd.quickStats.HostStatsCheck
- vpxd.quickStats.ConfigIssues
Note: Adding these parameters to the vCenter Server will not affect future upgrades.
To add the quickStats parameters to the Advanced Settings of the vCenter Server:
- In the vSphere Web Client, navigate to the vCenter Server instance.
- Select the Manage tab.
- Select Settings > Advanced Settings.
- Click Edit.
- In the Key field, enter this key: vpxd.quickStats.HostStatsCheck
- In the Value field, enter: False
- Click Add.
- In the Key field, enter this key: vpxd.quickStats.ConfigIssues
- In the Value field, enter: False
- . Click Add.
- . Click OK.
- . Restart the vCenter Server service.
More information: VMware
Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.
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The settings that NetApp recommends (across all ESX hosts) are:
– NFS.HeartbeatFrequency(NFS.HeartbeatDelta in vSphere) = 12
– NFS.HeartbeatTimeout = 5 (default)
– NFS.HeartbeatMaxFailures = 10
When the number of NFS datastores are increased, we also recommend increasing the heap values:
– Net.TcpipHeapSize =>’30’ to Net.TcpipHeapMax => ‘120’
To automate this configuration I’ve wrote a PowerCLI script:
#====================================================================#
# SCRIPT: Configure_Advanced_NFS_parameters.ps1 #
# FUNCTION: Configure NFS / NetApp best practice #
# OWNER: Sander Daems #
# VENDOR: NetApp / FAS2040 #
# VSPHERE: 5.0 Update 1 build 623860 #
# CREATED: 07/01/2013 #
# MODIFIED: 20/03/2013 #
# VERSION: v.1.1 #
#====================================================================#
# CHANGELOG: #
# #
# v.1.0 #
# - Created script; #
# #
#====================================================================#
# HOST - Specify host and connect #
#====================================================================#
$ESXiHost = Read-Host "Enter ESXi Host name or IP"
Connect-VIServer $ESXiHost
#====================================================================#
# ADVANCED - Update TCP Settings #
#====================================================================#
Set-VMHostAdvancedConfiguration -VMHost $ESXiHost -Name Net.TcpipHeapSize -Value 32
Set-VMHostAdvancedConfiguration -VMHost $ESXiHost -Name Net.TcpipHeapMax -Value 128
#====================================================================#
# ADVANCED - Update NFS Settings #
#====================================================================#
Set-VMHostAdvancedConfiguration -VMHost $ESXiHost -Name NFS.MaxVolumes -Value 256
Set-VMHostAdvancedConfiguration -VMHost $ESXiHost -Name NFS.HeartbeatMaxFailures -Value 10
Set-VMHostAdvancedConfiguration -VMHost $ESXiHost -Name NFS.HeartbeatFrequency -Value 12
Set-VMHostAdvancedConfiguration -VMHost $ESXiHost -Name NFS.HeartbeatTimeout -Value 5
#====================================================================#
# SCRIPT FINISHED #
#====================================================================#
Write-Host "Script finished..." -foregroundcolor yellow
#====================================================================#
More information / source: NetApp Whitepaper
More information / source: VMware KB , VMware KB, VMware KB
Sander Daems is founder and author of this blog and working as a Lead (Sr.) Consultant by UNICA ICT Solutions. Sander has over 15 years experience in IT, primary focus: virtualization and modern worksplace.
More Posts - Website
Follow Me:


Categories: VMware Tags: Advanced Parameters, Datastore, FAS2040, HeapSize, Heartbeat, NetApp, NFS, PowerCLI, TCP, VMware, vSphere 5
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