VMware vSphere 4.1

What's New in VMware vSphere 4.1

DRS Interoperability for VMware HA & Fault Tolerance (FT) - FT-enabled virtual machines can take advantage of DRS functionality for load balancing & initial placement. VMware HA & DRS are more tightly integrated, which allows VMware HA to restart virtual machines in more situations & provide optimal VM restart placement.

http://vmware.com/pdf/vsphere4/r41/vsp_41_availability.pdf
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Log files using Syslog

Centralization of log files using Syslog requires UDP port 514 to be open between the ESX(i) host & the Syslog server. Open a Syslog port in the ESX firewall with the following command:
esxcfg-firewall -o 514,udp,out,"syslog". Syslog is configured on ESX in /etc/syslog.conf

There's no firewall in ESXi.

Splunk is a popular Syslog server solution. Also look at Simon Long's use of vMA for Syslog http://bit.ly/bds96h
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Running ESXTOP

Running ESXTOP in replay mode:

1. Capture statistics using vm-support in snapshot mode using the command:
vm-support -S -d duration -i interval
2. Unzip & untar the resulting tar file so that esxtop can use it in replay mode
3. To run esxtop in replay mode, enter the command:
esxtop -R [vm-support_directory_path]
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HA cluster

The first 5 nodes in an HA cluster are primary nodes. Remaining nodes are secondary. Primary nodes maintain all node states & this information is synchronized with other primary nodes. Secondary nodes send heartbeats to primary nodes only.
To find out which hosts in the cluster are primary & which are secondary, run the following command in the Service Console:

cat /var/log/vmware/aam/aam_config_util_listprimaries.log
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New in VMware vSphere 4.1

What's New in VMware vSphere 4.1

Network I/O Control - Traffic-management controls allow flexible partitioning of physical NIC bandwidth between different traffic types, including virtual machine, vMotion, FT, and IP storage traffic (vNetwork Distributed Switch only).

http://bit.ly/bNrQRZ
http://bit.ly/9a2NoE
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Access to VMware Tools

Disable access to VMware Tools in the Windows system tray (doesn't restrict access thru Control Panel) 1) Go to c:\Program Files\VMware\VMware Tools\ 2) Apply Deny permission for Read & Execute, & Read for the users on file VMControlPanel.cpl 3) Right click on the VMware Tools system tray icon and choose disable 4) Run regedit & delete the VMware Tools key in HKLM\Software\Microsoft\Windows\CurrentVersion\Run
KB1006354
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Access to VMware Tools

Disable access to VMware Tools in the Windows system tray (doesn't restrict access thru Control Panel) 1) Go to c:\Program Files\VMware\VMware Tools\ 2) Apply Deny permission for Read & Execute, & Read for the users on file VMControlPanel.cpl 3) Right click on the VMware Tools system tray icon and choose disable 4) Run regedit & delete the VMware Tools key in HKLM\Software\Microsoft\Windows\CurrentVersion\Run
KB1006354
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