dmesg

Find out what hardware devices were discovered during the ESX boot process with the Service Console command:

dmesg
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vCenter Server service

The vCenter Server service can fail to start because of a lack of transaction log space. To commit and shrink the transaction logs, execute the following query in SQL Management Studio on the vCenter database:

BACKUP LOG vc WITH TRUNCATE_ONLY
DBCC SHRINKFILE(vc_log,2)

Where vc is the trans log file you want to process.

http://kb.vmware.com/kb/1003979
http://kb.vmware.com/kb/1003980
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vCenter Server 4.x installation

During the installation of VMware vCenter Server 4.x, the NETWORK SERVICE account must have READ NTFS permissions at the root of the installation drive letter or else the installation of the local ADAM instance will fail and the entire installation process will roll back.

http://kb.vmware.com/kb/1010938
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Snapshots

Snapshots do not grow to infinity. Snapshots are a delta bitmap of the parent .vmdk file. Snapshots grow in 16MB increments (by default) up to a maximum size equal to the size of the parent disk. An update to an existing sector in the snapshot will be overwritten; it's not a continuous append or transaction log which grows forever.
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Backing up virtual infrastructure

Use a "one-two punch" approach to backing up your virtual infrastructure by implementing both file level and image level (.vmdk) backups. File level backups will facilitate the day to day restore requests. Image level backups offer rapid recovery options in disaster recovery scenario. The best backup products available will offer both types of protection. Some packages employ both methods of protection simultaneously.
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New in VMware vSphere 4.1

What's New in VMware vSphere 4.1

Storage Performance Statistics - Offers enhanced visibility into storage throughput & latency of hosts & virtual machines, & aids in troubleshooting storage performance issues. NFS statistics are now available in vCenter Server performance charts, as well as in esxtop. New VMDK & datastore statistics are included. All statistics are available through the vSphere SDK.

http://bit.ly/9q9HW8
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Thinstall

On this day in 2008, VMware announced the acquisition of Thinstall. The Thinstall product is rebranded as ThinApp and VMware released ThinApp 4.0 on 6/27/08. ThinApp creates portable applications that can be leveraged across a variety of operating systems (Windows XP, Vista, 7, NT, 2000, 2003, 2008, 2008 R2) and plug into a variety of deployment infrastructures (SMS, LANDesk, Citrix, BMC, and others)
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