Yesterday, I did an APC PCNS installation for 4 unit of VMware vSphere 4 on my customer site and one of the ESX host go wild.
For some reason, I can’t login and the particular ESX host was disconnect for few minutes on vCenter server. Again, the console fly tons of weird error message for few minutes as screen shot below.
click to enlarge.
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VMware VMFS (Virtual Machine File System) is VMware, Inc.’s cluster file system designed for VMware Infrastructure or VMware vSphere. Basically VMFS used to store virtual machine disk images, including snapshots.
According to Wikipedia,
- VMFS version 1 was used by ESX Server v1.x, which is no longer sold. It didn’t feature the cluster filesystem properties and was used only by a single server at a time. VMFS1 is a flat filesystem with no directory structure. — Officially named “VMware File System”
- VMFS version 2 is used by ESX Server v2.x and (in a limited capacity) v3.x. VMFS2 is a flat filesystem with no directory structure. — Officially named “VMware File System”
- VMFS version 3 is used by ESX Server v3.x and vSphere (4.x). As a most noticeable feature, it introduced directory structure in the filesystem. Older versions of ESX Server cannot read or write VMFS3 volumes. Beginning from ESX 3 and VMFS3, virtual machine configuration files are stored in the VMFS partition by default. — Officially named “VMware Virtual Machine File System”
In order to know the exact VMFS version number, see below:
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VMware vSphere 4.1 was release on 13 July 2010 last week. VMware vSphere 4.1 introduced an impressive number of new features and new licensing format.
The following is complete VMware vSphere 4.1 license comparison chart.
click to enlarge.
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To support VLANs for VMware Infrastructure users, the virtual or physical network must tag the Ethernet frames with 802.1Q tags using virtual switch tagging (VST), virtual machine guest tagging (VGT), or external switch tagging (EST). If you’re looking for how to configure VLAN tagging in VMware vSphere, you may refer to VMware KB 1004074 & KB 1004252.
Last week I have configured a VLAN tagging on one of my vSphere 4 Update 2 cluster and due to some reason, I have remove the VLAN ID manually.
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VMware have been released VMware vCenter 4.0 Update 2 & VMware vSphere 4.0 Update 2 on 10 June 2010.
Latest version:
vCenter Server 4.0 Update 2 (Build 258672)
vSphere Client 4.0 Update 2 (Build 258672)
ESX 4.0 Update 2 (Build 261974)
VMware Tools (Build 261974)
What ‘s new about VMware vCenter 4.0 Update 2:
- Guest Operating System Customization Improvements: vCenter Server now supports customization of the following guest operating systems:
- Windows XP Professional SP2 (x64) serviced by Windows Server 2003 SP2
- SLES 11 (x32 and x64)
- SLES 10 SP3 (x32 and x64)
- RHEL 5.5 Server Platform (x32 and x64)
- RHEL 5.4 Server Platform (x32 and x64)
- RHEL 4.8 Server Platform (x32 and 64)
- Debian 5.0 (x32 and x64)
- Debian 5.0 R1 (x32 and x64)
- Debian 5.0 R2 (x32 and x64)
- Resolved Issues:In addition, this release delivers a number of bug fixes that have been documented in theResolved Issues section.
What ‘s new about VMware vSPhere 4.0 Update 2:
- Enablement of Fault Tolerance Functionality for Intel Xeon 56xx Series processors— vSphere 4.0 Update 1 supports the Intel Xeon 56xx Series processors without Fault Tolerance. vSphere 4.0 Update 2 enables Fault Tolerance functionality for the Intel Xeon 56xx Series processors.
- Enablement of Fault Tolerance Functionality for Intel i3/i5 Clarkdale Series and Intel Xeon 34xx Clarkdale Series processors— vSphere 4.0 Update 1 supports the Intel i3/i5 Clarkdale Series and Intel Xeon 34xx Clarkdale Series processors without Fault Tolerance. vSphere 4.0 Update 2 enables Fault Tolerance functionality for the Intel i3/i5 Clarkdale Series and Intel Xeon 34xx Clarkdale Series processors.
- Enablement of IOMMU Functionality for AMD Opteron 61xx and 41xx Series processors— vSphere 4.0 Update 1 supports the AMD Opteron 61xx and 41xx Series processors without input/output memory management unit (IOMMU). vSphere 4.0 Update 2 enables IOMMU functionality for the AMD Opteron 61xx and 41xx Series processors.
- Enhancement of the esxtop/resxtop utility— vSphere 4.0 Update 2 includes an enhancement of the performance monitoring utilities, esxtop and resxtop. The esxtop/resxtop utilities now provide visibility into the performance of NFS datastores in that they display the following statistics for NFS datastores: Reads/s, writes/s, MBreads/s,MBwrtn/s, cmds/s, GAVG/s(guest latency).
- Additional Guest Operating System Support— ESX/ESXi 4.0 Update 2 adds support for Ubuntu 10.04. For a complete list of supported guest operating systems with this release, see the VMware Compatibility Guide.
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