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vExpert 2016 Applications are Open

The VMware vExpert program is VMware’s global evangelism and advocacy program. The program is designed to put VMware’s marketing resources towards your advocacy efforts. Promotion of your articles, exposure at our global events, co-op advertising, traffic analysis, and early access to beta programs and VMware’s roadmap. Each year, we bring together in the vExpert Program … Continue reading “vExpert 2016 Applications are Open”

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VMware Security Hardening Guides

Security Hardening Guides provide prescriptive guidance for customers on how to deploy and operate VMware products in a secure manner. Guides for vSphere are provided in an easy to consume spreadsheet format, with rich metadata to allow for guideline classification and risk assessment. They also include script examples for enabling security automation. Comparison documents are … Continue reading “VMware Security Hardening Guides”

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vMotion operation fails with the error, “The VM failed to resume on the destination during early power on”.

I had an interesting issue to resolve today, one that I haven’t seen before and one that took a bit of digging to resolve. The problem related to migrating some Exchange mailbox servers from a legacy ESXi 4.1 host onto new ESXi 5.1 host. This should have been a simple vMotion operation, but the task … Continue reading “vMotion operation fails with the error, “The VM failed to resume on the destination during early power on”.”

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Intel microcode issue affecting E5-2600 v2 series processors

We recently experienced a number of recurring, unexpected restarts of guest VM’s, all Windows 2008 R2 servers running MSSQL Server 2008. These VM’s were all hosted on ESXi 5.0.0 build-1489271 (update 3). All hosts in the cluster are relatively new HP DL380p Gen 8 servers, with two Intel Xeon E5-2667 v2 processors @3.3GHz. My first … Continue reading “Intel microcode issue affecting E5-2600 v2 series processors”

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Creating custom SATP claimrules for EMC Symmetrix

As part of my migration work to EMC storage I need to create a custom SATP rule on each of my vSphere 5.0 hosts. The two obvious options are using ESXCLI from a SSH session to each host, or using PowerShell where ESXCLI is exposed using the Get-EsxCli cmdlet. The PowerShell option suits me better … Continue reading “Creating custom SATP claimrules for EMC Symmetrix”

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EMC Symmetrix VMAX 40K testing on vSphere 5.0

We are in the process of migrating from HDS to EMC storage and I have been testing our Symmetrix VMAX 40K on vSphere 5.0. This has been an interesting journey and has highlighted that although similar concepts (ie. block storage with FC connectivity), storage arrays differ and need careful implementation if you want to get … Continue reading “EMC Symmetrix VMAX 40K testing on vSphere 5.0”

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Update NTP configuration on multiple ESXi 5.0 hosts

We recently upgraded our NTP infrastructure and I had to reconfigure 46x ESXi 5.0 hosts to reflect this change. I’m not keen on doing these types of operations manually so I wrote this script to automate the process. I’m sure there are definitely more elegant scripts available, but this one works perfectly well. Just change … Continue reading “Update NTP configuration on multiple ESXi 5.0 hosts”

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RVTools Version 3.6, FREE download

RVTools has been publicly available since 2008, and the latest version is now available for FREE download – thanks Rob de Veij, awesome work! Version 3.6 (February, 2014) New tabpage with cluster information New tabpage with multipath information On vInfo tabpage new fields HA Isolation response and HA restart priority On vInfo tabpage new fields … Continue reading “RVTools Version 3.6, FREE download”

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PSOD : LINT1 motherboard interrupt

I had a Dell R815 host crash yesterday, with the following PSOD error message; The system has found a problem on your machine and cannot continue. LINT1 motherboard interrupt. This is a hardware problem; please contact your hardware vendor. When I checked the system logs on the iDRAC, I could see a bus fatal error … Continue reading “PSOD : LINT1 motherboard interrupt”

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