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Sunday, April 20, 2014

Potential Network Black Hole Issue

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When I do vSphere and hardware infrastructure health checks very often I meet misconfigured networks usually but not only in blade serve...
11 comments:
Saturday, April 19, 2014

How to fix broken VMFS partition?

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I had a need of more storage space in my lab. The redundancy was not important so I changed RAID configuration of local disk from RAID 1 to...

DELL recommended BIOS Settings for VMware vSphere Hypervisor

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Here are a list of BIOS settings  specifically regarding Dell PowerEdge servers: Hardware-Assisted Virtualization : As the VMware best...
Tuesday, April 15, 2014

Long network lost during vMotion

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We have observed strange behavior of vMotion during vSphere Design Verification tests after successful vSphere Implementation. By the way t...

DELL official response to OpenSSL Heartbleed

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The official Dell response to OpenSSL Heartbleed for our entire portfolio of products is listed here .
Monday, April 14, 2014

Code Formatter

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From time to time i'm publishing programming code source or configurations on my blog running on google blog platform blogger.com.  I...
Tuesday, April 08, 2014

PRTG alerts phone call notifications

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I have been asked by someone how to do phone call notification of critical alerts in PRTG monitoring system. Advantage of phone call notifi...
2 comments:
Monday, March 10, 2014

Difference between ESXi Shell time-outs

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ESXi Advanced Settings have two timeout parameters to manage ESXi Shell timeout: UserVars.ESXiShellTimeOut  UserVars.ESXiShellInteractiv...
Saturday, March 08, 2014

Script to create VMware SRM database

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VMware SRM installer creates tables in database automatically but you must prepare MS-SQL database, DB schema and ODBC data source before S...
Friday, February 28, 2014

VMware Site Recovery Manager network ports

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Here are documented network port numbers and protocols that must be open for Site Recovery Manager, vSphere Replication, and vCenter Serve...
1 comment:

Storage design verification - performance test

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I had a unique chance to work with relatively big customer on VMware vSphere Architecture Design from the scratch. I prepared vSphere Archi...

VMware vSphere 5 Memory Management and Monitoring

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Do you think you fully understand VMware vSphere ESXi memory management? Compare your understanding with memory diagram at   VMware KB 201...
Wednesday, February 26, 2014

DELL Force10 S4810 fans

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The S4810 comes from the factory with one power supply and two fan modules installed in the chassis. Both the fan module and the integrated...
Monday, February 24, 2014

VMware vShiled Manager - VXLAN limit

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We all know that all technologies has some limits. Only important thing is to know about particular limits limiting your solution. Do you...
1 comment:
Sunday, February 16, 2014

Good or Bad Backup Job?

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Veeam is very good backup software specialized on agent-less VM backups. But we all  know that bugs are everywhere and Veeam is not the exc...

Performance Data charts for datastore LUNs report the message: No data available

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Performance Data charts for datastore LUNs are extremely useful to have clue to understand storage performance trend. However sometimes y...
Wednesday, February 12, 2014

Reserved IP addresses

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Very useful Wikipedia page with list of  all "Reserved IP addresses". http://en.wikipedia.org/wiki/Reserved_IP_addresses
Sunday, February 09, 2014

VMware vSphere: Migration of RDM disk to VMDK

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I have received following question from my customer ... "We have business critical application with MS-SQL running in virtual machin...
2 comments:
Wednesday, February 05, 2014

Configure default settings on a VMware virtual distributed switch

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Original blog post and full text is here . All credits go to http://kickingwaterbottles.wordpress.com Here is the PowerCLI script that w...

Network Port list of vSphere 5.5 Components

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Year by year vSphere platform becomes more complex. It is pretty logical as Virtualization is de facto standard on modern datacenters and n...