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Jumbo frames are Ethernet frames with a payload greater than the standard mtu of 1500. Increasing the mtu size on a 1 GB network usually improves network performance and efficiency.The following PowerShell cmdlets will help display and check current jumbo frame values and edit them.The maximum value of a Jumbo frame on an Ethernet adapter…
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http://venturebeat.com/2014/10/11/eric-schmidt-explains-how-arrogance-cost-potential-google-employees-half-a-billion-dollars/# The test, he explains, is to ask whether you believe a candidate can work with other people to effect change. If someone comes across as overly arrogant, it could mean that they won’t work well on a team. Instead of thinking about what’s best for the cooperation, they’ll think about what’s best for themselves…
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A colleague was trying to generate a report of Active Directory Users, displaying their Organizational Unit and PasswordNeverExpires property status. Normally this should be very simple, but they ran into a small snag. The Active Directory module at the time of this writing which is PowerShell 4.0 does not have a direct Organizational Unit property…
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Microsoft® describes replication as a set of solutions that allow you to copy, distribute, and potentially modify data across your enterprise. Simply put it’s involves a mechanism that makes it possible to synchronize data across multiple database copies in any enterprise. We’ve been running MSSQL 2000 replication for a while now to isolate our Reporting…
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Windows Server 2012 R2 built in NIC Teaming code enables link aggregation of multiple network adapters with same speeds for outbound traffic from the host. To take advantage of inbound traffic aggregation, the switch ports will have to be configured for Etherchannel. In the example below, an already configured SwitchIndependent NIC team is converted to…
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Best practices are the most obvious starting point for improving your Hyper-V and Virtual Machine performance and I’ve listed 23 of them for you below. 1. Avoid overloading Hyper-V Server You must not overload Hyper-V Server. In other words, there is no need to host virtual machines which have no functions or I would say…
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I ran into a disk space situation on a new database server and decided to move the Tempdb files to a new drive location. My first thought was to detach the database and move the files. It turns out you can’t detach a tempdb database since it’s a system database. The following T-SQL query helped…
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I have a number of Hyper-v Windows Server 2012 R2 core host machines in my environment. Once in a while, I have to check for installed software and uninstall software for maintenance. The following WMIObject class helped me achieve the task in PowerShell. Check for installed software: Filter by Software to be Uninstalled: Locate the…
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I recently encountered a situation with a Virtual Machine running Guest OS Windows Server 2003 SP2. The parent partition (Host) is running Hyper-v 2012 R2. I could login to the VM console using Hyper-v Manager, the Guest OS had an IP Address by DHCP, but there was no network access . I could not ping…
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Reblogged from Ben Armstrong’s Virtualization Blog . I came across a person with this problem on our forums recently: If you have a virtual machine that is in a saved state, but one of the virtual machines disks is now missing for some reason, you cannot start the virtual machine and you cannot remove the…
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Chinny Chukwudozie, Cloud Solutions. 