IT Systems Engineering
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Tired of “Unsupported Cluster Configuration” for some of your VMs?
Inspite of my refreshing the VMs having this error……….fingers crossed……..sometimes the error went away….sometimes did not. I was getting really frustrated. Here is how to fix it, once and for all: In Failover Cluster Manager, check the name of the VM….if it is something like – “SCVMM server_name Resources”… rename it to just server_name. Then refresh the VM inside SCVMM’s Virtual machine Manager. VIOLA! the VM would be back to normal.
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Configuring iSCSI network for Windows Server 2012
While setting up a new network for iSCSI operation here are the things we need to check and configure: Overall Configuration: Check the general notes here: http://technet.microsoft.com/en-us/library/ee338480%28v=ws.10%29.aspx especially the “Networking best practices section” there. The most relevant parts are: Use a a separate LAN or setup VLAN for iSCSI traffic Use CHAP (at least) Configure Jumbo Frame size Use multiple NICs Configure MPIO, use vendor’s DSM if available.
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How to find out your network binding order
Here is a quick and dirty way of finding out the binding order of your multi-homed server (meaning a server with multiple NICs or multiple network ports). On a command prompt run ipconfig. All active connections will be shown in the current binding order. The first entry is the one in the top of the binding order and so and so forth. The ports which are not connected are not shown here. This is especially useful if you are running server core (without GUI) and quickly want to find out this info.
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Quick setup guide to Remote Desktop Services on Server 2008 R2
First, why am I using 2008 R2 in year 2014? Well, because some of our applications are not supported on 2012 R2 and I cannot mix and match 2008 with 2012 in a RDS farm. So here is the quick and dirty guide (no VDI, yet): Here are the servers you need: RD gateway + RD web access (in DMZ) This provides web access to RDS on the public internet. RD Connection broker (in internal network) This routes everything. I am going to install the RD license server role on this one as well. RD Session Host (in internal network) This is the actual terminal server where applications are installed…
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Finding driver information on a Windows Server core
I found it very hard to find the version of drivers on a server core machine (the one without a GUI). Here is a nice PowerShell script which will show you what you need: Get-WmiObject -class MSFC_FCAdapterHBAAttributes -namespace “root\WMI” | Select-Object DriverVersion, FirmwareVersion, Manufacturer, Model, SerialNumber | Format-Table –AutoSize Note: in the old days, you could use fcinfo but that does not install on Windows 2008 or 2012 Server.