• IT Systems Engineering

    Enabling MPIO in Windows Server 2012 core

    Here is how you can enable MPIO quickly in a Windows server 2012 core  installation like Hyper-V 2012 (without GUI). Run this command to install MPIO feature: ocsetup MultipathIo /norestart You will have to restart the computer later on. MPIO won’t work until the server is restarted. After the reboot you can either use the command mpclaim to enable MPIO for unclaimed devices [meaning those LUNs which appear like 4 separate disk drives but are actually one LUN connected via 4 paths]: mpclaim –r –i –a Note: I am getting an error saying that an invalid switch was specified. However I ran this command BEFORE rebooting the Hyper-V server. YMMV.…

  • IT Systems Engineering

    Quick and dirty NFS share on Windows 2008 R2

    I call it dirty because I allowed anonymous access to the NFS share. I tried the UID mapping thing but could not get it to work properly for multiple reasons. They had not enabled the NFS extensions in AD, so I could not use the AD authentication. The “unmapped UNIX user access” option worked only for giving access to the NFS share to only one Solaris server. Other Solaris servers could not write to the same share. Hence I broke down and enabled anonymous access. So here is how to create a quick NFS share for allowing your Solaris brothers to send data to your Windows world.