RadioCuba Tech Tips (RTT)

 As I am sure many of you have found, 1Gb switching is not cutting it anymore, especially dealing with the cabling sprawl of dual/quad port cards, switch uplinks, etc. Also, as more devices are being upgraded to support 10Gb or the Multi-gig standard ( IEEE 802.3bz), reducing cabling and uplinks between devices and switching, while increasing performance and bandwidth is becoming a no-brainer. https://en.wikipedia.org/wiki/2.5GBASE-T_and_5GBASE-T Here's a quick and dirty of list of some viable switches to look at. Mikrotik CRS312-4C+8XG-RM https://mikrotik.com/product/crs312_4c_8xg_rm#fndtn-specifications Buffalo BS-MP2012 (12 ports) https://www.buffalo-technology.com/productpage/switch-bs-mp2012/ Buffalo BS-MP20 (8 port copper) https://www.buffalo-technology.com/productpage/switch-bs-mp2008/ TrendNet TEG-7080ES (8 port copper) https://www.trendnet.com/products/managed-switch/8-Port-10G-EdgeSmart-Switch-TEG-7080ES QNAP QSW-M1208-8C https://www.qnap.com/en-us/product/qsw-m1208-8c QN

 First things first - these resources/documentation are quite helpful during the setup process, especially if you are coming from the VMware side and haven't used Xen in many years. https://xcp-ng.org/docs/ https://xen-orchestra.com/docs/ https://www.linuxhelp.com/add-additional-hard-disk-xenserver https://support.citrix.com/article/CTX121313 Default Credentials Default Web UI credentials are admin@admin.net / admin Default console/SSH credentials are xoa / xoa (first login) Set Static Network Login to the console and run: xoa network static Sudo/Admin Access To avoid typing sudo for any admin command, you can have a root shell with sudo -s Storage Management (Work in Progress) During install, pick the install disk and then (1) disk for an initial VM datastore. If you select multiple disks it will try to span the SR across them. Only select (1) if available, the others will need to be added from the console after the initial installation is complete. *STRONGLY* recommended to use E

 I needed to update the firmware on some Intel X540-T2 cards that I had gotten for my homelab.  The cards didn't appear to have been updated in some time. https://downloadcenter.intel.com/download/29137/Ethernet-Intel-Ethernet-Connections-Boot-Utility-Preboot-Images-and-EFI-Drivers?product=58954 After downloading the latest firmware from Intel, I was struggling on the bootutil update syntax.  I came across this blog post that was quite helpful. https://calvin.me/how-to-update-intel-nic-firmware I also found this Intel support article that broke down the syntax and options for the bootutil command. https://www.intel.com/content/www/us/en/support/articles/000005790/software.html My cards had both the PXE and UEFI firmware, so I had to use the following: bootutil64e.efi -UP=PXE+EFI -ALL -File=BootIMG.FLB