Memory only runs at 1 speed in these servers -> 1066 MHz Needed for vSphere Dynamic Voltage and Frequency Scaling (DVFS). This makes sure that all power circuits in the racks are evenly used. By using the ‘Auto’ mode, the active PSU’s are chosen based on the server’s serial number (odd or even number = odd or even PSU numbers).
This settings does not affect redundancy as the standby PSU’s jump in as soon as an active one fails. The remaining PSU’s are placed in standby. Thus, it is best to use the minimum amount of PSU’s so they deliver the highest possible output. The less power you draw from a PSU, the more gets lost to keep the PSU working. This might look like the most efficient use, but the more power is drawn from a PSU, the more efficient it operates. The other options give this control to the server itself.īy default (Balanced Mode), the server uses all installed PSU’s. Hands over the Power Management to vSphere. In most server rooms or when using a laptop to access the server console, a numeric keypad is not available.Īllows to enable custom Power settings specific for vSphere When an ESX host is not using all its cores, the active cores will run faster resulting in faster VM speeds. When not all cores are used, ESX will park those cores and over clock the other ones. Necessary for firmware updates, …ĭivides each core in 2 logical CPU’s, improving the vSphere CPU schedulers possibilities. Setting it to disabled saves you 2 seconds when booting the server 🙂ĭepending on your needs, you might want to select improved Memory ProtectionĪllows the use of Keyboard and Mouse during vSphere setup.Īllows the host to boot from external USB keys (and iLO). If you don’t PXE boot the server, set it to disabled. The Virtual Serial Port is needed to do Serial-Line logging through iLO 3. The onboard Serial Port is left enabled in case Serial-Line logging at the server is needed.
This list is only a general guideline for most of the settings tuned for vSphere. You might need to change options if you have a specific configuration or specific needs. Options which are not relevant are left out. The default options are in Italic while the non-default (recommended) options are in Bold.
The HP Proliant DL580 G7 has several important BIOS Settings which need to be set.
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