6.0.2

Table Of Contents
ESXi Booting Requirements
vSphere 6.0 supports booting ESXi hosts from the Unied Extensible Firmware Interface (UEFI). With UEFI,
you can boot systems from hard drives, CD-ROM drives, or USB media. Network booting or provisioning
with VMware Auto Deploy requires the legacy BIOS rmware and is not available with UEFI.
ESXi can boot from a disk larger than 2TB provided that the system rmware and the rmware on any add-
in card that you are using support it. See the vendor documentation.
N Changing the boot type from legacy BIOS to UEFI after you install ESXi 6.0 might cause the host to
fail to boot. In this case, the host displays an error message similar to Not a VMware boot bank. Changing the
host boot type between legacy BIOS and UEFI is not supported after you install ESXi 6.0.
Storage Requirements for ESXi 6.0 Installation or Upgrade
Installing ESXi 6.0 or upgrading to ESXi 6.0 requires a boot device that is a minimum of 1GB in size. When
booting from a local disk, SAN or iSCSI LUN, a 5.2GB disk is required to allow for the creation of the VMFS
volume and a 4GB scratch partition on the boot device . If a smaller disk or LUN is used, the installer
aempts to allocate a scratch region on a separate local disk. If a local disk cannot be found the scratch
partition, /scratch, is located on the ESXi host ramdisk, linked to /tmp/scratch. You can
recongure /scratch to use a separate disk or LUN. For best performance and memory optimization, do not
leave /scratch on the ESXi host ramdisk.
To recongure /scratch, see the topic "Set the Scratch Partition from the vSphere Web Client" in the vSphere
Installation and Setup documentation.
Due to the I/O sensitivity of USB and SD devices the installer does not create a scratch partition on these
devices. When installing or upgrading on USB or SD devices, the installer aempts to allocate a scratch
region on an available local disk or datastore. If no local disk or datastore is found, /scratch is placed on the
ramdisk. After the installation or upgrade, you should recongure /scratch to use a persistent datastore.
Although a 1GB USB or SD device suces for a minimal installation, you should use a 4GB or larger device.
The extra space will be used for an expanded coredump partition on the USB/SD device. Use a high quality
USB ash drive of 16GB or larger so that the extra ash cells can prolong the life of the boot media, but high
quality drives of 4GB or larger are sucient to hold the extended coredump partition. See Knowledge Base
article hp://kb.vmware.com/kb/2004784.
In Auto Deploy installations, the installer aempts to allocate a scratch region on an available local disk or
datastore. If no local disk or datastore is found, /scratch is placed on ramdisk. You should
recongure /scratch to use a persistent datastore following the installation.
For environments that boot from a SAN or use Auto Deploy, you need not allocate a separate LUN for each
ESXi host. You can co-locate the scratch regions for many ESXi hosts onto a single LUN. The number of
hosts assigned to any single LUN should be weighed against the LUN size and the I/O behavior of the
virtual machines.
Supported Remote Management Server Models and Firmware Versions
You can use remote management applications to install or upgrade ESXi, or to manage hosts remotely.
Table 28. Supported Remote Management Server Models and Minimum Firmware Versions
Remote Management Server
Model Firmware Version Java
Dell DRAC 7 1.30.30 (Build 43) 1.7.0_60-b19
Dell DRAC 6 1.54 (Build 15), 1.70 (Build 21) 1.6.0_24
Dell DRAC 5 1.0, 1.45, 1.51 1.6.0_20,1.6.0_203
Dell DRAC 4 1.75 1.6.0_23
Chapter 2 Upgrade Requirements
VMware, Inc. 45