Users Guide

Unable to allocate storage space to a VM
One of the advantages of using a VM is that you can dynamically allocate drive space to VMs to meet storage requirements. It
helps optimize the space utilization.
You may be unable to allocate space to a VM if the hard drives associated with VM do not have enough free space. Before you
try to allocate space to a VM, ensure that the hard drives have enough free space.
Configuration backup and restore procedures
Dell EMC recommends that you back up your VMware ESXi configuration after you complete the initial setup on a routine
schedule that fits your datacenter environment. Backing up your configuration captures the license code (host serial number).
To back up or restore the configuration information, use the VMware vSphere CLI. The vSphere CLI is available in:
● vSphere CLI package — vSphere CLI package can be installed on either Linux or on Microsoft Windows operating systems.
● vSphere Management Assistant (vMA) — vMA can be deployed on an ESXi host.
Both of this software are available for download from vmware.com. For more information on setting up and running the vSphere
CLI, see the VMware vSphere Command-Line Interface Installation and Reference Guide and VMware ESXi Embedded and
vCenter Server Setup Guide at vmware.com/support/pubs.
The backup and restore steps are given in this section considering that:
● You have already imported the vSphere CLI to a system other than the one you want to back up or restore.
● You have installed the Windows or Linux management Application Programming Interfaces (APIs).
Backing up the configuration of your ESXi host
About this task
To back up configuration data of a host:
Steps
1. Start the vSphere CLI.
2. Run the vicfg-cfgbackup command with the -s flag to save the host configuration to the specified backup filename:
vicfg-cfgbackup --server< ESXi-host-ip> -- portnumber <port_number> --protocol
<protocol_type> --username root --password root_password [-s <backup-filename>
The -portnumber and -protocol options are optional. If you exclude them, the defaults are port 443 and protocol
HTTPS.
NOTE:
If you do not specify a password in the command line, you are prompted for one when the command executes.
For example: vicfgcfgbackup --server 172.17.13.211 --username root –s backupdate.dat
NOTE: If your administrative password includes special characters, such as $ or &, you must include a backslash escape
character (\) before each special character.
Restoring configuration of your ESXi host
About this task
To restore the configuration data of a host:
NOTE:
The backup process does not support restoring to later builds. This requirement can be overridden by using the –f
option.
Steps
1. Turn off any VM that is running on the host you want to restore.
2. Optionally, restore the host to the ESXi build number used when the backup file was created.
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Troubleshooting operating system issues