HP Integrity Virtual Machines 4.2: Installation, Configuration, and Administration

3 Creating Virtual Machines
After you install Integrity VM, you can create guests and virtual resources for the guests to use.
This chapter includes the following topics:
• “Legacy and Agile Device Names”
• “Specifying Virtual Machine Characteristics”
• “Using the hpvmcreate Command”
• “Starting Virtual Machines”
• “Changing Virtual Machine Configurations”
• “Cloning Virtual Machines”
• “Stopping Virtual Machines”
• “Removing Virtual Machines”
• “Troubleshooting Virtual Machine Creation Problems”
3.1 Legacy and Agile Device Names
Integrity VM Version 4.2 supports the usage of both legacy and agile devices in guest
configurations. Use of agile device names for configuring storage devices is highly recommended
as it provides multipathing benefits. You can use the hpvmmodify -P guest -m rsrc
command to change the existing legacy device to its agile device equivalent. The ioscan -m
dsf command displays the mapping of the agile devices to legacy devices for the specific device
special file dsf and vice versa. For example:
# ioscan -m dsf /dev/rdisk/disk216
Or:
# ioscan -m dsf /dev/rdsk/c12t0d0
NOTE: The rmsf -L command should not be executed on an Integrity VM server until all
guest devices names have been changed to agile device names.
The following commands are helpful for reconfiguring guests to use agile device names:
Table 3-1 Commands for Reconfiguring Guests to Agile Device Names
DescriptionCommand
By default, creates both persistent and legacy DSFs for
new devices.
insf
Restores legacy DSFs and legacy configuration
information.
insf -L
Aids in migration by removing all legacy DSFs and legacy
configuration information.
rmsf -L
Maps persistent DSFs to their equivalent legacy DSFs and
vice versa.
ioscan —m dsf
Prints persistent DSFs when used with the -n option to
list DSFs.
ioscan -N
Associates a new disk with an existing set of DSFs. This
is used when replacing an internal disk or a disk in a
JBOD.
io_redirect_dsf
Modifies backing devices for guest devices.
hpvmmodify -P guest —m rsrc
3.1 Legacy and Agile Device Names 43