Specifications

Administration Guide
256 VMware, Inc.
See!“Migrating!VMware!Workstation!and!VMware!GSX!Server!Virtual!Machines”!on!
page 63!for!details!on!specifying!the!disk!geometry!in!a!virtual!machine’s!configuration!
file.
Extend the specified VMFS to the specified length
-X --extendfile #[gGmMkK]
Use!this!command!to!extend!the!size!of!a!disk!allocated!to!a!virtual!machine,!after!the!
virtual!machine!has!been!created.!The!virtual!machine!that!uses!this!disk!file!must!be!
powered!off!when!you!enter!this!command.!Also,!the!guest!operating!system!must!be!
able!to!recognize!and!
use!the!new!size!of!the!disk,!for!example,!by!updating!the!file!
system!on!the!disk!to!take!advantage!of!the!extra!space.
Specify!the!size!in!kilobytes,!megabytes,!or!gigabytes!by!adding!a!suffix!of!k!(kilobytes),!
m!(megabytes),!g!(gigabytes)!respectively.!
Manage SCSI reservations of physical targets or LUNs
‐L!‐‐lock![reserve|release|reset]
The!-L!reserve!command!reserves!the!specified!raw!disk,!or!the!disk!containing!the!
specified!VMFS!volume.!After!the!reservation,!other!servers!will!get!a!SCSI!reservation!
error!if!they!attempt!to!access!that!disk,!but!the!server!that!did!the!reservation!will!be!
able!to!access!the
!disk!normally.!
The!-L!release!command!releases!the!reservation!on!the!specified!disk,!or!disk!
containing!the!specified!VMFS!volume.!Any!other!server!can!access!the!disk!again.!
The!-L!reset!command!does!a!SCSI!reset!to!the!specified!disk.!Any!reservation!held!
by!another!server!is!released.
Recovers a VMFS
-R --recover
This!command!enables!you!to!recover!a!VMFS!(accessible!by!multiple!ESX!servers)!
when!other!vmkfstools!commands!indicate!that!the!file!system!is!locked!by!another!
ESX!Server!machine,!but,!in!fact,!no!other!server!is!currently!accessing!this!file!system.!
This!situation!may!occur!if!the!VMFS!was!being!
accessed!by!a!server!(for!example,!
running!a!virtual!machine)!and!that!server!crashed.!
CAUTION The!reserve,!release,!and!reset!commands!can!interrupt!the!operations!
of!other!servers!on!a!storage!area!network!(SAN),!so!use!these!commands!
with!great!caution.!