Vmlimitperhost
The vmlimitperhost specifies the maximum number of virtual machines in an ESX server that can be included in a parallel backup operation.
This option works together with the vmmaxparallel and vmlimitperdatastore options to optimize the performance of parallel backups, and to reduce the processor load that parallel backs can create on a host in the vSphere infrastructure.
Supported clients
This
option can be used with supported x86_64 Linux clients.
This
option can be used with supported Windows clients.
Options file
This option
is valid in the client system options file (dsm.sys), in the client options file (dsm.opt) or on
the command line for Backup VM. It can also be
included on the server in a client options set. It cannot be set in
the Preferences Editor.
This option is valid
in the client options file (dsm.opt) or on the
command line for Backup VM. It can also be included
on the server in a client options set. It cannot be set in the Preferences
Editor.
Syntax
.-0-----------. >>-VMLIMITPERHost-- --+-+---------+-+-------------------------->< '-integer-'
Parameters
- integer
- Specifies the maximum number of virtual machines in any one ESX server, that can be included in a parallel backup operation. The maximum that you can specify is 50 VMs. The default is 0 (zero).
- Specifying 0 means that you are not concerned about how many VMs can be backed up in parallel from an ESX server. Instead, you want to limit the maximum number of VMs to include in a parallel backup by using the limit you specify on the vmmaxparallel option.
- Adjust the values of vmmaxparallel, vmlimitperhost, and vmlimitperdatastore to find the values that provide optimal performance for parallel backups, in your environment.
Examples
- Options file
- VMLIMITPERH 5