Vmmaxvirtualdisks

The vmmaxvirtualdisks option specifies the maximum size of the VMware virtual machine disks (VMDKs) to include in a backup operation.

This feature is available only if the client operates as a data mover for IBM Spectrum Protect™ for Virtual Environments: Data Protection for VMware.

Use the vmmaxvirtualdisks option with the vmskipmaxvirtualdisks option to specify how the client processes large VMDKs during a backup operation:

Set the vmmaxvirtualdisks option to specify the maximum size of the VMDKs to include.
Set the vmskipmaxvirtualdisks option to back up the VMDKs that do not exceed the maximum size (and exclude any VMDKs that exceed the size), or fail the operation.

Supported clients

Linux operating systems This option is valid for 64-bit Linux clients that are configured as data movers that back up VMware virtual machines.

Windows operating systems This option is valid for 64-bit Windows clients that are configured as data movers that back up VMware virtual machines.

Options file

Linux operating systems Set the vmmaxvirtualdisks option in the client system options file (dsm.sys). You can also specify this option as a command-line parameter on the backup vm command.

Windows operating systems Set the vmmaxvirtualdisks option in the client options file (dsm.opt). You can also specify this option as a command-line parameter on the backup vm command.

Syntax


                      .-2----------.   
>>-VMMAXVIRTUALDisks--+-size ------+---------------------------><
                      '-2...8, 999-'

Parameters

size: Specifies the maximum size, in terabytes, of the VMDKs to include in a backup operation. The range is an integer 2 - 8; the default is 2. The maximum is 8.; To ensure that the VMware VMDK size that is included in backup operations is always the maximum size, specify 999. Use this value as the most effective method to ensure that the maximum value is always set. This value prevents the need to continuously modify the option files.; When you also specify the vmskipmaxvirtualdisks yes option, VMDKs that are the specified maximum size or smaller are backed up and VMDKs that are larger than the specified maximum size are excluded.; When you also specify the vmskipmaxvirtualdisks no option, backup operations fail if a VMDK is larger than the specified maximum size.

Examples

Options file:

vmmaxvirtualdisks 3

Command line:

Back up VMDKs that are 5 TB or smaller and exclude VMDKs that are larger than 5 TB:

backup vm VM1 -vmmaxvirtualdisks=5 -vmskipmaxvirtualdisks=yes

Back up VMDKs that are 3 TB or smaller and fail the backup operation if a VMDK is larger than 3 TB:

backup vm VM1 -vmmaxvirtualdisks=3 -vmskipmaxvirtualdisks=no

Back up VMDKs that are 8 TB or smaller and exclude VMDKs that are larger than 8 TB:

backup vm VM1 -vmmaxvirtualdisks=8 -vmskipmaxvirtualdisks=yes

backup vm VM1 -vmmaxvirtualdisks=999 -vmskipmaxvirtualdisks=yes