Vmmaxrestoreparalleldisks

The vmmaxrestoreparalleldisks option enables an IBM Spectrum Protect client to restore specific multiple virtual disks at the same time per virtual machine.

You can specify the number of disk sessions to be opened, up to a maximum of 10. Sessions are allocated per disk based on the transport type from the option vmvstortransport. Available sessions are allocated across the number of disk sessions specified by vmmaxrestoreparalleldisks, by rounding down the number of sessions per disk to the nearest whole number.

Supported clients

Linux operating systems This option can be used with supported x86_64 Linux clients.

Windows operating systems This option can be used with supported Windows clients. This option is not valid for Data Protection for Microsoft Hyper-V backups.

Note:

You must ensure the total number of restore operations from all sources to the same ESXi host does not exceed 26. Due to an ESXi host issue, exceeding this number of parallel restores may cause the operation to fail. For example, if you have 3 different restore instances to the same ESXi host, each with VMMAXRESTOREPARALLELDISKS 10, the restores may fail because the total number of connections is 30

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

Options file

Linux operating systems This option is valid in the client system options file (dsm.sys), or on the command line for Restore VM. It can also be included on the server in a client options set. It cannot be set in the Preferences Editor.

Windows operating systems This option is valid in the client options file (dsm.opt) or on the command line for Restore VM. It can also be included on the server in a client options set. It cannot be set in the Preferences Editor.

Syntax

Parameters

integer: Specifies the number of virtual hard disks that can be restored simultaneously. The default is 2. The maximum is 10.

Examples

Task

Set a maximum of 2 simultaneous restore operations for virtual disks in the restore operation of the virtual machine vm1:

dsmc restore vm vm1 -vmmaxrestoreparalleldisks=2 -vmmaxrestoresessions=8

This will assign 4 simultaneous restore sessions per virtual disk.