VMware SAN restore very slow

Confirm you have a VMware Restore ESX Server in the Virtual Machine Servers credentials, as well as a virtual center server credentials already.

If you only have vcenter server credentials, and you choose to only restore over san. The restore will occur over the network via the vcenter server.

See the following TN's and extract from the NBU for VMware guide.

Enterprise Support - Symantec Corp. - Two causes of slow NetBackup for VMware restore performance

 

Enterprise Support - Symantec Corp. - How To get the benefit of restoring directly to ESX when the ESX is managed by Virtual Center

 

Read the section on Restores from the PDF guide for NBU for VMware

 

Particularly around a designated Restore ESX Server

 

When choosing a target host for the restore, note the following:

■ If NetBackup has credentials to access a vCenter server (but does not have

credentials to access a VMware restore ESX server), note: You can restore

the virtual machine through the vCenter server. In this case, the data

movement for the restore passes through the vCenter server. Passing the

virtual machine data through the vCenter server may increase the amount

of time that is needed to complete the restore.

 

The credentials must give NetBackup full access privileges to the vCenter

server.

See “Adding NetBackup credentials for VMware” on page 42.

■ If NetBackup has credentials to access a vCenter server as well as a VMware

restore ESX server, the restore may complete faster. In this case, by default

NetBackup passes the virtual machine data directly to the restore ESX server,

bypassing the vCenter server. You can select a vCenter folder in which to

place the restored virtual machine. The credentials must give NetBackup

full access privileges to the restore ESX server.

Select the vCenter Server, and click Search to select the VMware restore

ESX server.

Note: In vCenter 5.x environments, NetBackup uses the selected vCenter

to create the virtual machine. NetBackup then writes the .vmdk files directly

to the ESX server using the Restore ESX Server credentials to that server

 

If NetBackup has credentials to access an ESX server, you can designate

that server as the target for the restore. The credentials must give NetBackup

full access privileges to the ESX server.

Select None for the vCenter Server, and click Search to select the ESX

server.

Note: To restore to an ESX 5 server, the ESX must be standalone, not

managed by vCenter 5. To restore to an ESX 5 under vCenter 5, NetBackup

must have VMware restore ESX server credentials for the ESX. Select the

vCenter, and click Search to select the VMware restore ESX server.

■ ESX Server

Specifies the ESX server on which the restored virtual machine is to reside. To

use the original ESX server (the default), verify that the original ESX server still

exists.

Click the Search option to browse for a different ESX server.

See “Select ESX server dialog box (restore to alternate location)” on page 154.