To configure a Recovery-Series appliance for SAN-direct backups for Fiber Channel
The only configuration effort required is to ensure the SAN is compatible and ensure the Unitrends WWPN is provided and provisioned on required SAN LUNs that VMWare backups will occur for. With Unitrends use of VDDK 5.5 or higher and since release 9.0, the vprotect engine will determine compatible SAN paths from VMWare's own configuration, and VMWare will permit the use of that path automatically. Other than proper SAN and VMWare provisioning, no Unitrends UI configuration is required.
To identify the WWPN of your FC adapter in the Unitrends Appliance, see this KB
To Configure the Recovery-Series appliance for SAN-direct backups using iSCSI
- Verify that the VMware SAN-direct requirements have been met.
- Physically connect the Unitrends Recovery-Series appliance to the VLAN used for iSCSI using a dedicated network adapter.
- Typically a 10G connection is used (note, on 1Gbit, SAN Direct and NBDSSL will have no perceivable performance difference unless the reason to use SAN Direct is to avoid network saturation.)
- iSCSI IPs and other production IPs should not share the same VLAN.
- Production LANs should not be able to route to iSCSI Networks through gateways.
- Log in to the backup system and select Configure > Appliances > Select the local appliance > edit
- Click Protect VMs on a SAN. button found in the edit interface
- Complete the fields for iSCSI initiator and LUN selection for each LUN a VM resides in that requires protection.
If vProtect cannot directly access the SAN, the backup runs using the network connection, moving the guest’s data from the external SAN through the ESX file system to the backup system. If using network bandwidth is a problem during certain hours, schedule your backups accordingly. This decision is macde by VMWare's protocols, not by unitrends. If SAN is configured but backups continue to use NBDSSL protocols, your SAN vendor or VMWare support or both may be asked to be engaged by Unitrends Support for further diagnosis. Unitrends cannot manage or configure your SAN or VMWare host directly, but we will be happy to participate in your vendor support calls to facilitate speed of resolution.
To check whether the backup ran using the SAN-direct method, double-click the backup in the Status window or on the Backups report to view associated details. Look for the following in the Raw Output in the vProtect Messages section:
- using transport method san: The SAN-direct connection was used for the backup.
- using transport method nbd (or nbdssl): The regular network connection was used for the backup.
This information is located in the “VMware SAN-direct backups” section of the Unitrends Administrators Guide.: