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IDE and SATA disks can be processed in the Direct SAN access transport mode.TVS, known for its sporty scooters, has ventured into the 125cc segment with the Jupiter 125.

To write VM data to the target datastore in the Direct SAN access transport mode, select to convert VM disks to the thick format at the Destination step of the replication job wizard. By default, Veeam Backup & Replication replicates VM disks in the thin format. If disks are thin-provisioned, Veeam Backup & Replication will write VM data in the Network or Virtual appliance mode.

Veeam Backup & Replication writes VM data to the target datastore in the Direct SAN access transport mode only if disks of a VM replica are thick-provisioned. The source side proxy will keep reading VM data from the source datastore in the Direct SAN access transport mode. During subsequent replication job sessions, Veeam Backup & Replication will use the Virtual appliance or Network transport mode on the target side. Veeam Backup & Replication uses the Direct SAN access transport mode to read and write VM data only during the first session of the replication job.Either disable CBT for VM virtual disks for the duration of the restore process or select another transport mode for incremental restore. For incremental restore due to VMware limitations.For Veeam Cloud Connect Replication because in this scenario Veeam Backup & Replication always creates VM replicas with thin disks.If at least one VM disk is located on a VVol.For example, release notes for VDDK 7.0.3. For details on vSAN restrictions, see VDDK release notes.

You can use Virtual appliance and Network transport modes to process such VMs. You cannot use the Direct SAN access mode in the following cases:.If there are VM disks that cannot be processed in the Direct SAN access transport mode, then the rest of the disks also cannot be processed in this transport mode. It means that one VM can be processed in one transport mode only. The transport mode is used for the entire VM, not for the virtual disk.The Direct SAN access transport mode can be used to restore only thick VM disks.Limitations for the Direct SAN Access Mode A VMware backup proxy must have write access to LUNs where VM disks are located.To prevent volumes initialization, Veeam Backup & Replication automatically sets the SAN Policy within each proxy to Offline Shared and also sets the SAN LUNs to the Offline state. Otherwise, the VMFS filesystem will be overwritten with NTFS, and volumes will become unrecognizable by ESXi hosts. The volumes must be visible in Disk Management but must not be initialized by the OS. SAN storage volumes presented as VMware datastores must be exposed to the OS of the VMware backup proxy that works in the Direct SAN access transport mode.If a direct SAN connection is not configured or not available when a job or task starts, the job or task will fail. A VMware backup proxy using the Direct SAN access transport mode must have a direct access to the production storage using a hardware or software HBA.If you assign this role to a VM, the VMware backup proxy performance may not be optimal. It is strongly recommended that you assign the role of a VMware backup proxy working in the Direct SAN access mode to a physical machine.To use the Direct SAN access transport mode, make sure that the following requirements are met: Requirements for the Direct SAN Access Mode The Direct SAN access transport mode can be used for all operations where the VMware backup proxy is engaged: The Direct SAN access transport method provides the fastest data transfer speed and produces no load on the production network. VM data travels over the SAN, bypassing ESXi hosts and the LAN. In the Direct SAN access transport mode, Veeam Backup & Replication leverages VMware VADP to transport VM data directly from and to FC, FCoE and iSCSI storage over the SAN. The Direct SAN access transport mode is recommended for VMs whose disks are located on shared VMFS SAN LUNs that are connected to ESXi hosts over FC, FCoE, iSCSI, and on shared SAS storage.

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