Physical Disk Slice
A physical disk slice is always exported as a single-slice disk. In that case, virtual disk drivers (vds and vdc) forward I/O from the virtual disk and act as a pass-through to the physical disk slice.
A physical disk slice is exported from a service domain by exporting the corresponding slice device. If the device is different from slice 2 then it is automatically exported as a single-slice disk regardless of whether you specify the slice option. If the device is the slice 2 of the disk, you must set the slice option to export only slice 2 as a single-slice disk. Otherwise, the entire disk is exported as full disk.
 | Caution - The SPARC T7 series server and SPARC M7 series server introduce Non-Volatile Memory Express (NVMe) storage, which can be a disk drive or a Flash Accelerator F160 PCIe card. This disk type cannot be used as a full disk to build a virtual disk back end. When using such a disk, use a slice of the disk or the slice option when creating the vdsdev. |