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| Operating system-based naming | ||
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| Prev | Disk device naming in VxVM | Next |
In the OS-based naming scheme, all disk devices are named using the c#t#d#s# format.
The syntax of a device name is c#t#d#s#, where c# represents a controller on a host bus adapter, t# is the target controller ID, d# identifies a disk on the target controller, and s# represents a partition (or slice) on the disk.
Note: |
For non-EFI disks, the slice s2 represents the entire disk. For both EFI and non-EFI disks, the entire disk is implied if the slice is omitted from the device name. |
The boot disk (which contains the root file system and is used when booting the system) is often identified to VxVM by the device name c0t0d0.
OS-based names can be made persistent, so that they do not change after reboot. By default, OS-based names are not persistent, and are regenerated if the system configuration changes the device name as recognized by the operating system.