5-10
AlphaServer 8200/8400 Operations Manual
Table 5-2 SRM Console Device Naming Conventions
Field
Meaning
Description
dd
Device driver
Two-letter designator for a port or class device driver.
Usually one of:
dk SCSI disk fw FDDI network
dr RAID set disk mk SCSI tape
du DSSI disk mu DSSI tape
dv Floppy disk pk SCSI class
ew Ethernet network pu DSSI class
a
Adapter ID
Specifies the one-letter designator for adapter ID. One
of a, b, c,…
u
Unit number
Specifies the device unit number. For DIGITAL MSCP
devices, this is a unique monotonically increasing
number. For SCSI devices, this is 100 times the bus
node number, the next designator.
n
Node number
Specifies the bus node ID. Only meaningful for storage
devices.
c
Channel
number
Specifies the channel or PCI function number. Only
meaningful for multi-channel or multi-function devices.
s
Slot number
Specifies the device’s logical slot number. The output
of a show config command indicates the logical slot
numbers for devices in a system.
h
Hose number
Specifies the device’s hose number. The output of a
show config command shows the KFTIA or KFTHA
modules on the TLSB of your system.
Ideally, your system manager labeled the I/O devices on your system, so that you can
identify a particular unit by its name. If not, you will have to follow cables back to the
device adapter and then back to the hose to identify a particular unit.
In either case, select a device on your system that is of the type appropriate for the
media your operating system software is on. It is useful to reserve one device on your
system for this use, for consistency. This is done by setting the bootdef_dev
environment variable, as described next.
