The following table describes the three commands that are used to display system and device configuration information.
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For information about the device names that are used to identify devices on the system, see Device Naming Conventions.
When you run the prtconf and sysdef commands, the output might include the following driver-related message line next to specific device instances:
device, instance #number (driver not attached)
The absence of a driver can mean one of the following:
A driver is unavailable for the device.
No driver is currently attached because the device is not in use. When a device is unused, its driver is automatically unloaded.
No driver is currently attached because the device itself does not exist at that device instance.
Because system processes always monitor system devices, the message usually indicates the absence of the device.
The following utilities detect when a specified device is in use:
dumpadm
format
mkfs and newfs
swap
The utilities might detect some of the following usage scenarios:
Device is part of a ZFS storage pool
Device is a dump or swap device
Mounted file system or an entry for the device exists in the /etc/vfstab file
For example, using the format utility to access an active device might generate a message similar to the following:
# format Searching for disks...done AVAILABLE DISK SELECTIONS: 0. c1t0d0 <FUJITSU-MAY2073RCSUN72G-0401 cyl 8921 alt 2 hd 255 sec 63> /pci@0,0/pci1022,7450@2/pci1000,3060@3/sd@0,0 /dev/chassis/SYS/HD0/disk 1. c1t1d0 <FUJITSU-MAY2073RCSUN72G-0401-68.37GB> /pci@0,0/pci1022,7450@2/pci1000,3060@3/sd@1,0 /dev/chassis/SYS/HD1/disk Specify disk (enter its number): 0 selecting c1t0d0 [disk formatted] /dev/dsk/c1t0d0s0 is part of active ZFS pool rpool. Please see zpool(1M). FORMAT MENU: . . .
The following examples show different uses of the prtconf, sysdef, and other commands to display system configuration information.
Example 1 Displaying All the Devices of a SPARC Based System$ /usr/sbin/prtconf -v | more
Memory size: 32640 Megabytes
System Peripherals (Software Nodes):
SUNW,SPARC-Enterprise-T5220
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.
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location: /dev/chassis/SUN-Storage-J4400.0918QAKA24/SCSI_Device__2/disk
Device Minor Nodes: The detailed disk information is described in this section.
dev=(27,40)
dev_path=/pci@0/pci@0/pci@8/pci@0/pci@a/LSILogic,sas@0/sd@2,0:a
spectype=blk type=minor
dev_link=/dev/dsk/c4t2d0s0
dev_path=/pci@0/pci@0/pci@8/pci@0/pci@a/LSILogic,sas@0/sd@2,0:a,raw
spectype=chr type=minor
dev_link=/dev/rdsk/c4t2d0s0
Device Minor Layered Under:
mod=zfs accesstype=blk
dev_path=/pseudo/zfs@0
Minor properties:
name='Nblocks' type=int64 items=1 dev=(27,40)
value=0000000074702c8f
name='Size' type=int64 items=1 dev=(27,40)
value=000000e8e0591e00
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.
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Example 2 Displaying Information About a Specific Device of a SPARC Based System
In this example, the sd instance number for /dev/dsk/c4t2d0s0 is displayed.
# prtconf -v /dev/dsk/c4t2d0s0 | grep instance sd, instance #5Example 3 Displaying Only the Devices That Are Attached to the System
# prtconf | grep -v notExample 4 Displaying Device Usage Information
In this example, the fuser command is used to display which processes are accessing the /dev/console device.
# fuser -d /dev/console /dev/console: 5742o 2269o 20322o 858oExample 5 Displaying System Configuration Information of an x86 Based System
# prtconf System Configuration: Oracle Corporation i86pc Memory size: 8192 Megabytes System Peripherals (Software Nodes): i86pc scsi_vhci, instance #0 pci, instance #0 pci108e,4843, instance #0 pci8086,25e2, instance #0 pci8086,3500, instance #7 pci8086,3510, instance #9 pci8086,3518, instance #10 pci108e,4843, instance #0 pci108e,4843, instance #1 pci8086,350c, instance #8 pci8086,25e3 (driver not attached) pci8086,25f8, instance #2 pci108e,286, instance #0 disk, instance #0 disk, instance #2 disk, instance #3 disk, instance #1 pci8086,25e5 (driver not attached) pci8086,25f9 (driver not attached) pci8086,25e7 (driver not attached) pci108e,4843, instance #0 (driver not attached) pci108e,4843, instance #1 pci108e,4843, instance #2 (driver not attached) pci108e,4843 (driver not attached) pci108e,4843 (driver not attached) pci108e,4843 (driver not attached) pci108e,4843 (driver not attached) pci8086,2690, instance #6 pci108e,125e, instance #2 pci108e,125e, instance #3 pci108e,4843, instance #0 pci108e,4843, instance #1 device, instance #0 keyboard, instance #0 mouse, instance #1 pci108e,4843, instance #2 pci108e,4843, instance #3 pci108e,4843, instance #0 storage, instance #0 disk, instance #4 . . .Example 6 Displaying Device Configuration Information of an x86 Based System
# sysdef * Hostid * 29f10b4d * * i86pc Configuration * * * Devices * +boot (driver not attached) memory (driver not attached) aliases (driver not attached) chosen (driver not attached) i86pc-memory (driver not attached) i86pc-mmu (driver not attached) openprom (driver not attached) options, instance #0 packages (driver not attached) delayed-writes (driver not attached) itu-props (driver not attached) isa, instance #0 motherboard (driver not attached) pnpADP,1542, instance #0 asy, instance #0 asy, instance #1 lp, instance #0 (driver not attached) fdc, instance #0 fd, instance #0 fd, instance #1 (driver not attached) kd (driver not attached) kdmouse (driver not attached) . . .