====== Display the AIX devices in a tree format ======
In AIX there is the ''proctree'' (or ''ps -fT 0'') command to display the currently running processes in a tree format. This is very helpful when one is primaryly interested in the parent and child relationship between the individual processes. Unfortunately a similar command for the parent and child relationship of devices is still missing from the stock AIX. There are already several script implementations out on the net to fill that particular gap. As a scripting exercise i wanted to do my own version of a ''devtree'' command. It was included in the [[2012:09:05:aix_rpms_aaa_base_logrotate_and_run_parts|aaa_base]] RPM package. The output for e.g. an LPAR with virtual ethernet and virtual SCSI devices looks like this:
|
|-- inet0
| |-- en1
| |-- et1
| |-- lo0
|-- iocp0
|-- lvdd
|-- pty0
|-- rootvg
| |-- hd1
| |-- hd2
| |-- hd3
| |-- hd4
| |-- hd5
| |-- hd6
| |-- hd8
| |-- hd10opt
| |-- hd9var
| |-- lv_srv
|-- sfw0
|-- sys0
| |-- sysplanar0
| | |-- L2cache0
| | |-- mem0
| | |-- pci0
| | | |-- pci4
| | | |-- pci5
| | | |-- pci6
| | |-- pci1
| | | |-- pci7
| | | |-- pci8
| | |-- pci2
| | | |-- pci9
| | | |-- pci10
| | | |-- pci11
| | |-- pci3
| | | |-- pci12
| | | |-- pci13
| | |-- pci14
| | |-- proc0
| | |-- proc4
| | |-- vio0
| | | |-- ent1
| | | |-- vsa0
| | | | |-- vty0
| | | |-- vscsi0
| | | | |-- hdisk0
| | | |-- vscsi1
|
`-- End of the device tree
in the regular mode, or like this:
|
|-- inet0 Available Internet Network Extension
| |-- en1 Available Standard Ethernet Network Interface
| |-- et1 Defined IEEE 802.3 Ethernet Network Interface
| |-- lo0 Available Loopback Network Interface
|-- iocp0 Defined I/O Completion Ports
|-- lvdd Available LVM Device Driver
|-- pty0 Available Asynchronous Pseudo-Terminal
|-- rootvg Defined Volume group
| |-- hd1 Defined Logical volume
| |-- hd2 Defined Logical volume
| |-- hd3 Defined Logical volume
| |-- hd4 Defined Logical volume
| |-- hd5 Defined Logical volume
| |-- hd6 Defined Logical volume
| |-- hd8 Defined Logical volume
| |-- hd10opt Defined Logical volume
| |-- hd9var Defined Logical volume
| |-- lv_srv Defined Logical volume
|-- sfw0 Available Storage Framework Module
|-- sys0 Available System Object
| |-- sysplanar0 Available System Planar
| | |-- L2cache0 Available L2 Cache
| | |-- mem0 Available Memory
| | |-- pci0 Defined PCI Bus
| | | |-- pci4 Defined 00-10 PCI Bus
| | | |-- pci5 Defined 00-12 PCI Bus
| | | |-- pci6 Defined 00-16 PCI Bus
| | |-- pci1 Defined PCI Bus
| | | |-- pci7 Defined 02-10 PCI Bus
| | | |-- pci8 Defined 02-12 PCI Bus
| | |-- pci2 Defined PCI Bus
| | | |-- pci9 Defined 03-10 PCI Bus
| | | |-- pci10 Defined 03-12 PCI Bus
| | | |-- pci11 Defined 03-16 PCI Bus
| | |-- pci3 Defined PCI Bus
| | | |-- pci12 Defined 01-10 PCI Bus
| | | |-- pci13 Defined 01-12 PCI Bus
| | |-- pci14 Defined PCI Bus
| | |-- proc0 Available 00-00 Processor
| | |-- proc4 Available 00-04 Processor
| | |-- vio0 Available Virtual I/O Bus
| | | |-- ent1 Available Virtual I/O Ethernet Adapter (l-lan)
| | | |-- vsa0 Available LPAR Virtual Serial Adapter
| | | | |-- vty0 Available Asynchronous Terminal
| | | |-- vscsi0 Available Virtual SCSI Client Adapter
| | | | |-- hdisk0 Available Virtual SCSI Disk Drive
| | | |-- vscsi1 Available Virtual SCSI Client Adapter
|
`-- End of the device tree
in the detailed output mode.