HP-UX 11i Version 2 Release Notes (October 2003)

Commands and System Calls
I/O Commands
Chapter 8
196
Impact
Apart from the presence of the messages described in the previous section, there are no
other known impacts.
Compatibility
There are no compatibility issues.
Performance
There are no performance issues.
Documentation
For further information, see the Driver Development Guide, available from the Developer
and Solution Partner Program (DSPP) at http://h21007.www2.hp.com/dev/.
Obsolescence
Not applicable.
The ioscan Command
The ioscan command scans the system and lists all reportable hardwares found on the
system.
Summary of Change
The ioscan command includes two enhancements for HP-UX 11i v2:
•The -t option allows you to display the date and time at which the system hardware
was last scanned. Similar to the date command output, the output of ioscan -t will
look as follows:
Mon Apr 28 17:47:05 2003
This option must be used exclusively; that is, it cannot be used with any other
ioscan option.
•The -e option allows you to display the Extended Firmware Interface (EFI) device
paths for certain devices (disks).
The appearance is subject to change, but currently it looks as follows:
1/0/8/0/0.0.0 disk HP 36.4GST336752LC
Acpi(000222F0,17E)/Pci(0|0)/Scsi(Pun0,Lun0)/HD(Part1,Sig8B3C0000)/
\EFI\HPUX\HPUX.EFI
Impact
• Benefits of the -t option:
Initiating an actual hardware scan on a system by running ioscan takes more time
on a fully loaded system. Using this new -t option provides a decision point to
determine if a new hardware scan is necessary or can be postponed to be run at a
time when the system is less loaded.