Patch Name: PHCO_21927

Patch Description: s700_800 11.00 iostat(1) patch

Creation Date: 00/07/20

Post Date:  00/07/21

Hardware Platforms - OS Releases:
	s700: 11.00
	s800: 11.00

Products: N/A

Filesets:
	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP
	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP

Automatic Reboot?: No

Status: General Release

Critical: No

Category Tags:
	hardware_enablement general_release

Path Name: /hp-ux_patches/s700_800/11.X/PHCO_21927

Symptoms:
	PHCO_21927:
	In a multi processor system, if any processor other
	than the last processor is deallocated, iostat(1)
	shows incorrect average cpu usage information.

Defect Description:
	PHCO_21927:
	In a multiprocessor system of say, n processors,
	when a processor other than the processor "n" is
	deallocated, iostat(1) skips the information of
	processor "n" instead of the deallocated processor.
	While calculating the averages, iostat(1) takes the
	deallocated processor into consideration instead of
	processor "n".

	Resolution:
	The mpctl(2) call is used in iostat(1) to find the
	allocated processors' numbers and iostat(1)
	is made to display and calculate information
	only for the allocated processors.

SR:
	8606144314

Patch Files:
	
	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,
		v=HP:
	/usr/share/man/man1.Z/iostat.1

	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	/usr/bin/iostat

what(1) Output:
	
	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	/usr/bin/iostat:
		$Revision: 80.2.1.5 $
		PATCH_11_00: iostat.o 00/07/17

	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,
		v=HP:
	/usr/share/man/man1.Z/iostat.1:
		None

cksum(1) Output:
	
	OS-Core.SYS-ADMIN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,v=HP:
	4245953701 20480 /usr/bin/iostat

	OS-Core.ADMN-ENG-A-MAN,fr=B.11.00,fa=HP-UX_B.11.00_32/64,
		v=HP:
	1471419512 2141 /usr/share/man/man1.Z/iostat.1

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes: None

Equivalent Patches: None

Patch Package Size: 50 KBytes

Installation Instructions:
	Please review all instructions and the Hewlett-Packard
	SupportLine User Guide or your Hewlett-Packard support terms
	and conditions for precautions, scope of license,
	restrictions, and, limitation of liability and warranties,
	before installing this patch.
	------------------------------------------------------------
	1. Back up your system before installing a patch.

	2. Login as root.

	3. Copy the patch to the /tmp directory.

	4. Move to the /tmp directory and unshar the patch:

		cd /tmp
		sh PHCO_21927

	5. Run swinstall to install the patch:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -s /tmp/PHCO_21927.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/save/PHCO_21927.  If you do not wish to retain a
	copy of the original software, use the patch_save_files option:

		swinstall -x autoreboot=true -x patch_match_target=true \
			  -x patch_save_files=false -s /tmp/PHCO_21927.depot

	WARNING: If patch_save_files is false when a patch is installed,
		 the patch cannot be deinstalled.  Please be careful
		 when using this feature.

	For future reference, the contents of the PHCO_21927.text file is 
	available in the product readme:

		swlist -l product -a readme -d @ /tmp/PHCO_21927.depot

	To put this patch on a magnetic tape and install from the
	tape drive, use the command:

		dd if=/tmp/PHCO_21927.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None