Patch Name: PHCO_23036

Patch Description: s700_800 10.20 fsadm_vxfs(1M) cumulative patch

Creation Date: 01/01/02

Post Date:  01/02/27

Hardware Platforms - OS Releases:
	s700: 10.20
	s800: 10.20

Products: N/A

Filesets:
	JournalFS.VXFS-BASE-RUN

Automatic Reboot?: No

Status: General Release

Critical:
	Yes
	PHCO_23036: CORRUPTION

Path Name: /hp-ux_patches/s700_800/10.X/PHCO_23036

Symptoms:
	PHCO_23036:
	If a filesystem is extended beyond the supported
	limit of 128 gigabytes, it may become unmountable.
	This patch will disallow expansion of vxfs
	filesystem beyond 128 gigabytes.

	PHCO_18477:
	There are two problems addressed by this patch:
	1)The directory re-organization report (-D) is in
	error. The information displayed in the column titled
	"Blocks to Reduce" is incorrect.
	2)A directory re-organization (-d) fails with errno 16
	(EBUSY). The errno is only visible if you use the verbose
	and summary (-vs) option along with the -d option.

Defect Description:
	PHCO_23036:
	fsadm -b does not prevent a VxFS filesystem from being
	grown beyond the supported limit of 128 gigabytes.
	Resolution:
	fsadm -b behavior has been modified to make sure that
	the new filesystem size does not exceed the supported
	limit of 128 gigabytes. It will refuse to expand a
	filesystem beyond this limit.

	PHCO_18477:
	1)The directory reorganization report (-D option)
	displays erroneous data for the "Blocks to Reduce"
	column. The "Blocks to Reduce" column contains the
	number of blocks that could be freed if the entries in
	the directory are compressed. The loop which passed
	through the blocks of each directory was being incorrectly
	incremented therefore resulting in the incorrect
	calculation of "Blocks to Reduce".
	2)fsadm failed during directory recorganization (-d)
	with errno 16 (EBUSY). This failure was only visible
	if the ( -v option) option was used. The -v option,
	when used with the -d option, reports all ioctl calls
	and their status. Therefore, the outcome of each
	attempted sort (VX_DIRSORT ioctl) is displayed.
	The directory reorganize routine sorts directories
	two blocks at at time.  If the second block is updated,
	then during the next iteration of the loop, fsadm detects
	the change and returns EBUSY thinking the directory
	was being modified by another process. The most effcient
	fix was to modify the reorganization routine to not
	re-compare the just modified block with the next block,
	but to move on to the next two directory blocks.
	Although there may be a missed opprotunity to reorganize,
	it will likely be taken care of in the next pass.

SR:
	1653292557 4701347096 8606169478

Patch Files:
	/usr/lbin/fs/vxfs/fsadm

what(1) Output:
	/usr/lbin/fs/vxfs/fsadm:
		PATCH_10_20: ckino.o dfrag.o dirsort.o efrag.o excl.
			o extent.o options.o resize.o fsadm.o 00/12/
			26

cksum(1) Output:
	2218083926 110592 /usr/lbin/fs/vxfs/fsadm

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies: None

Supersedes:
	PHCO_18477

Equivalent Patches: None

Patch Package Size: 170 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_23036

	5a. For a standalone system, run swinstall to install the
	    patch:

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHCO_23036.depot

	By default swinstall will archive the original software in
	/var/adm/sw/patch/PHCO_23036.  If you do not wish to retain a
	copy of the original software, you can create an empty file
	named /var/adm/sw/patch/PATCH_NOSAVE.

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

	It is recommended that you move the PHCO_23036.text file to
	/var/adm/sw/patch for future reference.

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

		dd if=/tmp/PHCO_23036.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions: None