Patch Name: PHSS_28341

Patch Description: s700_800 10.20 OV OB4.10 patch - EMC packet

Creation Date: 03/01/17

Post Date:  03/01/22

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

Products:
	OmniBackII A.04.10

Filesets:
	OMNIBACK-II.OMNI-EMC-P,A.04.10

Automatic Reboot?: No

Status: General Release

Critical: No

Path Name: /hp-ux_patches/s700_800/10.X/PHSS_28341

Symptoms:
	PHSS_28341:
	Id = HSLco37092  SR: H555008778
	    Restore fails with:

	      "|Major| From: SYMA@<hostname> ""  Time: <time>
	       |223:325| Could not activate volume group
	       /dev/sg_sap.

	       |Major| From: SYMA@<hostname> ""  Time: <time>
	       |223:363| Could not prepare mirror disks of object
	       /sg_sap for backup.
	       (Activation of volume group failed.)".

	Id = HSLco37193  SR: H555008807
	    When backing up SAP integration with EMC split mirror
	    functionality, not all the SAP files are backed up.

Defect Description:
	PHSS_28341:
	Id = HSLco37092
	    Backup is made in SSEA/split mirror backup environment
	    with the Application host in the cluster. When
	    restoring object on the Backup host (R2), which is not
	    in the cluster the cluster tag (-c y) from the
	    Application host is also restored, so the volume group
	    can not be activated properly.

	Resolution:
	    By default the cluster tag on the Backup host (R2) is
	    disabled with the "vgchange -q n -c n" command. To
	    enable the cluster tag on Backup host, set the new
	    environment variable SMB_CLUS_DEACT=1 in the
	    /opt/omni/.omnirc file.

	Id = HSLco37193
	    In split mirror environment with huge SAP databases
	    it can happen that the size of the message buffer
	    OmniBack II uses is too small to receive complete list
	    of SAP files to be backed up.

	Resolution:
	    Setting the OB2IPCBUFSIZE environment variable in the
	    /opt/omni/.omnirc file on Cell Server, R1 and R2 hosts,
	    specifying the desired amount of memory to be used for
	    the buffer solves the described problem.
	    Please read the following instructions and make sure
	    that the patches listed in "Other Dependencies" section
	    (see below) are installed and the environment
	    variable is set on Cell Server, R1 and R2 systems before
	    running the backup!

	    How to determine the buffer size?
	    ---------------------------------

	    N_obj:       number of objects (files)
	    N_fs:        number of file systems
	    N_lvmvg:     number of volume groups
	    N_dg:        number of disk groups
	    N_rdsk:      number of rawdisks
	    Obj:         Object Name
	    ObjBack:     Object Backup Name
	    MntPathLen:  Path name on backup (R2) host
	                 (example: /var/opt/omni/tmp/App_host)
	    fsmnt:       File System Mount Point
	    fsdev:       File System Device File
	                 (example: /dev/dsk/|c0t1d1,lvol1|)
	    vg:          Volume group
	                 (ex: /dev/vg01)
	    dg:          Disk group (VxVM) - dependence on mapfile
	                 which is required for creating disk group
	                 (example:/dev/vx/dsk/dg01)
	    rdsk:        Raw disk file name
	                 (example: /dev/rdsk/c1t1d1)
	    AvgLen_<xxx> average length of <xxx>

	
	    There are two different buffers used:

	    1. BSM <-> R1
	    2. R1 <-> R2

	    Calculating the BSM <-> R1 buffer size
	    --------------------------------------
	    MsgSize_BSM_R1 = N_obj * (AvgLen_Obj + 1 + MntPathLen)

	    Calculating the R1 <-> R2 buffer size
	    -------------------------------------
	    MsgSize_R1_R2 =
	      N_obj*(AvgLen_Obj+1+AvgLen_ObjBack) +
	      N_fs*(AvgLen_fsmnt*2 + MntPathLen + AvgLen_fsdev*2)+
	      N_lvmvg*(AvgLen_vg*2) + N_dg*(AvgLen_dg*2) +
	      N_rdsk*(AvgLen_rdsk*2)

	    Calculating the OB2IPCBUFSIZE value
	    -----------------------------------
	    OB2IPCBUFSIZE > max (MsgSize_BSM_R1, MsgSize_R1_R2)

	    RESTORE NOTE:
	    -------------
	    If restore is started using the sapbda utility,
	    the variable OB2IPCBUFSIZE must be exported to
	    environment prior to starting sapbda.

	    Known problems:
	    ---------------
	    If the calculated variable OB2IPCBUFSIZE is correctly
	    set, but is still too small for the file list to fit
	    into the message buffer, the session will fail with
	    the following error seen in the report:

	    BR295I Splitting mirror disks...
	    BR280I Time stamp <time>
	    BR279E Return code from '/opt/omni/lbin/ob2smbsplit
	       /<sap_homedir_path>/.<filename>.lst': 2
	    BR299E Split/resynchronization of mirror disks failed

	    In this case the variable OB2IPCBUFSIZE must be
	    recalculated to appropriate value. See above how to
	    determine it.

	    Part of SSPUX410_033.

SR:
	H555008778 H555008807

Patch Files:
	/opt/omni/databases/vendor/emc/hp/s800/hp-ux-1020/A.04.10/
		packet.Z
	/opt/omni/databases/vendor/emc/hp/s800/hp-ux-11/A.04.10/
		packet.Z

what(1) Output:
	/opt/omni/databases/vendor/emc/hp/s800/hp-ux-1020/A.04.10/
		packet.Z:
		None
	/opt/omni/databases/vendor/emc/hp/s800/hp-ux-11/A.04.10/
		packet.Z:
		None

cksum(1) Output:
	599085285 263939 /opt/omni/databases/vendor/emc/hp/s800/
		hp-ux-1020/A.04.10/packet.Z
	316652955 275030 /opt/omni/databases/vendor/emc/hp/s800/
		hp-ux-11/A.04.10/packet.Z

Patch Conflicts: None

Patch Dependencies: None

Hardware Dependencies: None

Other Dependencies:
	If any newer SSP for the EMC is installed
	on your system, you must re-apply the SSP after
	installing this EMC patch.

	PHSS_28331:
	Release Date: Mid February 2003
	Id = HSLco37193  SR:H555008807
	PHSS_28331 is required for this defect fix.

	PHSS_28232:
	Release Date: Early February 2003
	Id = HSLco37193  SR:H555008807
	Bad catalog access message is displayed without PHSS_28232.

	PHSS_28343:
	Release Date: Early February 2003
	Id = HSLco37193  SR:H555008807
	PHSS_28343 is required for this defect fix.

	PHSS_27602:
	Release Date: Available
	Id = HSLco37193  SR:H555008807
	PHSS_27602 is required for this defect fix.

Supersedes: None

Equivalent Patches:
	PHSS_28342:
	s700: 11.00 11.11 11.20
	s800: 11.00 11.11 11.20

Patch Package Size: 580 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 PHSS_28341

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

		swinstall -x autoreboot=true -x match_target=true \
			-s /tmp/PHSS_28341.depot

	By default swinstall will archive the original software in 
	/var/adm/sw/patch/PHSS_28341.  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 PHSS_28341.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/PHSS_28341.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions:
	PHSS_28341:
	NOTE!

	This patch has to be installed on the Installation
	Server host.

	The OB2 EMC agent must be redistributed to the EMC
	client system(s) after the installation of the patch
	in order to get the fixes into effect.

	For distribution of the EMC agent, refer to the OmniBackII
	Installation guide.

	Patch includes the following Site Specific Patches:
	   SSPUX410_033