Patch Name:  PHKL_8084

Patch Description: s700 10.20 LVM Cumulative Patch

Creation Date: 96/08/06

Post Date:  96/08/08

Hardware Platforms - OS Releases:
        s700: 10.20

Products: N/A

Filesets:
        LVM.LVM-KRN

Automatic Reboot?: Yes

Status: General Superseded

Critical:
        Yes
        PHKL_8084: ABORT

Path Name:  /hp-ux_patches/s700/10.X/PHKL_8084

Symptoms:
        PHKL_8084:
        LVM may return I/O's with errors instead of sending them to
        an alternate link.  This patch also facilitates using
        "vgreduce -f" for physical volumes which have alternate
        links; without this patch "vgreduce -f" is not allowed on
        LVM disks with alternate links.

Defect Description:
        PHKL_8084:
        Without this patch LVM will not retry failed i/os on
        alternate links unless the error is one that denotes that
        the device is offline or powerfailed.  Other errors,
        are not retried on an alternate link and may cause LVM to
        report the error to users applications.  Typically,
        customers with unmirrored lvols using multiported devices
        like the HP3232 (Nike) disk array would see the problem
        when an EIO error is reported to LVM from the underlying
        device driver due to a device or driver problem.  In this
        situation LVM would report the EIO to user applications
        without trying any available alternate link.  Another
        problem this patch fixes allows reducing out physical
        volumes from a volume group when the device is not
        available and the device has links, formerly devices with
        links could not be removed if they were not available.

SR:
        4701330647

Patch Files:
        /usr/conf/lib/liblvm.a(lv_hp.o)
        /usr/conf/lib/liblvm.a(lv_ioctls.o)
        /usr/conf/lib/liblvm.a(lv_phys.o)

what(1) Output:
        /usr/conf/lib/liblvm.a(lv_hp.o):
                lv_hp.c $Date: 96/08/06 14:19:26 $ $Revision: 1.18.9
                        8.16 $ PATCH_10.20 (PHKL_8084)
        /usr/conf/lib/liblvm.a(lv_ioctls.o):
                lv_ioctls.c $Date: 96/08/06 14:30:39 $ $Revision: 1.
                        18.98.12 $ PATCH_10.20 (PHKL_8084)
        /usr/conf/lib/liblvm.a(lv_phys.o):
                lv_phys.c $Date: 96/08/06 14:30:49 $ $Revision: 1.14
                        .98.7 $ PATCH_10.20 (PHKL_8084)

cksum(1) Output:
        3240872570 53056 /usr/conf/lib/liblvm.a(lv_hp.o)
        3117990445 22288 /usr/conf/lib/liblvm.a(lv_ioctls.o)
        1499157805 6572 /usr/conf/lib/liblvm.a(lv_phys.o)

Patch Conflicts: None

Patch Dependencies:  None

Hardware Dependencies:  None

Other Dependencies:  None

Supersedes:  None

Equivalent Patches:
        PHKL_8080:
        s700: 10.01

        PHKL_8081:
        s800: 10.01

        PHKL_8082:
        s700: 10.10

        PHKL_8083:
        s800: 10.10

        PHKL_8085:
        s800: 10.20

Patch Package Size:  140 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 PHKL_8084

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

                swinstall -x autoreboot=true -x match_target=true \
                        -s /tmp/PHKL_8084.depot

        5b. For a homogeneous NFS Diskless cluster run swcluster on the
            server to install the patch on the server and the clients:

                swcluster -i -b

            This will invoke swcluster in the interactive mode and
            force all clients to be shut down.

            WARNING: All cluster clients must be shut down prior to the
                     patch installation.  Installing the patch while the
                     clients are booted is unsupported and can lead to
                     serious problems.

            The swcluster command will invoke an swinstall session in which
            you must specify:

                alternate root path  -  default is /export/shared_root/OS_700
                source depot path    -  /tmp/PHKL_8084.depot

            To complete the installation, select the patch by choosing
            "Actions -> Match What Target Has" and then "Actions -> Install"
            from the Menubar.

        5c. For a heterogeneous NFS Diskless cluster:

                - run swinstall on the server as in step 5a to install
                  the patch on the cluster server.

                - run swcluster on the server as in step 5b to install
                  the patch on the cluster clients.

        By default swinstall will archive the original software in
        /var/adm/sw/patch/PHKL_8084.  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 PHKL_8084.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/PHKL_8084.depot of=/dev/rmt/0m bs=2k

Special Installation Instructions:  None