Patch Name:  PHCO_6825

Patch Description: s700 9.X diskcheck utility

Creation Date: 96/02/27

Post Date:  96/03/01

Hardware Platforms - OS Releases:
        s700: 9.01 9.03 9.05 9.07 9.09

Products: N/A

Filesets:
        UX-CORE

Automatic Reboot?: No

Status: Special Release

Critical: No

Path Name:  /hp-ux_patches/s700/9.X/PHCO_6825

Symptoms:
        PHCO_6825:
        There are no external symptoms.  This utility is intended to
        identify potentially defective C3324A/W (1GB) and
        C3325A/W (2GB) disk drive assemblies.

Defect Description:
        PHCO_6825:
        Certain Single-Ended and Fast-Wide SCSI disk drives are
        experiencing failure rates which exceed Hewlett-Packards
        high quality standards.  Workstations containing these disk
        drives may experience a failure caused by a build-up of
        deposits on the Read/Write Heads.  This will, in turn, lead
        to a non-recoverable disk failure.

        The problem has been isolated to a specific range of disk
        drives from one vendor. These drives were distributed from
        January 1, 1995 through June 30, 1995.

        Although it remains unlikely that the majority of systems
        running these particular disk drives will experience this
        defect, Hewlett-Packard has decided to eliminate the
        possibility of failure by replacing these potentially
        defective assemblies in our installed systems.

SR:
        0000000000

Patch Files:  
        /usr/contrib/bin/diskcheck

what(1) Output:
        /usr/contrib/bin/diskcheck:
                HP92453-02A.09.01 HP-UX SYMBOLIC DEBUGGER (END.O) $R
                        evision: 72.3 $

sum(1) Output:
        4046 127 /usr/contrib/bin/diskcheck

Patch Conflicts: None

Patch Dependencies:  None

Hardware Dependencies:  None

Other Dependencies:  None

Supersedes:  None

Equivalent Patches:
        PHCO_6826:
        s700: 10.00 10.01

Patch Package Size:  120 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. Copy the patch to your /tmp directory and unshar it:

                cd /tmp
                cp patch_source/PHCO_6825 .
                sh PHCO_6825

        3. Become root and run update:

                /etc/update [-r [kernel_gen_file]] -s \
                        /tmp/PHCO_6825.updt PHCO_6825

        Update moves the original software to
        /system/PHCO_6825/orig.  Keep this file to recover from any
        potential problems.  You should move the .text file to
        /system/PHCO_6825 for future reference.

        To put this patch on a magnetic tape and update from the
        tape drive, use dd:

                dd if=PHCO_6825.updt of=/dev/rmt/0m bs=2048

Special Installation Instructions:  
        After installing the patch, perform the following steps:

        1)  Execute the diskcheck utility:

                /usr/contrib/bin/diskcheck

            You will see output similar to the following:

            REV 4.O February 2,1996
            Peripheral SCSI ID SUPPLIER MODEL    SERIAL NUMBER
            ========== ======= ======== ======== =============
             Disk          2   TOSHIBA  CD-ROM X CDROM mech
             Disk          5   SEAGATE  ST31230N 00670569
             Disk          4   HP       C3324A   US53107D3H
             Disk          6   HP       C3325W   US51806D4A

           Note any listings under the "MODEL" column for the model
           C3324/5 and record the SERIAL NUMBER(s) to be used in
           step 2.

          *NOTE: Some HP Drives have a serial number beginning
                 with  MYxxxxxxxx, these drive were manufactured
                 in Malaysia and are NOT involved in this program.
                 As well, NO other HP drives are involved in this
                 program.

        2) If the serial number(s) obtained in Step 1 are
           US527xxxxx (where xxxxx equals anything) or LESS, this
           disk will be replaced by Hewlett Packard at no charge to
           you. Proceed to step 3.

           If the serial number(s) obtained in Steps 1 are
           US528xxxxx or GREATER, the drive does NOT require
           replacement under this program.

        3) To schedule a service visit to replace any affected
           drive(s), please call in U.S. and Canada, 1-800-221-4191,
           between 9AM to 6PM EST.  Outside North America, please
           contact your local support office.  When calling, please
           reference the LYNX disk program and have your SYSTEM and
           DISK Serial Numbers ready.

           Shortly after placing the call you will be contacted by
           an HP Field Service Representative to schedule a service
           visit at a mutually agreeable time.

           In the unlikely event that you should experience a disk
           failure, it is recommended that you maintain a regular
           backup routine.  This will also aid in restoring your
           data when the drive is replaced.