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HP Services Software Patches - vaxmscp01_071
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NOTE: An OpenVMS saveset or PCSI installation file is stored
on the Internet in a self-expanding compressed file.
The name of the compressed file will be kit_name-dcx_vaxexe
for OpenVMS VAX or kit_name-dcx_axpexe for OpenVMS Alpha.
Once the file is copied to your system, it can be expanded
by typing RUN compressed_file. The resultant file will
be the OpenVMS saveset or PCSI installation file which
can be used to install the ECO.
Copyright (c) Digital Equipment Corporation 1997. All rights reserved.
OP/SYS: OpenVMS VAX
COMPONENT: TMSCP.EXE
MSCP.EXE
SOURCE: Digital Equipment Corporation
ECO INFORMATION:
ECO Kit Name: VAXMSCP01_071
ECO Kits Superseded by This ECO Kit: None
ECO Kit Approximate Size: 144 Blocks
Kit Applies To: OpenVMS VAX V7.1
System/Cluster Reboot Necessary: Yes
Installation Rating: 3 - To be installed on all systems running
the listed versions of OpenVMS which
are experiencing the problems described.
NOTE: In order to receive the full fixes listed in this kit,
the following remedial kits also need to be installed:
None
ECO KIT SUMMARY:
An ECO kit exists for TMSCP and MSCP on OpenVMS VAX V7.1. This kit
addresses the following problems:
o TMSCP does not restore R2 properly before using the register
as an MSCP message. This misuse manifests either in a
corrupted TMSCP$ERR_TBL which causes devices to be inaccessible,
or the system will crash. The outcome depends on the value in
R2.
o The client process hangs when it attempts to mount a tape device
that is online to another host. Mount issues a packack for the
device. The client then issues an ONLINE command. During
TMSCP/ONLINE processing, if the server finds an HQB address in
the UQB$L_ONLINE_HQB field, it returns SUCCESS status with an
ALONL subcode even though the HQB is not for the requesting host.
When the client processes the successful ONLINE end message, it
issues a GUS. The server returns a unit-available for this
command which causes the client TUDRIVER to reissue an ONLINE
which starts the process all over again. It stays in this
loop forever.
o An INVEXCEPTN system crash may occur when TMSCP does not get a
message buffer during configuration when a connection to
MSCP$TAPE is broken.
o An inconsistent transfer count occurs when a forced error is
encountered on a drive. A drive directly attached (or HSx
served) reports a different transfer count from the same drive
served via the MSCP server.
Code that attempts to determine the LBN of a forced error
block by looking at the byte count in the IOST/IOSB will
arrive at different values on the same drive when directly
accessed or MSCP served.
INSTALLATION NOTES:
In order for the corrections in this kit to take effect, the system must
be rebooted. If the system is a member of a VMScluster, the entire
cluster should be rebooted.
Files on this server are as follows:
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»vaxmscp01_071.README
»vaxmscp01_071.CHKSUM
»vaxmscp01_071.CVRLET_TXT
»vaxmscp01_071.a-dcx_vaxexe
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