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OpenVMS VMS72_PORTS-V0100 Alpha V7.2 SCS ECO Summary

TITLE: OpenVMS VMS72_PORTS-V0100 Alpha V7.2 SCS ECO Summary 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) Compaq Computer Corporation 1999. All rights reserved. Modification Date: 10-AUG-1999 Modification Type: New Kit PRODUCT: OpenVMS Alpha COMPONENT: SYS$SCS.EXE (Cluster, DUDRIVER) SOURCE: Compaq Computer Corporation ECO INFORMATION: ECO Kit Name: VMS72_PORTS-V0100 DEC-AXPVMS-VMS72_PORTS-V0100--4.PCSI ECO Kits Superseded by This ECO Kit: None ECO Kit Approximate Size: 180 Blocks Kit Applies To: OpenVMS Alpha V7.2 System/Cluster Reboot Necessary: Yes Rolling Re-boot Supported: Yes Installation Rating: INSTALL_2 - To be installed on all systems running the listed version(s) of OpenVMS and using the following feature(s): OpenVMS Alpha Clusters Kit Dependencies: The following remedial kit(s) must be installed BEFORE installation of this kit: DEC-AXPVMS-VMS72_UPDATE-V0100--4.PCSI (VMS72_UPDATE-V0100) In order to receive all the corrections listed in this kit, the following remedial kits should also be installed: None ECO KIT SUMMARY: An ECO kit exists for SYS$SCS on OpenVMS Alpha V7.2. This kit addresses the following problems: Problems Addressed in the VMS72_PORTS-V0100 Kit: o FAST_PATH RSPID=0 and "stale" CDRP in SCS$GL_RDT, SYS$DUDRIVER INVEXCEPTN The cluster-related problems that can occur are: 1. SYS$SCS FAST_PATH RSPID = 0: "STALE READ/WRITE DATA-CORRUPTION" or SYS$DUDRIVER cancel-related INVEXCEPTN bugcheck Incorrect SYS$SCS FAST_PATH Response-ID (RSPID) handling results in: 1) RSPID=0 and 2) a "stale" CDRP in the Response-Descriptor-Table (SCS$GL_RDT) index-0 RDT-scans on DU-connection-failover or DU-I/O "CANCELing" will attempt to process the "stale" CDRP, with either of the following results: - SYS$DUDRIVER/DUTU$CANCEL (or DUTU$END_CANCEL) INVEXCEPTN bugchecks or - DATA-CORRUPTION due to re-issuing MSCP-I/O on "stale" CDRP 2. SCAN_RDT STALE-CDRP "RSPID" verification to avoid potential DATA-CORRUPTION from "STALE" CDRPs If an SCS system application (DUDRIVER) fails to de-allocate an "RSPID", a "stale" CDRP pointer will be left in the RDT. A check is added for "stale" CDRPs on RDT-scans, to avoid data corruption due to unintended reprocessing of a recycled CDRP. Images(s) affected: - [SYS$LDR]SYS$SCS.EXE INSTALLATION NOTES: The images in this kit will not take effect until the system is rebooted. If there are other nodes in the VMScluster, they must also be rebooted in order to make use of the new image(s). If it is not possible or convenient to reboot the entire cluster at this time, a rolling re-boot may be performed. All trademarks are the property of their respective owners.



This patch can be found at any of these sites:

Colorado Site
Georgia Site



Files on this server are as follows:

dec-axpvms-vms72_ports-v0100--4.README
dec-axpvms-vms72_ports-v0100--4.CHKSUM
dec-axpvms-vms72_ports-v0100--4.pcsi-dcx_axpexe
vms72_ports-v0100.CVRLET_TXT

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