ECO NUMBER: ALPDRIV12_071 ----------- PRODUCT: OpenVMS Alpha Operating System -------- UPDATED PRODUCT: OpenVMS Alpha Operating System 7.1 ---------------- APPRX BLCK SIZE: 288 ---------------- COVER LETTER 1 KIT NAME: ALPDRIV12_071 2 KITS SUPERSEDED BY THIS KIT: ALPDRIV09_071 3 KIT DEPENDENCIES: 3.1 The following remedial kit(s) must be installed BEFORE installation of this, or any required kit: None. 3.2 In order to receive all the corrections listed in this kit, the following remedial kits should also be installed: None. 4 KIT DESCRIPTION: 4.1 Version(s) of OpenVMS to which this kit may be applied: OpenVMS Alpha V7.1, V7.1-1H1, V7.1-1H2 4.2 Files patched or replaced: o [SYS$LDR]SYS$DRDRIVER.EXE (new image) 5 PROBLEMS ADDRESSED IN ALPDRIV12_071 KIT o The original implementation of DRDRIVER set the DEV$M_NOCLU bit and cleared the DEV$M_CLU bit in the UCB's devchar2 field for each logical drive. This was intended to delay cluster serving of the DRcu: units until the controller-initialization sequence had correctly determined the device's characteristics (size, support for forced error, etc.). Once the characteristics were known and the appropriate UCB fields filled in, the driver would clear DEV$M_NOCLU and set DEV$M_CLU, then call scs$disk_mscp_newdev() to arrange for the unit to be cluster-served. -- COVER LETTER -- Page 2 29 September 1999 Although the effects of this approach were not well defined/documented, it worked for several years. Unfortunately, recent changes to other parts of the system (MOUNT and the XQP in particular) have broken this approach. These facilities expect consistency in the NOCLU bit. Customers have been reporting HDRFULL and BADFID errors that have been traced to this way of handling NOCLU. The driver now sets CLU and clears NOCLU, as well as all of the other relevant characteristics in the UCB, before the UCB is linked into the I/O database. This ensures that a unit is not cluster-served before its time. o A mismatch between the command count and the actual number of commands causes an INVEXCEPTN system crash. The crash footprint is as follows: Fatal Bugcheck Crash Time: 28-MAY-1999 15:37:26.88 Bugcheck Type: INVEXCEPTN, Exception while above ASTDEL Node: TRDHQ1 (Clustered) CPU Type: AlphaServer 2100 4/275 VMS Version: V7.1 Current Process: A1 Sender_1 Current Image: DSA0:[ALLIN1.OA$EXE_AXP_SHARE]OA$MAIN.EXE Failing PC: FFFFFFFF.802537DC SYS$DRDRIVER_NPRO+057DC Failing PS: 30000000.00000804 6 KIT INSTALLATION RATING: The following kit installation rating, based upon current CLD information, is provided to serve as a guide to which customers should apply this remedial kit. (Reference attached Disclaimer of Warranty and Limitation of Liability Statement) INSTALLATION RATING: 3 : To be installed by customers experiencing the problems corrected. 7 INSTALLATION INSTRUCTIONS: Install this kit with the VMSINSTAL utility by logging into the SYSTEM account, and typing the following at the DCL prompt: @SYS$UPDATE:VMSINSTAL ALPDRIV12_071 [location of the saveset] The saveset location may be a tape drive, CD, or a disk directory that contains the kit saveset. -- COVER LETTER -- Page 3 29 September 1999 The images in this kit will not take effect until the system is rebooted. If you have other nodes in your OpenVMS cluster, 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. Copyright (c) Compaq Computer Corporation, 1999 All Rights Reserved. Unpublished rights reserved under the copyright laws of the United States. The software contained on this media is proprietary to and embodies the confidential technology of Compaq Computer Corporation. Possession, use, or dissemination of the software and media is authorized only pursuant to a valid written license from Compaq Computer Corporation. DISCLAIMER OF WARRANTY AND LIMITATION OF LIABILITY THIS PATCH IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE HEREBY EXCLUDED TO THE EXTENT PERMITTED BY APPLICABLE LAW. IN NO EVENT WILL COMPAQ BE LIABLE FOR ANY LOST REVENUE OR PROFIT, OR FOR SPECIAL, INDIRECT, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, WITH RESPECT TO ANY PATCH MADE AVAILABLE HERE OR TO THE USE OF SUCH PATCH.