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Conference vaxaxp::vmsnotes

Title:	VAX and Alpha VMS
Notice:	This is a new VMSnotes, please read note 2.1
Moderator:	VAXAXP::BERNARDO

Created:	Wed Jan 22 1997
Last Modified:	Fri Jun 06 1997
Last Successful Update:	Fri Jun 06 1997
Number of topics:	703
Total number of notes:	3722

372.0. "rdb/vms" by MDR01::NIEVES (MCS Madrid) Mon Mar 24 1997 04:59

    Hi,
    
    a customer has detected the following problem creating new files using
    RDB.
    
    VMS 6.2
    ALPHA
    RDB 6.1-A
    
    Sometimes, not always when they create a new database the disk
    structure is corrupted (for RDB, incorrect dates). When this happens 
    to a user, all other users that try to create a new database obtains the 
    same problem. After a time, maybe 10 or 15 minutes, they try to create 
    the database and its succesfull.
    
    When RDB creates new database it uses the feature ERASE PATTERN BUFFER.
    
    Does anybody know something about this?
    
    Regards,
    
    Nieves

T.R	Title	User	Personal Name	Date	Lines
372.1	Rdb has seen this problem a couple times	ORAREP::LASTOVICA	Comparisons are as bad as cliches	`Mon Mar 24 1997 09:16`	19
	There are at least a couple possible problems with Rdb and erasing data in files. The erase pattern bbuffer is one common problem. To find out if the erase pattern buffer is corrupt on the system, Have the customer use ANALYSE/SYSTEM and issue the command SDA> exa @exe$gl_erasepb;2000 It should show something like "Zeros suppressed from 80304000 through 80305FFF". If anything else, then the customer has the problem. There is supposed to be a patch around (for one of the SCSI drivers; I don't recall the name of the patch or the driver; search around in STARS for it). Otherwise, make sure that you've got the rest of the available VMS patches installed, along with the current version of Open3D (if open3d is installed, make sure that it is version 3.4 or later), if POLYCENTER Performance Data Collector is installed, make sure that it is at least version V2.2 and audit any disk controllers/devices to make sure that they are up to rev.
372.2	SYS$PKQDRIVER clobbers EXE$GL_ERASEPB	XDELTA::HOFFMAN	Steve, OpenVMS Engineering	`Mon Mar 24 1997 13:35`	11
	There was a problem found recently in one of the SCSI port drivers (in SYS$PKQDRIVER, specifically), and the problem effectively "corrupts" the EXE$GL_ERASEPB erase pattern buffer. See VMSZOO::RMS_OPENVMS note 2981.*, among other discussions. If the patch kit is not available yet, log an IPMT. (Note that the Rdb conference is located at ORAREP::NOMAHS::RDB_60.)