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Ask the Wizard Questions

Convert: Corrupted SYSUAF

The Question is:

dear wizard


hello, i'm a systemmanager for openvms.
Now i have a problem by the
sysuaf.dat like that.

if i will see the user LWE10 i get this error-message

UAF> show lwe10
%UAF-E-SHOW_ERR, error during show
-RMS-W-RTB, 1536 byte too large for user's buffer

i have tried to use the edt, but it can't read the file

how can i repair this file?

i hope the the wizard can help....

(may the force be with you)



The Answer is:

	This reported record size is rather suspect. The SYSUAF file as
    provided with the system has a maximum record size of 1412, a tad
    smaller than the 1508 that its bucket size of 3 blocks would allow.
    The 1536 is larger than both, and a 'nice' number: 3*512.
    Unsupported software, or a subttle hardware failure may have caused this.

    	First step in the investigation should be an ANAL/RMS/FDL on SYSUAF.
    This may reveal that the file characteristics have been changed, making
    the system unsupported. NO standard VMS component will change this.
    The analyze may well report a file corruption (compression problem?)
    in which case a backup should be restored. You may be able to merge
    recently changed records from the current file with the older backed up
    file using DCL $OPEN, $READ/KEY and $WRITE[/UPDATE]/SYMBOL commands.

    	Try extracting the maximum of valid records using:
    $CONVERT /STAT [/SHARE] /EXCEP=sysuaf.xxx SYSUAF.DAT SYSUAF.seq
    You can [carefully!] EDIT this sequential file with TPU (NOT with EDT)
    Now convert the sequential file back to indexed using an FDL. You
    can make a valid FDL file by creating a 'fresh', supported SYSUAF by
    running authorize such that it can not find the current one...
    create new file? Yes! ANAL/RMS/FDL on that file to get a valid FDL file.
    now:
    	$CONVER/STAT/FDL=SYSUAF/FAST[/SORT] SYSUAF.seq SYSUAF.new
    	$RENAME/log SYSUAF.new .DAT

    Good luck!