Why did this RENAME lose my files?

$ REN FTDAYBCK.JOU;* .JOU_SAVE
%RENAME-I-RENAMED, SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;9 renamed to SYS
$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU_SAVE;9
%RENAME-E-OPENIN, error opening SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;8
as input
-RMS-F-REENT, file could not be renamed and recovery failed; file has
been lost
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation
%RENAME-E-OPENIN, error opening SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;7
as input
-RMS-F-REENT, file could not be renamed and recovery failed; file has
been lost
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation
%RENAME-E-OPENIN, error opening SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;6
as input
-RMS-F-REENT, file could not be renamed and recovery failed; file has
been lost
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation
%RENAME-E-OPENIN, error opening SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;5
as input
-RMS-F-REENT, file could not be renamed and recovery failed; file has
been lost
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation
%RENAME-E-OPENIN, error opening SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;4
as input
-RMS-F-REENT, file could not be renamed and recovery failed; file has
been lost
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation
%RENAME-E-OPENIN, error opening SYS$SYSDEVICE:[FELDMAN]FTDAYBCK.JOU;3
as input
-RMS-F-REENT, file could not be renamed and recovery failed; file has
been lost
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation
%RENAME-E-OPENOUT, error opening SYS$SYSDEVICE:
[FELDMAN]FTDAYBCK.JOU_SAVE;1 as output
-RMS-E-ENT, ACP enter function failed
-SYSTEM-F-NOPRIV, insufficient privilege or object protection
violation

AEF
.

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