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MCU/Main Memory Overview
a.
Read the appropriate MEMLOG from disc.
b.
Scan the error logging array for errors.
c.
Update the error counter in the
MEMLOG record for each loca-
tion where an error occurred.
d.
Reset the error logging array to a no-error condition.
e.
Write the updated MEMLOG record to disc.
MEMLOGAN (MEMLOGAN.PUB.SYS)
is the utility that reads and inter-
prets the
error information logged and kept in the
MEMLOG file.
Because of the security placed on the MEMLOG file by the
system,
MEMLOGAN
can successfully run from an account other than PUB.SYS
if:
a.
The RELEASE
command was
entered for
MEMLOG
by the
system
manager, or
b.
The log on account has system manager capability.
MEMLOGAN will read MEMLOG and output its contents in a meaningful
manner.
The formal designator of the output device is "OUrr".
To
direct output
to the line printer,
the following file
equation
must be entered:
:FILE OUTiDEV=LP
There is no user dialogue with MEMLOGAN.
However, certain MEMLOG
file handling operations are available through the PARM parameter
of the RUN command.
The following PARM values are recognized
by
MEMLOGAN:
PARM=O'Causes the current contents of MEMLOG to be printed on the
output device.
The contents
of
the
file
will
not
be
changed.
This is the default PARM value.
PARM=l Causes the
current contents of
MEMLOG
to be printed
on
the
output device
after
which
the
file is reset
to a
no-error state.
All previously logged errors are
deleted
from the log file.
Note
When a system with error
correct-
ing
memory is initialized for the
first time or the memory
size
is
changed
to
cross the Sl2K bound-
ary, MEMLOGAN should be
run
with
PARM=l as soon as the system is up
and running.
This will ,ensure
a
clean
MEMLOG file and that subse-
quent error counts are valid.
6-19
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