The value of tmnxLogIdMaxMemorySize specifies the amount of memory to
allocate for this log. This object is valid only when
tmnxLogIdDestination has a value of 'memory' or 'snmpTraps'.
If the value tmnxLogIdDestination is neither 'memory' nor
'snmpTraps' a read of this object will return zero (0).
Once a memory size has been specified and the log created, any
attempt to modify this object will fail with an INCONSISTENT
VALUE error.