charlie@ARI-HQ1 (02/18/86)
Several messages have appeared in this mailing list regarding the use of the /NOHIGHWATER qualifier for mounting disk volumes so as to improve performance under VMS version 4. The System Manager who considers taking this measure to improve the performance of his system should be aware, however, of the security implications of such an action. The high water marking serves to deter disk scavenging attempts. Therefore, turning it off can render sensitive data on the system subject to the possibility of unauthorized disclosure. See the Guide to VAX/VMX System Security, and understand thoroughly the implications of this action for your system, before contemplating using it. Charlie Abzug (Charlie@ARI-HQ1) Data Security Officer U.S. Army Research Institute ------