> -----Original Message----- > From: The IBM z/VM Operating System > [mailto:[EMAIL PROTECTED] On Behalf Of Thomas Kern > Sent: Friday, July 18, 2008 9:38 AM > To: IBMVM@LISTSERV.UARK.EDU > Subject: Data Security Erase utility for z/VM tapes > > I need to securely erase a batch of tapes in a way that they > are still = > > useable as scratch tapes. There used to be a TAPERASE program > from VMSHAR= > E > but that was pre-z and maybe pre-xa. Does anyone have such a > utility that= > > is not part of a for-sale product? > > /Tom Kern >
IIRC, you can erase a tape using a specific CCW called, cleverly, DSE. If you can write a small CMS program which uses this CCW, then you can ATTACH the drive to your CMS user, mount the tape, then run the program. For a 3490E drive, this is a CCW opcode of x'97'. You need to use command chaining to put a NOP command in the CCW string after this one. I don't have such a program. I also don't have access to a z/VM system. If you have access to a z/OS system, then most tape management software has this facility. With CA-1, this is the CTSDEU program. -- John McKown Senior Systems Programmer HealthMarkets Keeping the Promise of Affordable Coverage Administrative Services Group Information Technology The information contained in this e-mail message may be privileged and/or confidential. It is for intended addressee(s) only. If you are not the intended recipient, you are hereby notified that any disclosure, reproduction, distribution or other use of this communication is strictly prohibited and could, in certain circumstances, be a criminal offense. If you have received this e-mail in error, please notify the sender by reply and delete this message without copying or disclosing it.