Some VTL's (a.o. TS77xx) have a backend tapelibrary with physical tapes. They need to be erased too. When we dismissed our STK tapelibrary, we hired a degausser to erase the data on the tapes.
Kees. > -----Original Message----- > From: IBM Mainframe Discussion List [mailto:[email protected]] On > Behalf Of Brian Westerman > Sent: 14 September, 2018 9:08 > To: [email protected] > Subject: Re: Yet Another Mainframe z10 Bites the Dust! > > Depending on the VTL, you should be able to access the underlaying > operating system (normally some form of unix) via the command line or > terminal access and simply reformat the data partitions on the hard > drive(s). I know this can be done on Optica, and Luminex and IBM's > TS77xx, I am assuming that all other vendors allow the same process. > They would be silly not to. > > The tapes are actually just disk files on regular hard drives or > partitions, and they can be formatted just like any other hard drives. > Typically, the vendors have their OS on one drive (or partition) and > your data is on one or more other partitions (or completely other > drives). You can securely format them with the native (normally unix) > format commands, and you can format them to some other disk type if it > makes you happy, then format them back to the base type so they can be > used by whoever you sell the box to. > > The entire format process takes about 10 minutes per TB to do a complete > format that writes zeros multiple times to each byte. You can quick > format if you want but I don't think that will give you the security you > are looking for. So, it will run a while, so just start it and go home > for a while. > > Brian > > > > On Thu, 13 Sep 2018 22:16:55 -0400, Doug <[email protected]> wrote: > > >Maybe I missed a post but, what ‘VTL’ are you running? > >IBM has a feature code that a CE can order that will do a data erase on > the library, cache and disk. The physical backend tapes would need to be > certified destroyed. Iron Mountain can do that for you. > >Just my 2 cents > >Doug > > > >. > > > >On Sep 13, 2018, at 17:32, Mike Schwab <[email protected]> wrote: > > > >Once all the tapes are deleted by writing to all 50K, you just have to > >write as many volumes as needed to fill VTS. The large the dataset, > >the fewer the volumes. > >On Thu, Sep 13, 2018 at 2:52 PM George Rodriguez > ><[email protected]> wrote: > >> > >> That's a big order. There are 50,000 virtual tapes defined in the > system... > >> WOW! > >> > >> *George Rodriguez* > >> > >> *Specialist II - IT Security* > >> *PX - 47652* > >> *(561) 357-7652 (office)* > >> *(954) 415-7586 (mobile)* > >> *School District of Palm Beach County* > >> *3348 Forest Hill Blvd.* > >> *Room B-332* > >> *West Palm Beach, FL. 33406-5869* > >> *Florida's Only A-Rated Urban District* > >> > >> > >>> On Thu, Sep 13, 2018 at 2:29 PM Mike Schwab > <[email protected]> wrote: > >>> > >>> Overwrite each tape with a one track dataset of low values. > >>> Then overwrite tapes with a very large dataset of low values until > VTS is > >>> full. > >>> Repeat one track / large datasets with high values and b'01010101'. > >>> > >>> Repeat the 3 cycles until desired number of overwrites are > accomplished. > >>> > >>> On Thu, Sep 13, 2018 at 10:16 AM George Rodriguez > >>> <[email protected]> wrote: > >>>> > >>>> The School District of Palm Beach County is finally shutting down > the IBM > >>>> z10 and all its components. > >>>> > >>>> I was wondering if any member the listserve can help me with > "wiping out" > >>>> out VTL. Any help will be greatly appreciated. > >>>> > >>>> Thanks! > >>>> > >>>> *George Rodriguez* > >>>> > >>>> *Specialist II - IT Security* > >>>> *PX - 47652* > >>>> *(561) 357-7652 (office)* > >>>> *(954) 415-7586 (mobile)* > >>>> *School District of Palm Beach County* > >>>> *3348 Forest Hill Blvd.* > >>>> *Room B-332* > >>>> *West Palm Beach, FL. 33406-5869* > >>>> *Florida's Only A-Rated Urban District* > >>>> > >>>> -- > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> *Disclaimer: *Under Florida law, e-mail addresses are public > records. > >>>> If you do not want your e-mail address released in response to a > public > >>>> records request, do not send electronic mail to this entity. > Instead, > >>>> contact this office by phone or in writing. > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> > >>>> ------------------------------------------------------------------- > --- > >>>> For IBM-MAIN subscribe / signoff / archive access instructions, > >>>> send email to [email protected] with the message: INFO IBM- > MAIN > >>> > >>> > >>> > >>> -- > >>> Mike A Schwab, Springfield IL USA > >>> Where do Forest Rangers go to get away from it all? > >>> > >>> -------------------------------------------------------------------- > -- > >>> For IBM-MAIN subscribe / signoff / archive access instructions, > >>> send email to [email protected] with the message: INFO IBM- > MAIN > >>> > >> > >> -- > >> > >> > >> > >> > >> > >> > >> *Disclaimer: *Under Florida law, e-mail addresses are public records. > >> If you do not want your e-mail address released in response to a > public > >> records request, do not send electronic mail to this entity. 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