- Also, I could always point to the tape rack and tell the auditors: "You want the data from 20 years ago? There it is."
But less chance that they could actually read the data. On Tue, May 22, 2018 at 6:34 PM, Tony Thigpen <[email protected]> wrote: > Timothy, > > The biggest problem is that physical tape, unlike dasd, has been the > primary method of data archive and data transport since it was created. > (And that includes paper tape.) While tape virtualization is great for > internal tapes, off-site archival now requires an expensive duplicate of > the primary VTL. And, as machine age and are replaced, historical archival > have to be converted to the new equipment. > > Also, I could always point to the tape rack and tell the auditors: "You > want the data from 20 years ago? There it is." > > Tony Thigpen > > > Timothy Sipples wrote on 05/22/2018 02:04 AM: > >> Radoslaw Skorupka wrote: >> >>> It is really nice sales pitch, but *technically* IBM it is no longer >>> possible to write directly to a tape volume from z/OS. >>> >> >> First of all, it's not a sales pitch. I don't do sales pitches very well. >> >> Second, it's also no longer possible to "write directly" to disk drives. >> *All* mainframe-attached storage -- flash/SSD, disk, and now tape -- is >> highly virtualized, with intelligent controllers equipped with caches. >> >> Why is this progress a problem? And it's a very long arc of progress, not >> at all sudden. As I've carefully and accurately documented, there was >> nearly 19 years of product overlap as IBM tape made the transition to >> virtualized-physical. >> >> Finally, "ask your friendly IBM representative" about IBM TS1155/TS4500 >> attachment to your IBM TS7700. I have no inside information on that, but I >> do pay some attention to IBM's past practices. What I see is that, for >> several generations of tape drives stretching back many years, IBM has >> waited some period of time before certifying z/OS use of that new tape >> drive/tape media/density. I suspect that's because IBM is just being that >> extra bit careful with your most precious data (such as most of the >> world's >> most important financial records) and its long-term retention needs, but >> ask. >> >> ------------------------------------------------------------ >> -------------------------------------------- >> Timothy Sipples >> IT Architect Executive, Industry Solutions, IBM Z & LinuxONE, >> Multi-Geography >> E-Mail: [email protected] >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, >> send email to [email protected] with the message: INFO IBM-MAIN >> >> >> > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN > ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
