Re: Appending to Informix backup
Posted in 1998
WF Software wrote:
> In article <3612DD0C.ED82A454@hotmail.com>, june_t@hotmail.com (June Tong)
> wrote:
>
> > Hmmm. I can't see any reason why ontape would open and close the tape
> > device several times on the restore. Last time I looked (admittedly,
> > quite a while ago), I don't think that was the case, and using a
> > no-rewind tape device would only bomb when you went to a second tape
> > (and that because the archive process closed and re-opened, not the
> > restore process). But I'm getting old, and my memory isn't what it used
> > to be. Hum hum hum, wonder how I'd test that...
> >
> I agree with Art that the tape will rewind. I've just tried it.
Why, so it does. (Had to find a system to test it on.) Wonder if that
changed when it started displaying the list of dbspaces. I don't know if
there's anyone out there as old as I am, but back in some older versions
(tbtape on 4.x/5.x, and I think ontape on 6.x), it didn't show the dbspaces
and ask you if you were sure. I still think those versions probably don't
bomb with no-rewind devices for a single tape. But what do I know. When you
get old, the first thing to go is ... umm... I forget. What was I talking
about? Oh yeah, now I'll have to find a 5.0 instance to test on - that
shouldn't be too hard :-)
> However, if a multi-tape backup has all the elements on the same tape (ie
> used a norewind device) one after the other the tape does restore - go
> figure that one.
Now that makes no sense at all. I don't see how that can be possible, if the
restore process closes the device and expects it to rewind.
June
--
june_t@hotmail.com
Lost in the wilds of Palo Alto, living on Peanut M&M's