RE: Using DVD-RAM drive

[Vernon Hamberg <vhamberg@xxxxxxxxxxx>]

Charles

Yes, I have used it. I used it in C for a product enhancement I worked on 
at my previous job. The complexity of that was, I needed to make sure 
things fit on a CD, so I had to generate the object list completely - no 
generics. If you use the *ALL idea, you might be able to use a fixed layout 
and be in fairly nice shape.

Give me a call, if you want, at 952 898-3038 and ask for me. Or we can 
exchange emails, although I might be slower in responding by email.

Regards
Vern

At 07:36 AM 2/3/2005, you wrote:
> Vern,
>
> Thanks!  I took a look at it and think it might be the answer I'm looking for.
>
> Doesn't look like the easiest API to use.  Have you actually used it?
>
> Thanks,
>
> Charles Wilt
> iSeries Systems Administrator / Developer
> Mitsubishi Electric Automotive America
> ph: 513-573-4343
> fax: 513-398-1121
>
>
> > -----Original Message-----
> > From: midrange-l-bounces+cwilt=meaa.mea.com@xxxxxxxxxxxx
> > [mailto:midrange-l-bounces+cwilt=meaa.mea.com@xxxxxxxxxxxx]On
> > Behalf Of
> > vhamberg@xxxxxxxxxxx
> > Sent: Wednesday, February 02, 2005 5:59 PM
> > To: Midrange Systems Technical Discussion
> > Subject: RE: Using DVD-RAM drive
> >
> >
> > Well, to mess things up a bit, there is an API at V5R2, the
> > QSRSAVO API, that can use all the compression options. It is
> > equivalent to SAVOBJ, without the 300-object specification
> > limit - you have to use a user space. So it's not the
> > prettiest, but I think there are generic ways to use it.
> > There is no SAVLIB equivalent - but SAVLIB basically just
> > saves the library object itself along with all its objects.
> >
> > Vern
> > -------------- Original message --------------
> >
> > > Just an update...
> > >
> > > I opened a PMR with IBM to get this question answered.
> > >
> > > Apparently, though no mention of it is in the v5r2 docs or
> > help text, the v5r2
> > > SAVLIB command works like the v5r3 version. Specifically,
> > when CPRDTA(*YES) is
> > > specified, "Low software compression is used for all
> > devices except optical DVD,
> > > which uses medium software compression."
> > >
> > > Too bad v5r2 doesn't support the CPRDTA(*LOW | *MEDIUM |
> > *HIGH) options that
> > > v5r3 does.
> > >
> > > So I don't know that this DVD-RAM is going to be useful the
> > way we intended,
> > > till we get to v5r3 and can take advantage of either the
> > new compression options
> > > and/or the writable virtual optical support.
> > >
> > >
> > > Charles Wilt
> > > iSeries Systems Administrator / Developer
> > > Mitsubishi Electric Automotive America
> > > ph: 513-573-4343
> > > fax: 513-398-1121
> > >
> > >
> > > > -----Original Message-----
> > > > From: midrange-l-bounces@xxxxxxxxxxxx
> > > > [mailto:midrange-l-bounces@xxxxxxxxxxxx]On Behalf Of
> > Wilt, Charles
> > > > Sent: Wednesday, February 02, 2005 9:16 AM
> > > > To: Midrange Systems Technical Discussion
> > > > Subject: RE: Using DVD-RAM drive
> > > >
> > > >
> > > > Vern,
> > > >
> > > > I've looked at the help.
> > > >
> > > > Doesn't explain why DTACPR(*YES) gives two different ratios
> > > > depending on rather you are going to a save file or the
> > > > DVD-RAM drive. As you and I have both mentioned the DVD-RAM
> > > > drive doesn't have any built-in hardware compression/compaction.
> > > >
> > > > Thus, in both cases, it is only OS/400 doing the compression.
> > > >
> > > > Why then does the 3.27GB library end up at 795 MB when SAVLIB
> > > > goes directly to the DVD-RAM and 2.14GB when SAVLIB goes to
> > > > the save file??
> > > >
> > > > Charles Wilt
> > > > iSeries Systems Administrator / Developer
> > > > Mitsubishi Electric Automotive America
> > > > ph: 513-573-4343
> > > > fax: 513-398-1121
> > > >
> > > >
> > >
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