Re: CHKIN/CHKOUT

[Paul Roy <paul.roy@xxxxxxx>]

from my memories.. 
The possibility to use virtual disk appeared in S/38 (and S/36)   was part 
of S/3X PC support and the first versions of PCS/AS400 
 
in AS/400 (I think it was already in the first release) there were Folders 
and Documents Library Objects stored in the library QDOC and mainly used 
by Office/400
This was a Hierarchical File System like optical disks... 
I do not remember there was a possibility to use checkin-checkout with 
folders, this was done by applications like WAF/ImagePlus. 

When the IFS appeared with V3R.1, QDLS was the new name of the file system 
to the DLO's ....  it came with chkin/chkout... 

IMHO, CHKIN/CHKOUT commands are not old stuff. They are very useful in 
document management (version control) applications. 
using those command to check the existence of an object is certainly not a 
good idea... 

KR
Paul








From:   DrFranken <midrange@xxxxxxxxxxxx>
To:     Midrange Systems Technical Discussion <midrange-l@xxxxxxxxxxxx>, 
Evan Harris <auctionitis@xxxxxxxxx>
Date:   04/12/2017 23:46
Subject:        Re: CHKIN/CHKOUT
Sent by:        "MIDRANGE-L" <midrange-l-bounces@xxxxxxxxxxxx>



Yes QDLS and QSYS.LIB and QNTC and friends appears with 3.1 which is 
when the entire IFS made it's debut. CHKOUT and CHKIN appeared at that 
time.

Prior to this the STUFF in QDLS was in something else that I can't 
recall the name of and as I recall was limited to a fairly minimal size 
as we tried to use them to back up PCs at one point. 32MB Maybe? (It 
certainly wasn't GBs as we had only 600 MB Total disk!!!

         - Larry "DrFranken" Bolhuis

www.Frankeni.com
www.iDevCloud.com - Personal Development IBM i timeshare service.
www.iInTheCloud.com - Commercial IBM i Cloud Hosting.

On 12/4/2017 3:56 PM, Evan Harris wrote:
> I think QDLS came into being as part of V3R1; I don't remember it on the
> S/38 - but I do remember those weird virtual disks you got for 
transferring
> under PC Support/38.
>
> On Tue, Dec 5, 2017 at 9:45 AM, David Gibbs <david@xxxxxxxxxxxx> wrote:
>
> > On 12/1/2017 9:19 PM, Jim Oberholtzer wrote:
> >
> > > Those commands are hold overs from the System/38 days.  Not of much
> > > use anymore......
> >
> > S/38?  Are you sure?
> >
> > I'm pretty sure that S/38 didn't have IFS.
> >
> > Did the S/38 have QDLS?
> >
> > david
> >
> >
> > --
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