Re: Finding large objects that are blowing up the system ASP

[Vern Hamberg <vhamberg@xxxxxxxxxxxxxxx>]

James

That tooling gives a snapshot of disk space - it's a necessary tool.

But you describe a different problem - the on-the-fly problem of 
reduction in disk space. I once worked for Centerfield Technology and 
wrote a utility that monitored disk space using an MI function - very 
fast to determine if space was going down fast, even at a 5 second interval.

It was sold eventually to S4i, and I think they still have it - yeah, 
https://solutionsfori.com/dasd-plus/ - spike detection is mentioned on 
that page.

I believe Fortra has Robot/Space - same kind of thing.

And I think Alan Campin wrote something once - not sure if it's 
available. There's a fine venerable site, https://www.think400.dk/ - and 
the download link there has lots of stuff by Alan Campin - I didn't see 
the disk space one, though.

The one I wrote would detect growth, then when your setting was passed, 
it'd go looking for where, with fairly aggressive techniques as I knew 
them at the time. S4i might have made it better, Fortra in their tool, 
probably does well.

*Regards*

*Vern Hamberg*

IBM Champion 2025 <cid:part1.kiyCFph0.X5odzBjh@centurylink.net> CAAC 
(COMMON Americas Advisory Council) IBM Influencer 2023

On 4/23/2025 1:16 PM, James H. H. Lampert via MIDRANGE-L wrote:
> On 4/23/25 11:02 AM, Jack Woehr wrote:
> > https://www.ibm.com/support/pages/printing-disk-space-reports
>
> Thanks. I've now put it on my bookmarks toolbar under the name 
> "Finding large objects on an AS/400.
>
> I'll run the report once I've finished getting rid of a long-obsolete 
> Tomcat IFS directory. It's amazing just how much <expletive deleted> a 
> Tomcat server can accumulate.
>
> --
> JHHL