Re: IFS limits

Then there's save/restore to consider as well.......

I agree with the premise that you want the IFS structure wide, not deep to avoid performance issues.

That said I have many customers with millions of objects in the IFS, all operating successfully with performance that's reasonable. Attempts to get them to move those objects to a Linux or AIX file system fall on deaf ears and result in dirty looks......

Jim Oberholtzer
Agile Technology Architects

On Apr 11, 2019, at 8:21 AM, Joe Pluta <joepluta@xxxxxxxxxxxxxxxxx> wrote:

I agree with that sentiment, John. The last time I had a situation where we had a large number of files in a directory, we started seeing various performance issues. Lists took much longer than simple linear math would have suggested, some utilities couldn't handle the number of files, various commands in QShell had problems, and so on.

Generally speaking, I prefer to limit the number of files to the low thousands. After that, I try to come up with a subdirectory management structure.

On 4/11/2019 10:12 AM, John Yeung wrote:
On Thu, Apr 11, 2019 at 10:08 AM Doug Englander
<denglander@xxxxxxxxxxxxxxxxxxxxxxxx> wrote:

We have one IFS folder with over 261,000 PDFs in it. I am wondering what the limit is so I can be proactive and avoid a problem.

In my opinion, quarter of a million objects in one directory is way,
way, way, way, way too many already. Obviously, it's best if you're
proactive right from the beginning. I have a rule of thumb: If I
stumble upon a directory and I have to wonder if it has too many files
in it, then it has too many files in it.

What counts as "too many" for my sensibilities is so far below any
hard limits that I keep forgetting that there can even BE hard limits,
other than total disk space.

John Y.

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