Re: IFS Performance

["Urbanek, Marty" <Marty_Urbanek@xxxxxxxxxxxx>]

> ...
> So I think there is a basic flaw performance-wise in the IFS. I have no idea 
> why - *TYPE2 was supposed to help, but it is  > not enough for me to 
> recommend iSeries as a file server in a high-demand situation.

> Vern

I've noticed that, too, and wonder about it frequently. I wonder if there is 
something I am supposed to be doing to "tune" IFS or if, like you said, there 
is some basic performance flaw. 

NetServer shares seem very slow compared to other file servers, even on our 
best machine with plenty of everything. I suspect this is not due to NetServer 
itself but due to how long it takes it to access the data from IFS.

Or, just go into qshell and copy some files/directories around, or even better, 
delete some recursively (rm -rf blah). If you're working with a fairly complex 
directory structure, you will experience a long delay which you do not see on 
Windows or UNIX or even in z/OS USS.

Then I think, if IFS has such a hard time just copying and deleting files, how 
can it possibly do an acceptable job running major Java applications where the 
programs and the data make heavy use of stream files in the root and QOpenSys 
file systems?

I would love to hear from any IBMers who may have insight into this.

Thanks,
-Marty