QNX 4.25 40GB Disk Problem (?)

We install and ship QNX on an industrial product for sevral years now. With
our last systems, we have a new problem: After some system use (there is a
specific scenarion that can reproduce the problem), the system display the
error message “Too many files open” with every file access. Later, it
becomes worse and the system is completely locked (only ‘ping’ is
responding). Running ‘sin’ commands (when it’s still possible) does not show
any irregular file or process activity.
The problem consistently occur with a 40GB disk is installed (Seagate,
Barracuda). It consistently does not occur when a 20GB disk is installed
(either Seagate or Maxtor).
Does QNX have a problem with the disk size (We install V4.25, June 2000
product suite)? Did anybody encounter a similar problem?

Danny Gera
Orbotech LTD

Danny Gera <danny-g@orbotech.com> wrote:

We install and ship QNX on an industrial product for sevral years now. With
our last systems, we have a new problem: After some system use (there is a
specific scenarion that can reproduce the problem), the system display the
error message “Too many files open” with every file access. Later, it
becomes worse and the system is completely locked (only ‘ping’ is
responding). Running ‘sin’ commands (when it’s still possible) does not show
any irregular file or process activity.
The problem consistently occur with a 40GB disk is installed (Seagate,
Barracuda). It consistently does not occur when a 20GB disk is installed
(either Seagate or Maxtor).
Does QNX have a problem with the disk size (We install V4.25, June 2000
product suite)? Did anybody encounter a similar problem?

Change to:

/bin/Fsys
$ 1 Fsys -f4096 -H900000

in your /boot/build/xxx file…

Cheers,
-RK


[If replying via email, you’ll need to click on the URL that’s emailed to you
afterwards to forward the email to me – spam filters and all that]
Robert Krten, PDP minicomputer collector http://www.parse.com/~pdp8/

Robert,

I have set up the 40G hard disk SEAGATE MODEL ST340015A using the LBA mode
and Fsys.eide. The Qnx4 system recognises the hard disk as a 40Gb system. I
partitioned it as 4G (boot with <1024 cylinders) and 36G the balance. I have
no problems with the boot partition. Occoasionally I get “Too many files
open” when I access the 30Gb partition. I have no major need for such a
large partition. What is the largest useable partition size for Qnx4?

What do the parameters -f4096 and -H900000 do for Fsys. The docs that I have
give the -f as the max no of open control blocks. Default as set by Procs -p
command. There is nothing about the -H option

Many thabks
Padraig

“Robert Krten” <rk@parse.com> wrote in message
news:bit951$a75$1@inn.qnx.com

Danny Gera <> danny-g@orbotech.com> > wrote:
We install and ship QNX on an industrial product for sevral years now.
With
our last systems, we have a new problem: After some system use (there is
a
specific scenarion that can reproduce the problem), the system display
the
error message “Too many files open” with every file access. Later, it
becomes worse and the system is completely locked (only ‘ping’ is
responding). Running ‘sin’ commands (when it’s still possible) does not
show
any irregular file or process activity.
The problem consistently occur with a 40GB disk is installed (Seagate,
Barracuda). It consistently does not occur when a 20GB disk is installed
(either Seagate or Maxtor).
Does QNX have a problem with the disk size (We install V4.25, June 2000
product suite)? Did anybody encounter a similar problem?

Change to:

/bin/Fsys
$ 1 Fsys -f4096 -H900000

in your /boot/build/xxx file…

Cheers,
-RK


[If replying via email, you’ll need to click on the URL that’s emailed to
you
afterwards to forward the email to me – spam filters and all that]
Robert Krten, PDP minicomputer collector > http://www.parse.com/~pdp8/

Robert Krten <rk@parse.com> wrote:

Danny Gera <> danny-g@orbotech.com> > wrote:
The problem consistently occur with a 40GB disk is installed (Seagate,
Barracuda). It consistently does not occur when a 20GB disk is installed
/bin/Fsys
$ 1 Fsys -f4096 -H900000

Or, with the most recent Fsys, take the guesswork out with “-Hdisk40” …

I have a Fsys 4.24Y Apr 23 2002 which lists the H-option in the useage.
Werner Schweizer

“Padraig Furlong” <Padraig.Furlong@rte.ie> schrieb im Newsbeitrag
news:biv8md$n4f$1@inn.qnx.com

Robert,

I have set up the 40G hard disk SEAGATE MODEL ST340015A using the LBA mode
and Fsys.eide. The Qnx4 system recognises the hard disk as a 40Gb system.
I
partitioned it as 4G (boot with <1024 cylinders) and 36G the balance. I
have
no problems with the boot partition. Occoasionally I get “Too many files
open” when I access the 30Gb partition. I have no major need for such a
large partition. What is the largest useable partition size for Qnx4?

What do the parameters -f4096 and -H900000 do for Fsys. The docs that I
have
give the -f as the max no of open control blocks. Default as set by
Procs -p
command. There is nothing about the -H option

Many thabks
Padraig

“Robert Krten” <> rk@parse.com> > wrote in message
news:bit951$a75$> 1@inn.qnx.com> …
Danny Gera <> danny-g@orbotech.com> > wrote:
We install and ship QNX on an industrial product for sevral years now.
With
our last systems, we have a new problem: After some system use (there
is
a
specific scenarion that can reproduce the problem), the system display
the
error message “Too many files open” with every file access. Later, it
becomes worse and the system is completely locked (only ‘ping’ is
responding). Running ‘sin’ commands (when it’s still possible) does
not
show
any irregular file or process activity.
The problem consistently occur with a 40GB disk is installed (Seagate,
Barracuda). It consistently does not occur when a 20GB disk is
installed
(either Seagate or Maxtor).
Does QNX have a problem with the disk size (We install V4.25, June
2000
product suite)? Did anybody encounter a similar problem?

Change to:

/bin/Fsys
$ 1 Fsys -f4096 -H900000

in your /boot/build/xxx file…

Cheers,
-RK


[If replying via email, you’ll need to click on the URL that’s emailed
to
you
afterwards to forward the email to me – spam filters and all that]
Robert Krten, PDP minicomputer collector > http://www.parse.com/~pdp8/

Padraig Furlong <Padraig.Furlong@rte.ie> wrote:

PF > What do the parameters -f4096 and -H900000 do for Fsys. The docs that I have
PF > give the -f as the max no of open control blocks. Default as set by Procs -p
PF > command. There is nothing about the -H option

The -H option allocate a larger than normal buffer for some internal
work in Fsys. If there are many hard drives, or a few larger hard
drives you need to increase this size.

“Bill Caroselli” <qtps@earthlink.net> wrote in message
news:bj26hn$q1t$3@inn.qnx.com

Padraig Furlong <> Padraig.Furlong@rte.ie> > wrote:

PF > What do the parameters -f4096 and -H900000 do for Fsys. The docs that
I have
PF > give the -f as the max no of open control blocks. Default as set by
Procs -p
PF > command. There is nothing about the -H option

The -H option allocate a larger than normal buffer for some internal
work in Fsys. If there are many hard drives, or a few larger hard
drives you need to increase this size.

Many thanks for the info

Padraig