3Com MSR 50 Series Configuration Manual page 774

774 C 52: FEP I
HAPTER NSTALLATION AND
c
C
ONFIGURATION
ttyp50/ptyp50 devices exist. Generally, ttyp and ptyp devices are present in pairs
and each pair shares the same device number.
# ls -l /dev/ttyp50 /dev/ptyp50
If pseudo terminals exist, the console displays the following information:
crw-rw-rw- 1 root
crw------- 1 bin
If not, you must create pseudo terminals. To do so, use the scoadmin program as
follows.
1 Launch scoadmin.
# scoadmin
2 Select [Hardware/Kernel Manager].
3 Select [Tune Parameters...].
4 Enter 9 to select [TTY and console configuration].
5 Change the value of "NSPTTYS: number of pseudo-ttys on system." to 256.
6 Compile the kernel and restart the server. Then, the maximum number of devices
becomes 256.
CAUTION: When the kernel is compiled, /etc/inittab is overwritten by
/etc/conf/cf.d/init.base. Therefore, back up /etc/inittab before creating a new
kernel.
Modifying the maximum number of files a process can open
By default, each SCO OpenServer Unix process can open up to 110 files. If a Unix
server is to be connected with more than 50 terminals, you are recommended to
change the number to 600. To do so, execute the following command:
# /etc/conf/cf.d/configure
Select 7 (User and group configuration), and then change the [maximum number
of open files per process] field to 600.
Modifying the maximum number of processes a user can open
By default, a SCO OpenServer Unix user can open up to 100 processes. If a Unix
server is to be connected with a number of terminals (usually more than 50), you
are recommended to change the number to 600. To do so, execute the following
command:
# /etc/conf/cf.d/configure
Select 7 (User and group configuration), and then change the [maximum number
of processes available to user] field to 600.
Validating the new configuration
After modifying system kernel parameters, you must follow the system prompts to
run ./link_unix to link to the system kernel again and then restart the system to
bring the changes into effect.
sys 59, 50 Aug
terminal 58, 50 Aug 15 16:24 /dev/ttyp50
6 18:44 /dev/ptyp50