rcmd: primary connection shut down

[Manshoefer]

We have about 7 SCO Unix Printserver with unispool. to 6 Servers it possible to connect with, for example: remsh servername "echo". One server makes problems. If I type 5 times the same command, it works approx. 2 times and in 3 cases is the error message rmcd: primary connection shut down. It doesnt work since we have changed the connection between this server. It changes from point to point to ip backbone. The remsh command works in this case remsh servername without "command" behind. Who has seen this problem?

[eran maor]

Hi

you need to change this params
three kernel parameters regarding shared memory:

parameters before after
----------------------------------------------------
maxssize 0x200000 0x800000
shmmni 100 200
shmseg 12 120

saw a few time that this help .

remeber taht you need to config the kernel again and boot the system

[Manshoefer]

Thanks eran,
i checked the Parameters on HPUX System, the config is shmmni 256
shmseg 200 and maxssize ist not set. Is not so easy to change the Kernelparametes, bcause it is an Poduktionsystem. I have made the connection remsh servername "echo" from another System, the result is the same, somtimes it works and somtimes not. The Problem is, that we have many scripts with this command. For this spezial SCO Server the scripts doesnt work. I cant find the Parameters in SCO Unix.

Regards

Peter