having Vax 3800 with VMS 5.2 i have problem before with clustring with 2 vax machines i changed the network adapter now clustring solved , but still there is a problem with terminal consloe is called " instructore " whice is connected to the Vax macine through the CYX or modem when i type sh err the following error showed DEVICE ERR COUNT DATLB$TXA3 9 WHEN I SH TXA3/FULL it showed terminal TXA3 device type , is online , record oriented device carriage control device is busy pls any help or recomendation to solve this proble is appriciated :)

lodi2001, VAX/VMS Version 5.2 is VERY old (more than 10 years). You will find that a more current version has many improvements. The most recent version for VAX is 7.3. I do not understand what you mean by "instructore", can you please explain? On a VAX 3800, if I recall correctly, you may have the console cable plugged into the incorrect port. As a start, check which port the connector fits on (I do not have a panel diagram for the 3800 handy at this instant). - Bob Gezelter, http://www.rlgsc.com

thanx BOP for replying message . Actually the " instructor " is the graphic termianl wihch is connected to the Vax 3800 by RS232C Cable to the CYX module in vax machine . i bought DESQA-sa new (network adapter ) i changed the 6 DIP switches in the module to the ON position the error of DATLB$TXA3 reset and system boted up normaly and i could connect from the graphic terminal to the vax , but after sometimes i got error message " virtual timeout " memory dump error and losting the cluster between to vax machine . until now the clustring couldn't established between to machines . is there any settings for dip SWITCH in the DESQA-sa module to make standard network ? by the way i am using External cable standard connected to the DILNI hub for both A machine and B machine .

You have no installation instruction for the DESQA card ? Try a search on the HP web site to find one. Without that, You randomly configured the card by setting all DIP switches to ON ! And depending on the Qbus backplane type of Your Vax3800, there may be restrictions to the position of the Ethernet card on the bus: eventually the card has to be inserted before other cards like the serial interface card. If such configuration rules are violated, a system crash is likely the result.