Periodically terminals stop responding Post: 302092334

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Operating Systems SCO Periodically terminals stop responding Post 302092334 by vpanag on Monday 9th of October 2006 02:59:40 AM

10-09-2006

Registered User

Periodically terminals stop responding

hi everybody, this is my first visit here.

i have a sco unixware 7.1 box. terminals are connected thru digi multiserial devices. some users are also connected over the lan from pc stations running terminal emulation programs.

in few last weeks periodically ( almost every other day ) happens the situation where:
- the users already connected are getting 'frozen'
- the users trying to login are able to type their username and password, they see the welcome text but no shell prompt is shown and no echo is displayed when they type some chars. On the other side the system seems to be running, because if they try to type 'exit' the session ends. this happens if 'normal users' are trying to login. root user can nicely login and normally work, except that when he types :
# shutdown -y -i0 -g0
.. to stop the system, he gets
UX:sh (/sbin/shutdown): ERROR: Cannot make pipe

.. so, i use ' init 0 ' to stop it and reboot
after rebooting the system works fine for couple days and so on .....

i have read the log files ( syslog, osmlog ) , no useful info there
i also have visited sco.com, but i have not found similar problems in their knowledge base.

thanks for attention

vpanag

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ql-set-cmd-timeout

ql-set-cmd-timeout(8)					       System Administration					     ql-set-cmd-timeout(8)

NAME

       ql-set-cmd-timeout - set the timeout on the devices connected to the QLogic FC HBA.

SYNOPSIS

       ql-set-cmd-timeout [OPTIONS]

DESCRIPTION

       QLogic Linux Set Device Timeout Utility

       This  utility allows you to set the timeout on the devices connected to the QLogic FC HBA.  This timeout value applies to the commands sent
       to the device. This can help when target devices take longer to execute a command, for example under heavy I/O. Setting	a  longer  timeout
       reduces the chance of the Linux SCSI mid-layer driver aborting the tasks after a timeout.

	      [DEFAULT]

	      Display timeout of devices connected to all HOSTs

	      [HOST]

	      Display timeout of devices connected to HOST

	      [HOST] [TARGET]

	      Display timeout of devices connected to a TARGET on HOST

	      [HOST] [TARGET] [TIMEOUT]

	      To set timeout on devices connected to a TARGET on HOST

       -h,  --help, ?
	      Prints this help message

       -i,  --interactive
	      Use this option to use the menu driven program

SEE ALSO

       ql-dynamic-tgt-lun-disc(8), ql-lun-state-online(8), ql-hba-snapshot(8)

Matthias Schmitz <;matthias@sigxcpu.org> 			    August 2008 					     ql-set-cmd-timeout(8)