Date: Wed, 28 Jun 1995 19:26:17 -0400 From: dennis@et.htp.com (dennis) To: inet-access@earth.com Cc: freebsd-hackers@freebsd.org Subject: Watchdog/Hard Reboot for BSD UN*X Message-ID: <199506282326.TAA22957@mail.htp.com>
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/******* NEW PRODUCT ANNOUNCEMENT FOR BSD UN*X ********/ Now available for BSD/OS and FreeBSD, the ET/WDT watchdog timer card. The ET/WDT watchdog timer can detect system failures and physically reboot your PC in seconds in an unattended environment, or can be used to physically reset your PC from a remote location, eliminating reboot hangs. The ET/WDT is an ISA card with a hardware timer that wires directly into the reset switch on the pc and can reset the PC just as if you pressed the reset button. The watchdog timer can detect system hangs in seconds instead of hours. A simple utility is provided which sets the watchdog timer to reboot the PC after X seconds (were X is 0 to 2500) if not notified before the timer expires. A driver supplied with the board uses an on-board interrupt which notifies the watchdog timer once per second that the system is alive. If you have source code to the operating system ( or other Emerging Technologies communications boards) you can enhance the function or disable the on-board interrupt and use other supplied mechanisms to notify the watchdog that the system is running properly. (i.e. IP traffic, Ethernet interface interrupts, etc). Additionally, running the utility with a timeout value of 0 physically boots the PC on demand. Availability: Immediate. Pricing. ET/WDT Stand-alone Watchdog Timer Board . Quantity 1 - $195. 2+ 169. 5+ $149. ET/5021 RS-232 56k-64k Com Board with on-board Watchdog Timer Quantity 1 - $495. ET/5021 V.35 56k-T1 Com Board with on-board Watchdog Timer Quantity 1 - $595. Emerging Technologies, Inc. (516) 271-4525 E-Mail: dennis@et..htp.com
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