[DCN-TechOps] Monthly Downtime Report
John M. Crowell
jcrowell at dcn.davis.ca.us
Sat Oct 1 00:47:21 PDT 2005
Monthly System Availability Report: August 2005
Systems:
22Sep05 10:29-11:19 Power failure throughout DCN/Omsoft. (0:50)
(Bluejay flew into PGE transformer,
taking out entire block.)
wheel:
00:00 01-Oct-05 uptime= 8 days 12:41 hours
08Sep05 11:00-12:00 Wheel experiencing excessive system (0:03)
load. Moderately high web-server usage,
but not enough to cause this. Cannot
identify processes causing the load.
Rebooted at 12:00.
12Sep05 00:09-00:12 Wheel rebooted to try to solve (0:03)
sendmail slowdown.
12Sep05 00:12-01:03 Webserver on wheel down because reboot (0:51)
did not complete due to spoke problem.
(See below.)
22Sep05 10:50-11:19 Wheel shut down after battery backup (0:29)
exhausted during power outage
(See above.)
web:
Scheduled interruptions every Saturday midnight
for cycling log files. downtime ~3 min.
spoke:
00:00 01-Oct-05 uptime = 8 days 12:40 hours
12Sep05 19:30-01:03 Spoke frozen. Cause unknown. (5:30)
Possible DOS attack.
22Sep05 10:50-11:20 Spoke shut down after battery backup (0:30)
exhausted during power outage.
(See above.)
velocipede:
00:00 01-Oct-05 uptime = 8 days 11:57 hours
22Sep05 10:32-12:05 Velocipede shut down after battery (1:33)
backup exhausted during power outage.
(See above. Extensive file-system
repair required for reboot.
crank
00:00 01-Oct-05 uptime = 8 days 12:30 hours
22Sep05 10:40-11:38 Crank shut down after battery backup (0:58)
exhausted. Requires manual reboot.
Modems:
22Sep05 10:40-11:19 Modem pool's battery backup exhausted (0:39)
Network:
22Sep05 10:29-11:19 Redback switch, i.e. NOC hub, without (0:50)
battery backup. DCN LAN down. DSL down.
InterNet connectivity down.
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John M. Crowell Learn from the Past
Davis Community Network Live for Today
DCN Systems Manager Look to Tomorrow
netadmin at dcn.davis.ca.us Take a Nap This Afternoon
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jcrowell at mastersingers.org
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