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List:       juniper-nsp
Subject:    Re: [j-nsp] Juniper M20 does not clear "show chassis alarms"/"show
From:       Martin T <m4rtntns () gmail ! com>
Date:       2011-01-31 0:16:36
Message-ID: AANLkTinRi=qJra-iEQh3wON4ddsAHE0yDYFMEn_CeZN3 () mail ! gmail ! com
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It looks like if one turns power supply of M20 ON and then OFF(or
vice-versa) in less than 60s, then "show chassis alarms" and "show
system alarms" stay present and only restart of chassisd(or router
reboot) would help. This "After powering off a power supply, wait at
least 60 seconds before turning it back on. After powering on a power
supply, wait at least 60 seconds before turning it off." rule is
described here:
http://www.juniper.net/techpubs/hardware/m20/m20-hwguide/connectingac-power-to-the-router.html


Anyone else encountered this issue? In addition, 60s is rather long time..


2011/1/24 martin <m4rtin86@gmail.com>:
> Unfortunately this does not clear "show chassis alarms" or "show system alarms".
> 
> 
> 2011/1/22 Chris Cappuccio <chris@nmedia.net>:
> > remove power supply, reinsert?
> > 
> > martin [m4rtin86@gmail.com] wrote:
> > > Hi,
> > > sorry about cumbersome subject, at least it's informative :) However,
> > > has anyone seen an issue with Juniper M20 where alarms("show chassis
> > > alarms", "show system alarms") do not clear althought problem itself
> > > is not present any more? I have a Juniper M20 router(JUNOS 9.4R4.5),
> > > which has two AC PSU's(740-007311) installed. There were few short
> > > power outages with one power feed(first one ~6min, second one ~6min
> > > and third one ~30min) and finally :
> > > 
> > > Jan 19 07:21:11  M20 chassisd[1130]: CHASSISD_SNMP_TRAP6: SNMP trap
> > > generated: Power Supply OK (jnxContentsContainerIndex 2,
> > > jnxContentsL1Index 2, jnxContentsL2Index 0, jnxContentsL3Index 0,
> > > jnxContentsDescr Power Supply B, jnxOperatingState/Temp 2)
> > > 
> > > 
> > > "Power Supply A" is connected to other power-feed and was not affected
> > > at all. As you can see, according to log, "Power Supply B" is fine.
> > > "DC OK" light of "Power Supply B" is on and "show chassis environment
> > > " output indicates as well, that "Power Supply B" is fine:
> > > 
> > > Class Item                           Status     Measurement
> > > Power Power Supply A                 OK
> > > Power Supply B                 OK
> > > 
> > > 
> > > According to Juniper
> > > documentation(http://www.juniper.net/techpubs/software/junos/junos73/swcmdref73-basics-services/html/chassis-monitor18.html),
> > >  "You cannot clear the alarms for chassis components. Instead, you must
> > > remedy the cause of the alarm. When a chassis alarm is lit, it
> > > indicates that you are running the router in a manner that we do not
> > > recommend."
> > > 
> > > However, I still see following output if I execute "show chassis
> > > alarms" or "show system alarms":
> > > 
> > > user@M20> show chassis alarms
> > > 2 alarms currently active
> > > Alarm time               Class  Description
> > > 2011-01-19 06:12:44 UTC  Major  Power Supply B not providing power
> > > 2011-01-19 06:13:41 UTC  Major  Power Supply B fan failed
> > > 
> > > user@M20>
> > > 
> > > 
> > > I know, that rebooting the router would help, but what might cause
> > > such issue? Has anybody encountered something similar?
> > > _______________________________________________
> > > juniper-nsp mailing list juniper-nsp@puck.nether.net
> > > https://puck.nether.net/mailman/listinfo/juniper-nsp
> > 
> > --
> > Let food be thy medicine and medicine be thy food - Hippocrates
> > 
> 
> _______________________________________________
> juniper-nsp mailing list juniper-nsp@puck.nether.net
> https://puck.nether.net/mailman/listinfo/juniper-nsp
> 

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