[j-nsp] Power Supply problems
MPuras at solunet.com
MPuras at solunet.com
Fri May 30 12:19:57 EDT 2003
Hi Edson,
I have had numerous M20 chassis with this issue and in all cases it required
an RMA. The issue with the fan failures is handled a bit different
depending on the type of power supply that you have (as I have been
explained)
If you have a DC power supply and the M20 backplane has either one of these
revision numbers:
Backplane REV 02 710-002334
Backplane REV 08 710-001517
Then it will require that you change out the backplane of the M20 in order
to correct this issue. Luckily for me, I have only had AC. In any case, if
you have DC and you are getting the fan failure errors notifications and you
have the 2 revisions above then you need to replace the backplane and have
what is called ECO-02175 applied to it to fix it. There may be more
revisions affected so you may want to go ahead an open a case with JTAC and
have them look into it.
If you have AC power supplies and you are getting the fan failures
notifications then you need to RMA the power supply. Chances are that you
don't have a fan failure (if you look at the fans they are all spinning) but
my guess on this is that the sensors are malfunctionig although I have not
been told what exactly causes the fan failure notifications. I just know
that RMAing the power supplies fixed the issue.
Thanks,
Mario Puras
SoluNet Technical Support
Mailto: mpuras at solunet.com
Direct: (321) 309-1410
888.449.5766 (USA) / 888.SOLUNET (Canada)
-----Original Message-----
From: Edson Cardoso [mailto:ecardoso at qos.com.br]
Sent: Friday, May 30, 2003 11:08 AM
To: juniper-nsp at puck.nether.net
Subject: [j-nsp] Power Supply problems
Importance: High
Hi all,
I have a M20 and it's generating the error below in log file:
admin at core1-re0.poa> show chassis alarms
Alarm time Class Description
2003-05-25 08:31:05 BRT Major Power Supply B fan failed
I heard that kind of error is quite normal nowadays.....
Is this some kind of "manufacture" problem ??
Is it possible to replace only fans without send PS for RMA ??
Tnks
Edson R. Cardoso
Professional & Educational Services
ecardoso at qos.com.br <mailto:ecardoso at qos.com.br>
tel 55 11 3704 0422
fax 55 11 3704 0499
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