S6720 restarts suddenly

Created: Sep 27, 2019 10:09:26Latest reply: Sep 27, 2019 10:14:29 91 3 1 1
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 S6720 restarts suddenly, what are the possible reasons?

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Popeye_Wang
Admin Created Sep 27, 2019 10:14:29 Helpful(0) Helpful(0)

Posted by Steelblue at 2019-09-27 10:12 < S6720>display reboot-infoSlot ID Times Reboot Type Reboot Time(DST) ========= ...
PWR Input Vol Low: A power module is in an input power outage or undervoltage condition.
PWR Input Vol Low Resume: A power module recovers from an input power outage or undervoltage condition.
It shows power input voltage low and it recovers after a few seconds. So I suggest you check the power supply and swap power module first.
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Popeye_Wang
Popeye_Wang Admin Created Sep 27, 2019 10:11:28 Helpful(0) Helpful(0)

The possible cause is that the power supply hardware is faulty.
You can check the restart information and whether hardware alarms are generated.
display reboot-info
display alarm urgent

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Steelblue
Steelblue Created Sep 27, 2019 10:12:09 Helpful(0) Helpful(0)

< S6720>display reboot-info

Slot ID Times Reboot Type Reboot Time(DST)
==================================================
0 1 MANUAL 2019/09/24 05:43:32
0 2 POWER 2019/09/24 05:37:58
0 3 POWER 2019/09/24 05:19:35
0 4 POWER 2019/09/24 04:57:05
0 5 POWER 2019/09/24 04:36:56
0 6 POWER 2018/04/26 11:11:57
0 7 POWER 2018/04/12 18:53:38
0 8 POWER 2018/03/30 15:17:09
0 9 POWER 2018/03/17 18:46:44
0 10 POWER 2018/03/16 13:13:29
0 11 POWER 2017/12/01 22:05:37
==================================================
Total 11

< S6720>display alarm urgent
Alarm Slot Date Time(DST) Location
---------------------------------------------------------------------------
Power normal 0 2019/09/24 05:51:11 Slot0
PWR Input Vol Low Resume0 2019/09/24 05:51:09 Slot 0PWR1
Powerabnormal 0 2019/09/24 05:47:25 Slot0
PWR Input Vol Low 0 2019/09/24 05:47:24 Slot 0PWR1
Powerabnormal 0 2019/09/24 05:38:01 Slot0
PWR Input Vol Low 0 2019/09/24 05:38:01 Slot 0PWR2
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Popeye_Wang
Popeye_Wang Admin Created Sep 27, 2019 10:14:29 Helpful(0) Helpful(0)

Posted by Steelblue at 2019-09-27 10:12 < S6720>display reboot-infoSlot ID Times Reboot Type Reboot Time(DST) ========= ...
PWR Input Vol Low: A power module is in an input power outage or undervoltage condition.
PWR Input Vol Low Resume: A power module recovers from an input power outage or undervoltage condition.
It shows power input voltage low and it recovers after a few seconds. So I suggest you check the power supply and swap power module first.
  • x
  • convention:

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