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クラスタネットワークパケット損失アラート

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環境

  • NetApp ONTAP 9.16.1P7 (クラスターモード)
  • FAS9000シリーズ
  • クラスター ネットワーク スイッチ

問題

クラスターは、クラスターLIF間のパケット損失に関連する断続的なアラートを報告しました。これには以下が含まれます:

[vifmgr.cluscheck.droppedlarge:alert]: Partial packet loss when pinging from cluster LIF Node1_clus2 (node 1) to cluster LIF Node1_clus1 (node 2).
[vifmgr.cluscheck.droppedall:alert]: Total packet loss when pinging from cluster LIF Node1_clus2 (node 1) to cluster LIF Node1_clus1 (node 2).
[vifmgr.cluscheck.droppednone:notice]: No packet loss when pinging from cluster LIF Node1_clus2
(node 1) to cluster LIF Node1_clus1 (node 2).

Sw1:
Ethernet1/XX
transceiver is present
type is QSFP-40G-CSR4
name is CISCO-FINISAR
part number is FTL410QD4C-C1
revision is A
serial number is FIW253301AR
nominal bitrate is 10300 MBit/sec per channel
Link length supported for 50/125um OM2 fiber is 82 m
Link length supported for 50/125um OM3 fiber is 300 m
cisco id is 13
cisco extended id number is 16
cisco part number is 10-2837-03
cisco product id is QSFP-40G-CSR4
cisco version id is V03

Lane Number:1 Network Lane
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 29.69 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.10 V
Current 7.55 mA 15.00 mA 2.00 mA 14.00 mA 3.00 mA
Tx Power -1.48 dBm 2.99 dBm -11.30 dBm 0.00 dBm -7.30 dBm
Rx Power -10.79 dBm - 2.99 dBm -13.90 dBm 0.00 dBm -9.90 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Lane Number:2 Network Lane
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 29.69 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.10 V
Current 7.36 mA 15.00 mA 2.00 mA 14.00 mA 3.00 mA
Tx Power -2.07 dBm 2.99 dBm -11.30 dBm 0.00 dBm -7.30 dBm
Rx Power -11.85 dBm - 2.99 dBm -13.90 dBm 0.00 dBm -9.90 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Lane Number:3 Network Lane
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 29.69 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.10 V
Current 7.68 mA 15.00 mA 2.00 mA 14.00 mA 3.00 mA
Tx Power -2.15 dBm 2.99 dBm -11.30 dBm 0.00 dBm -7.30 dBm
Rx Power -10.60 dBm - 2.99 dBm -13.90 dBm 0.00 dBm -9.90 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------
Note: ++ high-alarm; + high-warning; -- low-alarm; - low-warning

Lane Number:4 Network Lane
SFP Detail Diagnostics Information (internal calibration)
----------------------------------------------------------------------------
Current Alarms Warnings
Measurement High Low High Low
----------------------------------------------------------------------------
Temperature 29.69 C 75.00 C -5.00 C 70.00 C 0.00 C
Voltage 3.30 V 3.63 V 2.97 V 3.46 V 3.10 V
Current 7.48 mA 15.00 mA 2.00 mA 14.00 mA 3.00 mA
Tx Power -1.99 dBm 2.99 dBm -11.30 dBm 0.00 dBm -7.30 dBm
Rx Power -10.55 dBm - 2.99 dBm -13.90 dBm 0.00 dBm -9.90 dBm
Transmit Fault Count = 0
----------------------------------------------------------------------------

クラスタポートの統計情報ではエラーはゼロでしたが、スイッチインターフェースの診断結果では、sw1 の ISL ポート Ethernet1/xx および port-channel1 で入力エラーが発生し、複数のノードのポートに接続されているインターフェースで出力エラーが発生していることが示されました。

光学診断の結果、あるスイッチのEthernet1/xxにおける受信光パワーが低く、警告閾値に近いことが判明しました。

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