VxRail: Høy vSAN-ventetid og CRC-feil på nettverksnettverkskortstatistikk

Summary: Flere verter ser høye CRC-feil som fører til vSAN-ventetid.

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Symptoms

esxcli network nic stats get -n vmnic1

 host1
 NIC statistics for vmnic1:
 Receive packets dropped: 0
 Transmit packets dropped: 0
 Total receive errors: 216001
 Receive length errors: 0
 Receive over errors: 0
 Receive CRC errors: 216001
 Receive frame errors: 0

 host2
 NIC statistics for vmnic1:
 Receive packets dropped: 0
 Transmit packets dropped: 0
 Total receive errors: 283604
 Receive length errors: 0
 Receive over errors: 0
 Receive CRC errors: 283604
 Receive frame errors: 0

 host3
 NIC statistics for vmnic1:
 Receive packets dropped: 0
 Transmit packets dropped: 0
 Total receive errors: 0
 Receive length errors: 0
 Receive over errors: 0
 Receive CRC errors: 0
 Receive frame errors: 0

 host4
 NIC statistics for vmnic1:
 Receive packets dropped: 0
 Transmit packets dropped: 0
 Total receive errors: 170796
 Receive length errors: 0
 Receive over errors: 0
 Receive CRC errors: 170796

Cause

Høye CRC-feil er symptomer på lag 1-problemer. Det kan være en defekt kabel, SFP eller nettverksgrensesnittkort (NIC).

Statistikken ovenfor er en indikasjon på at host1, host2 og host4 mottok CRC (inngående) fra host3, og host3 kan være kilden til CRC-feilene som forårsaker vSAN-ytelsesproblemer.

Resolution

  1. Kjør kommandoen for å øke CRC-feilene:
watch esxcli network nic stats get -n=vmnic1 | grep "Receive CRC errors"
  1. Avslutt uplink til vmnic1:
esxcli network nic down -n vmnic1

Merk: Kontroller at det er redundans for oppkobling (for eksempel vmnic0, vmnic1) før du endrer koblingsstatusen til nedtilstand. På dette tidspunktet skal du ikke se noen økning i CRC-feil og ingen vSAN-ventetid.
 
  1. Erstatt SFP som er koblet til vSAN-uplink1, og endre opplinkstatusen til UP. Hvis SFP-utskiftningen ikke stoppet CRC-feilene, kan du også vurdere å skifte ut kabelen til kommunikasjonsforbindelsen.

Affected Products

VMWare Cloud on Dell EMC VxRail E560F, VMWare Cloud on Dell EMC VxRail E560N, VxRail 460 and 470 Nodes, VxRail Appliance Family, VxRail Appliance Series, VxRail G Series Nodes, VxRail E Series Nodes, VxRail E560 VCF, VxRail E560F VCF , VxRail E560N VCF ...

Products

VxRail E560, VxRail E560F, VxRail E560N, VxRail E660, VxRail E660F, VxRail E660N, VxRail E665, VxRail E665F, VxRail E665N, VxRail G560, VxRail G560 VCF, VxRail G560F, VxRail G560F VCF, VxRail P Series Nodes, VxRail P570, VxRail P570F, VxRail P580N , VxRail P670F, VxRail P670N, VxRail P675F, VxRail P675N, VxRail S Series Nodes, VxRail S570, VxRail S570 VCF, VxRail S670, VxRail Software, VxRail V470, VxRail V570, VxRail V570 VCF, VxRail V570F, VxRail V570F VCF, VXRAIL V670F, VxRail VD-4510C, VxRail VD-4520C, VxRail VE-660, VxRail VE-6615, VxRail VP-760, VxRail VP-7625, VxRail VS-760 ...
Article Properties
Article Number: 000182663
Article Type: Solution
Last Modified: 10 Sep 2025
Version:  7
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