Dell Unity: CAVA-serveren ble frakoblet og gjenopprettet periodevis

Summary: CAVA-serveren ble frakoblet og gjenopprettet i perioder: "Viruskontrollserveren xx.xx.xx.xx har fått en feil og er ikke lenger i drift. (Feil: ERROR_AUTH 64)" :: Category=User Component=DART_VC "Viruskontrollserver xx.xx.xx.xx er online." :: Kategori = Brukerkomponent = DART_VC. ...

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Symptoms

Problemet oppstod på Unity-kode 4.4.0.1536311042 og Windows Server 2016.

Problembeskrivelse:

  1. Kunden konfigurerte CAVA, fikk de under feilen periodisk at CAVA-serveren gikk offline og kom tilbake på nettet om noen sekunder.
    Du ser følgende feilpålogginger i EMCSystemLogFile.log

    "2018-12-28T02:18:22.331Z" "n1988006_spa" "Kittyhawk_safe" "26056" "unix/spa/root" "ERROR" "13:10510021" :: "The virus checker server xx.xx.xx.xx has encountered an error and is no longer operational.(Error: ERROR_AUTH 64)" :: Category=User Component=DART_VC
"2018-12-28T02:18:41.486Z" "n1988006_spa" "Kittyhawk_safe" "26056" "unix/spa/root" "NOTICE" "13:1051001d" :: "Virus checker server xx.xx.xx.xx is online." :: Category=User Component=DART_VC
"2018-12-28T02:35:42.361Z" "n1988006_spa" "Kittyhawk_safe" "26056" "unix/spa/root" "ERROR" "13:10510021" :: "The virus checker server xx.xx.xx.xx has encountered an error and is no longer operational.(Error: ERROR_AUTH 64)" :: Category=User Component=DART_VC
"2018-12-28T02:35:51.678Z" "n1988006_spa" "Kittyhawk_safe" "26056" "unix/spa/root" "NOTICE" "13:1051001d" :: "Virus checker server xx.xx.xx.xx is online." :: Category=User

    De samme feilmeldingene ble også rapportert i c4_safe_ktrace.log som:

    2018/12/28-21:32:25.865594 115K     7F86FEB3E709     sade:VC: 3:33:[Rick]  The virus checker server 160.46.85.196 has encountered an error and is no longer operational.(Error: ERROR_AUT
2018/12/28-21:32:25.865596    0     7F86FEB3E709     sade:VC: 3:33:[Rick]  H 64)
2018/12/28-21:32:25.865617   19     7F8790D83702     sade:SOCK_STREAM: 3:[core]  T_DISCON_REQ: (fd=0x1a0, NS=0) ShutdownStream() request UNSUPPORTED!
2018/12/28-21:32:25.865622    4     7F8790D83702     sade:SOCK_STREAM: 3:[core]  T_DISCON_REQ: (fd=0x1a0, NS=0)  Handling as DisconnectCloseStream()!
--
2018/12/28-21:32:53.272520    0     7FC1D8ADC70A      std:PSMSYS:PSMSYS:psmDataAreaClose(1:13): PENDED...
2018/12/28-21:32:55.127022 1.8M     7F86FEB3E702     sade:VC: 5:29:[Rick]  Virus checker server 160.46.85.196 is online.
2018/12/28-21:32:55.128201 1177     7F8790DC7704     sade:SOCK_STREAM: 3:[core]  T_DISCON_REQ: (fd=0x1cb, NS=0) ShutdownStream() request UNSUPPORTED!
2018/12/28-21:32:55.128206    3     7F8790DC7704     sade:SOCK_STREAM: 3:[core]  T_DISCON_REQ: (fd=0x1cb, NS=0)  Handling as DisconnectCloseStream()!

  2. Feilen skjedde tilfeldig uten noe bestemt mønster. Det ser ut til at CAVA-tjenesten ikke påvirkes.

  3. KB#462457 ble fulgt opp, men vi så ingen tidsskjevhet mellom CAVA-server/Unity/Windows DC-server.

  4. Nettverksspor viser at CAVA-serveren sendte Ioctl FSCTL_VALIDATE_NEGOTIATE_INFO forespørselen, men Unity svarte ikke og koblet fra TCP-tilkoblingen.
    Da problemet oppstod, sendte CAVA-serveren en FSCTL_VALIDATE_NEGOTIATE_INFO Ioctl-forespørsel, men Unity svarte ikke og fullførte tilkoblingen.

    # Godt eksempel

    5817    0.433916    CAVA_IP    CIFS_IP    SMB2    156    Tree Connect Request Tree: \\rick\CHECK$
5820    0.433983    CIFS_IP     CAVA_IP    SMB2    138    Tree Connect Response
5823    0.434164    CAVA_IP    CIFS_IP    SMB2    212    Ioctl Request FSCTL_VALIDATE_NEGOTIATE_INFO
5826    0.434217    CIFS_IP     CAVA_IP    SMB2    194    Ioctl Response FSCTL_VALIDATE_NEGOTIATE_INFO  <=========== good case

    # Bad case eksempel

    1806    0.096779    CAVA_IP    CIFS_IP    SMB2    156    Tree Connect Request Tree: \\rick\CHECK$
1807    0.096854    CIFS_IP     CAVA_IP    SMB2    138    Tree Connect Response
1818    0.097124    CAVA_IP    CIFS_IP    SMB2    212    Ioctl Request FSCTL_VALIDATE_NEGOTIATE_INFO
1820    0.097200    CIFS_IP     CAVA_IP    TCP    54    445   52006 [FIN, ACK] Seq=85 Ack=261 Win=304 Len=0   <=========== bad case

  5. Dette problemet vil påvirke CIFS-datakopiering som å bruke emcopy til å prøve å overføre data fra VNX til Unity.
    De kjører flere kopier samtidig, og periodisk forskjellige mislykkes hver gang med feilen.

    Client OS : Microsoft (build 9200)
TH000 : 02:28:08 : ERROR (53) : unable get server info from \\cifsserver.exmaple.net

 

Cause

Dette er et problem, siden Unity må validere informasjonen med den første tilkoblingen, ikke med den bindende tilkoblingen. Og det forårsaker kundeproblemer.

 

Resolution

Dette er problemet bare med SMB versjon 3.0.2 selv om de bytter til 3.1 eller 2.1 det fungerer. Og selv i 3.0.2 har de en løsning.

Omgåelse av problemet: Dislabe Multikanal på Windows Server eller CAVA-server

Kjør PowerShell som administrator og deretter:

PS C:\windows\system32> Get-SmbClientConfiguration


ConnectionCountPerRssNetworkInterface : 4
DirectoryCacheEntriesMax              : 16
DirectoryCacheEntrySizeMax            : 65536
DirectoryCacheLifetime                : 10
DormantFileLimit                      : 1023
EnableBandwidthThrottling             : True
EnableByteRangeLockingOnReadOnlyFiles : True
EnableInsecureGuestLogons             : False
EnableLargeMtu                        : True
EnableLoadBalanceScaleOut             : True
EnableMultiChannel                    : True
EnableSecuritySignature               : True
ExtendedSessionTimeout                : 1000
FileInfoCacheEntriesMax               : 64
FileInfoCacheLifetime                 : 10
FileNotFoundCacheEntriesMax           : 128
FileNotFoundCacheLifetime             : 5
KeepConn                              : 600
MaxCmds                               : 50
MaximumConnectionCountPerServer       : 32
OplocksDisabled                       : False
RequireSecuritySignature              : False
SessionTimeout                        : 60
UseOpportunisticLocking               : True
WindowSizeThreshold                   : 8

PS C:\windows\system32> Set-SmbClientConfiguration -EnableMultiChannel $false

Confirm
Are you sure you want to perform this action?
Performing operation 'Modify' on Target 'SMB Client Configuration'.
[Y] Yes  [A] Yes to All  [N] No  [L] No to All  [S] Suspend  [?] Help (default is "Y"): yes
PS C:\windows\system32> Get-SmbClientConfiguration


ConnectionCountPerRssNetworkInterface : 4
DirectoryCacheEntriesMax              : 16
DirectoryCacheEntrySizeMax            : 65536
DirectoryCacheLifetime                : 10
DormantFileLimit                      : 1023
EnableBandwidthThrottling             : True
EnableByteRangeLockingOnReadOnlyFiles : True
EnableInsecureGuestLogons             : False
EnableLargeMtu                        : True
EnableLoadBalanceScaleOut             : True
EnableMultiChannel                    : False
EnableSecuritySignature               : True
ExtendedSessionTimeout                : 1000
FileInfoCacheEntriesMax               : 64
FileInfoCacheLifetime                 : 10
FileNotFoundCacheEntriesMax           : 128
FileNotFoundCacheLifetime             : 5
KeepConn                              : 600
MaxCmds                               : 50
MaximumConnectionCountPerServer       : 32
OplocksDisabled                       : False
RequireSecuritySignature              : False
SessionTimeout                        : 60
UseOpportunisticLocking               : True
WindowSizeThreshold                   : 8

 

Affected Products

Dell EMC Unity Family

Products

Dell EMC Unity Family |Dell EMC Unity All Flash, Dell EMC Unity Family, Dell EMC Unity Hybrid
Article Properties
Article Number: 000050509
Article Type: Solution
Last Modified: 07 Oct 2025
Version:  4
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