Dell Unity：CAVA 服务器进入离线状态并间歇性恢复

Summary: CAVA 服务器间歇性地脱机并恢复：“病毒检查程序服务器 xx.xx.xx.xx 遇到错误，不再运行。（错误：ERROR_AUTH 64）“ ：：Category=User Component=DART_VC “病毒检查程序服务器 xx.xx.xx.xx 在线。”:: 类别=用户组件=DART_VC。

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Symptoms

该问题发生在 Unity 代码 4.4.0.1536311042 和 Windows Server 2016 上。

问题描述：

  1. 客户配置 CAVA 时，他们间歇性地收到以下错误，表明 CAVA 服务器离线并在几秒钟内重新联机。
    您会在EMCSystemLogFile.log中看到以下错误日志

    "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

    c4_safe_ktrace.log中也报告了相同的错误消息，例如：

    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. 该错误随机发生，没有特定的模式。CAVA 服务似乎不受影响。

  3. KB#462457 进行了跟进，但我们没有看到 CAVA 服务器/Unity/Windows DC 服务器之间存在时间偏差。

  4. 网络跟踪显示 CAVA 服务器发送FSCTL_VALIDATE_NEGOTIATE_INFO Ioctl 请求，但 Unity 未响应并断开了 TCP 连接。
    出现问题时，CAVA 服务器发送了FSCTL_VALIDATE_NEGOTIATE_INFO Ioctl 请求，但 Unity 未响应并完成连接。

    # 好的案例示例

    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

    # 坏案例示例

    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. 此问题会影响 CIFS 数据复制，就像使用 emcopy 尝试将数据从 VNX 迁移到 Unity 一样。
    它们同时运行多个拷贝，而每次间歇性地不同的拷贝都会因错误而失败。

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

 

Cause

这是一个问题，因为 Unity 必须使用初始连接而不是绑定连接验证信息。这确实会导致客户问题。

 

Resolution

这是只有 SMB 版本 3.0.2 的问题，即使他们切换到 3.1 或 2.1 也能正常工作。即使在 3.0.2 中，他们也有解决方法。

解决办法：在 Windows 服务器或 CAVA 服务器上部署多渠道

以管理员身份运行 PowerShell，然后：

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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