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SnapCenter SnapMirror 或 SnapVault 更新失败,显示"另一个传输已在进行中"

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适用于

  • SnapCenter Server (SC) 5.x 及更高版本
  • SnapCenter Plug-in for Microsoft SQL Server (SCSQL) 5.x 及更高版本
  • SnapCenter Plug-in for Exchange (SCE) 5.x 及更高版本

问题描述

  • 备份作业以警告结束,显示 SnapMirror 或 SnapVault 更新请求以以下消息结束:
    • ErrorCode (-1), ErrorMessage (Snapmirror update failed with SDError (102) - SnapMirror update operation failed.
      Failed to update the SnapMirror relationship. Another transfer is in progress.
    • SnapVault update failed for the relationship [<SOURCE_PATH> ==><DESTINATION_PATH>] with error: Snapmirror update failed with SDError (102) - SnapMirror update operation failed.
      Failed to update the SnapMirror relationship.
      The running command stopped because the preference variable "ErrorActionPreference" or common parameter is set to Stop: Another transfer is in progress.
  • SNAPMIRROR-AUDIT-LOG-TXT.GZ 在 ONTAP 上还表明 Another transfer is in progress.

ManualUpdate[<TIMESTAMP>]:<RELATIONSHIP_ID> Operation-Uuid=<UUID> Group=none Operation-Cookie=0 action=Start source=<SOURCE_PATH> destination=<DESTINATION_PATH>
ManualUpdate[<TIMESTAMP>]:<RELATIONSHIP_ID> Operation-Uuid=<UUID> Group=none Operation-Cookie=0 action=End source=<SOURCE_PATH> destination=<DESTINATION_PATH> status=Failure message=Another transfer is in progress.

发生原因

  • 在卷上创建快照的备份在之前的备份仍在更新 SnapMirror 或 SnapVault 关系时运行。
  • 使用默认设置,在 8 秒内尝试 8 次更新后,它将运行一个子作业,该子作业将尝试再运行 9 次更新,每次尝试之间暂停 1 分钟。如果之前的传输尚未完成,则备份将无法完成镜像或保管库更新,并且不会注册快照。
  • 目标已在 ONTAP 中设置了与备份时间冲突的更新计划,导致额外的更新。
  • 两个不同的备份,其中资源共享相同的卷,在不同的主机中重叠或同时运行。

解决方案

  • 对于与 Windows 插件主机相关的备份,需要在 Windows 插件主机上进行以下更改,而不是在 SC Server 主机上。
  • 如果使用 SC 5.x 及更高版本,请增加 SC 重试传输的总次数:
  1. 找到SMCoreServiceHost.exe.config file(SC 5.x)或SMCoreServiceHost.dll.config (SC 6.x 及更高版本),位于%Program Files%\NetApp\SnapCenter\SMCore
  2. 在文本编辑器中打开配置文件,然后转到文件末尾,就在 </AppSettings> 上面
  3. 插入以下  行:

<add key="SnapshotCheckRetry" value="300" />
<add key="SnapshotCheckTimeout" value="300000" />
<add key="SnapmirrorRetry" value="300" />
<add key="SnapmirrorTimeout" value="300000" />

  • 上述条目意味着 SC 每 5 分钟检查 300 次(300000 毫秒)。可以相应地调整值。
  • 确保插件主机或 SC 服务器上没有运行来自 SC 的操作(检查 SC UI 中的监视器)
  • 在 SC 插件主机上重新启动 SC SMCore 服务

注意

当 SC 应该处理镜像(特别是保管库)更新时,请勿在 ONTAP 端安排更新。
不要使用在两个或多个主机之间划分 LUN 且未映射到所有主机的相同卷(即非共享 LUN)。

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