PowerProtect Data Manager：SQL 查找和备份失败并出现连接重置错误

PowerProtect Data Manager SQL 发现操作失败。发现可能在代理端成功完成，而在 PowerProtect Data Manager 端失败。PowerProtect Data Manager SQL 备份作业在 SQL 主机上完成数据移动，但拷贝发现失败，因为 PowerProtect Data Manager 无法与代理通信以检索结果。The /var/log/brs/adm/adm.log 显示发现正在启动，在连接重置后重试，以及在用尽所有 6 次重试后最终失败：

2026-04-06T10:34:21.874Z INFO [] [https-jsse-nio-9001-exec-8] [][][TASK_ID:86b325f2b71f420e][TRACE_ID:901942dfb919ee07;JOB_ID:ac8347392aec07a2][] [c.e.d.e.a.s.s.i.AgentDiscoveryService.startDiscovery(169)] -  Starting discovery with host IP=<my-host-ip> and isForceFull=true
2026-04-06T10:35:14.939Z ERROR [] [https-jsse-nio-9001-exec-8] [][][TASK_ID:86b325f2b71f420e][TRACE_ID:901942dfb919ee07;JOB_ID:ac8347392aec07a2][] [c.e.d.e.a.s.s.r.RetryableOperationExecutor.handleApiCallWithRetry(67)] -  Caught error while posting ADHOC_DISCOVERY request. Retrying request count 6. Exception is SocketException: Connection reset
2026-04-06T10:35:27.950Z ERROR [] [https-jsse-nio-9001-exec-8] [][][TASK_ID:86b325f2b71f420e][TRACE_ID:901942dfb919ee07;JOB_ID:ac8347392aec07a2][] [c.e.d.e.a.s.s.r.RetryableOperationExecutor.handleApiCallWithRetry(77)] -  Maximum of 6 retries exhausted while posting ADHOC_DISCOVERY request.2026-04-06T10:35:27.951Z ERROR [] [https-jsse-nio-9001-exec-8] [][][TASK_ID:86b325f2b71f420e][TRACE_ID:901942dfb919ee07;JOB_ID:ac8347392aec07a2][] [c.e.d.e.a.s.s.i.AgentDiscoveryService.getApiResponse(323)] -  Caught exception while making adhoc discovery call: class AdhocDiscoveryRestPayload {
    assetType: MSSQL_DATABASE
    discoveryType: [APPLICATION_SYSTEMS, ASSETS]
    taskId: f9eb4035-52b8-4fe7-a9da-01a66ba51d6e
} to host <my-host-ip> with error {}
com.emc.dpsg.ecdm.adm.schema.client.ApiException: java.net.SocketException: Connection reset
        at com.emc.dpsg.ecdm.adm.schema.client.ApiClient.execute(ApiClient.java:692)

位于以下位置的 Windows 代理 OpAgentSvc 日志 C:\Program Files\DPSAPPS\AgentService\logs\ shows 代理程序无法连接回 PowerProtect Data Manager 备份一体机，报告 Winsock 错误 10054（远程主机强制关闭连接）：

[2026-04-06 10:34:24,880 GMT| 2026-04-06 12:34:24,880593 South Africa Standard Time| DBGHTTPSERVER| PID-8096| TID-7412| ERROR] C:\Program Files\DPSAPPS\AgentService\tmp_MEI19522\Http\HTTP_wrap_context.pyc-wrap_socket()-Line 70- Exception [WinError 10054] An existing connection was forcibly closed by the remote host occurred

Files\DPSAPPS\AgentService\tmp_MEI110122\Http\HTTPServer.pyc-get_ppdm_id_from_ppdm()Line 5608 Error occurred while sending request to PowerProtect Data Manager for fetching ppdm_id: ('Connection aborted.', ConnectionResetError(10054, 'An existing connection was forcibly closed by the remote host', None, 10054, None))

这些错误表示双向通信故障 — PowerProtect Data Manager 无法访问代理，代理也无法联系 PowerProtect Data Manager。TCP 和 ICMP 连接可能被阻止。
代理端操作（SQL 附加组件发现、应用程序系统发现、资产发现、拷贝发现）可能会在主机上成功完成。当 PowerProtect Data Manager 尝试从代理检索结果时，会发生此故障。

这是环境问题，而不是软件缺陷。它可能发生在任何 PowerProtect Data Manager 版本上。

无法从 PowerProtect Data Manager 设备访问 SQL 代理程序主机，和/或无法从 SQL 代理程序主机访问 PowerProtect Data Manager 设备。网络配置可防止两个系统在所需端口上进行双向通信。

确保可从客户端（SQL 主机）访问端口 7000，可从服务器（PPDM 设备）访问 8443。