备份应用程序已中止 NDMP 网络转储操作

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适用场景

ONTAP 9
网络数据管理协议（ NDMP ）
数据管理应用程序（ DMA ）
Commvault （ CV ）

问题描述

在与数据管理应用程序建立数据连接之后， DMA 就会中止网络数据管理协议操作。
在以下 NDMP 调试日志中， DMA 会尝试建立数据连接：

Mon Sep 27 2021 17:54:36 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 17:54:36 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent1]:8602 due to Connection timed out) Mon Sep 27 2021 17:55:51 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 17:55:51 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent2]:8602 due to Connection timed out) Mon Sep 27 2021 17:57:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 17:57:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent3]:8602 due to Connection timed out) Mon Sep 27 2021 17:58:21 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 17:58:21 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent1]:8602 due to Connection timed out) Mon Sep 27 2021 17:59:36 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 17:59:36 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent2]:8602 due to Connection timed out) Mon Sep 27 2021 18:00:51 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 18:00:51 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent3]:8602 due to Connection timed out) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: S<BKUP (ndmp_server) BR2NDMPD_DEBUG_LOG Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: LOG sev (3) msg (NDMP Connect: Unable to Connect to [MediaAgent1]:8602 due to Connection timed out)

建立数据连接需要 5 分钟以上的时间。

Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: NDMP Connect: Successfully connected to [MediaAgent2].8602, using local address [cluster_mgmt_IP].21613

然后， DMA 会中止此连接。

Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: DMA>>S V4 sequence=27 (0x1b) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: Time_stamp=0x6151eafe (Sep 27 18:02:06 2021) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: message type=0 (NDMP4_MESSAGE_REQUEST) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: message_code=0x902 (NDMP4_CONNECT_CLOSE) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: reply_sequence=0 (0x0) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: error_code=0 (NDMP4_NO_ERR) Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: service_terminate called Mon Sep 27 2021 18:02:06 +02:00 [kern_ndmpd:info:6040] [27026] DEBUG: received CLOSE command from [MediaAgent2].63379