Avamar:備份至 Data Domain 失敗,並出現 DDR 連線錯誤
Summary: 知識文章 (KB),提供故障診斷 Data Domain 的 Avamar 備份失敗步驟。
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Symptoms
Avamar 備份失敗或完成,並出現 DDR 例外錯誤。常見的記錄項目包括:
DDRInstance::Connect: Unable to connect to DDR: dell.ddr.com
ddp_connect_with_config() failed, Hostname: hostanme.com, Err: 5037-Cannot resolve IP address from Host failover.hostname.com
ddp_access() failed, Path ..., Err: 5004-nfs lookup failed (nfs: No such file or directory)
avtar Warning: API in exception state, rejecting API call DDR_DISCONNECT
Shutdown DDR communications manager, failed to close DDR handle, DDR result code: 4903
avtar Warning <10558>: shutdown DDR communications manager, failed to shutdown, DDR result code: 4903, desc: API call rejected.
其他錯誤也可能參考以下內容:
DDR_OPEN_MSTREAM
Unhandled API exception
Failed to create stream for fileCause
根本原因通常與 Avamar 用戶端和 Data Domain 系統之間的連線問題有關。這可能涉及網域命名系統 (DNS) 解析失敗、網路組態問題或 DD Boost 通訊錯誤。
Resolution
-
查驗 DD Boost 連線能力
- 執行
ddpconnchk公用程式,以測試與 Data Domain 系統的連線能力。- 請參閱 Dell KB:Data Domain:DDPCONNCHK 如何故障診斷 Data Domain DD 提升連線能力和效能。(可能需要客戶登入)
- 執行
-
檢查 DNS 和網路組態
- 請確定用戶端可以解析 Data Domain 主機名稱,並透過網路連線。
- 確認防火牆規則允許 DD Boost 流量。
-
審閱 Data Domain 設定
- 確認 Data Domain 系統已連線,並已設定可存取 DD Boost。
-
視需要向上呈報
- 如果問題仍然存在,請聯絡 Dell 支援以進行進階故障診斷。
Affected Products
Avamar, Data Domain, Avamar Client for WindowsProducts
Avamar, Avamar Plug-in for SharePoint VSSArticle Properties
Article Number: 000033672
Article Type: Solution
Last Modified: 30 Dec 2025
Version: 6
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