Data Domain：DDOS 7.x 升級後，無法存取 Enterprise System Manager UI
Summary: 在升級至 DDOS 7.x 後，無法存取 Data Domain Enterprise Manager (DDEM) / 系統管理圖形使用者介面 (GUI)
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Symptoms
在升級至 DDOS 7.x 後，無法存取 Data Domain Enterprise Manager (DDEM) / 系統管理圖形使用者介面 (GUI)。 系統會報告 DDSM 服務無法使用。
檔案中會回報下列錯誤 em.info
檔案中會回報下列錯誤 em.info
#log view debug/sm/em.info 12 Apr 2021 20:21:40,536 INFO [main] SMS is running in secure (HTTPS) mode. 12 Apr 2021 20:21:40,817 INFO [main] *** Creating mutual auth connection manager, max connections: 45, max connections per host: 2 12 Apr 2021 20:21:40,839 INFO [main] *** Creating no mutual auth connection manager, max connections: 1, max connections per host: 1 12 Apr 2021 20:21:40,839 INFO [main] *** Creating Http Client with connectTimeout: 30000, socketTimeout: 120000, connectionManagerTimeout: 30000 12 Apr 2021 20:21:40,916 INFO [main] *** Creating Http Client with connectTimeout: 30000, socketTimeout: 120000, connectionManagerTimeout: 30000 12 Apr 2021 20:21:41,217 INFO [main] Re-initializing the certificates between the client and the server 12 Apr 2021 20:21:41,217 INFO [main] Reloading the certificate stores for the system 12 Apr 2021 20:21:41,228 INFO [main] Finished reloading the certificate stores 12 Apr 2021 20:21:41,229 ERROR [main] Exception during command execution: javax.net.ssl.SSLException - Error creating premaster secret. , will retry, Attempt# 1 12 Apr 2021 20:21:41,380 INFO [main] Re-initializing the certificates between the client and the server 12 Apr 2021 20:21:41,381 INFO [main] Reloading the certificate stores for the system 12 Apr 2021 20:21:41,397 INFO [main] Finished reloading the certificate stores
Cause
自 DDOS 6.0 起，GUI 預設使用的憑證金鑰長度為 2048。而在 DDOS 5.x 版本中，金鑰強度為 1024 位元。金鑰長度增加到 2048。
DDOS 7.x 會強制使用此金鑰強度，以強化安全性功能
DDOS 7.x 會強制使用此金鑰強度，以強化安全性功能
Resolution
針對使用預設自我簽署憑證的系統
步驟 1：
- 如果您已檢查「em.info」，確定我們已在此 KB 中遇到問題，請依照本 KB 中的步驟重新產生新的 CA 憑證：
- Data Domain：Web UI 因 https 憑證過期而無法存取
步驟 1：
- 以「sysadmin」或同等使用者身分，透過 CLI 登入 DD 然後進入「SE 權限模式」
注意：DDOS 版本 7.7.5.25、7.10.1.15、7.13.0.15、6.2.1.110 及更新版本中已淘汰 SE 命令，僅供 Dell 員工存取
- 刪除目前使用的憑證
# adminaccess certificate delete imported-host application https
- 現在，請依照本 KB 中的步驟產生新的自我簽署 CA 憑證
- Data Domain：Web UI 因 https 憑證過期而無法存取
- 若要匯入新的外部簽署憑證，請使用此 KB：
- Data Domain：如何產生憑證簽署要求和使用外部簽署憑證
Affected Products
Data DomainArticle Properties
Article Number: 000185217
Article Type: Solution
Last Modified: 04 Sept 2025
Version: 9
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