Dell Unity：由於 CTA 伺服器主機名稱無效，無法建立 DHSM 連線
Summary: 解決 Unity 分散式雜湊表格 Secure Manager （DHSM） 連線建立問題 （錯誤代碼：0x6720642） 是由無效的雲端分層裝置 （CTA） 伺服器主機名稱字元 （例如底線） 所致，並確保主機名稱格式有效，才能成功建立 DHSM 連線。
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Symptoms
無法在 Unity 和 CTA 伺服器之間建立 DHSM 連線。嘗試從 CTA 伺服器建立連線時，會出現此錯誤：
ACD authentication: Failed. No matching connection was found for the secondary target. The connection will be created automatically after the first archiver run involving this primary and secondary. If you want to verify the authentication credentials you must create a secondary connection for the primary on the control station.
Cause
CTA 伺服器的 URL （主機名稱） 包含無效字元，例如底線。
Resolution
將 CTA 的主機名稱變更為有效的名稱。在這種情況下，通過刪除下劃線來訪問有效名稱。
範例：
範例：
Original hostname: cta01_abc.xxxxx.com Updated hostname: cta01abc.xxxxx.com請參閱其他資訊一節，記錄指出此範例中的錯誤。
Additional Information
嘗試從 Unity CLI 建立連線時，會出現此錯誤：
uemcli -u admin -p xxxxxxxx /net/nas/dhsmconn create -fs fs_2 -secondaryUrl http://cta01_abc.xxxxx.com/fmroot -secondaryUsername dhsm -secondaryPassword yyyyyyyy -secondaryPort 9000 Storage system address: 127.0.0.1 Storage system port: 443 HTTPS connection Operation failed. Error code: 0x6720642 A create operation for a DHSM connection failed. (Error Code:0x6720642) Job ID = N-7067Unity SP 記錄會顯示這些項目：
B 02/01/19 17:50:10.992 MnsvcServer 7d8 [INFO] Authentication: Authentication session Session_103_1543000313: User admin successfully authenticated in authority LocalDirectory/Local B 02/01/19 17:50:10.993 MnsvcServer 7da [INFO] Authentication: Authentication session Session_103_1543000313 succeeded: Principal User admin LocalDirectory/Local B 02/01/19 17:50:10.994 CASAuth 560001 [INFO] Audit: Authentication successful.Username: admin ClientIP: 10.xx.xx.xx. B 02/01/19 17:50:12.864 mlu 16f8500 [INFO] System: Request to create DHSM connection 0x2800000007 completed successfully. A 02/01/19 17:50:12.875 mlu 12d0006 [INFO] System: CBFS_CREATE_DHSM_CNX request FAILED on 4000000001 completed with status 0x2.. A 02/01/19 17:50:12.885 mlu 16f8502 [ERROR] System: Failed to create a DHSM connection to http://cta01_abc.xxxxx.com/fmroot on file system 0x2800000007 of NAS server 0x1800000003. B 02/01/19 17:50:13.349 mlu 16f8501 [INFO] System: Request to destroy DHSM connection 0x4000000040 completed successfully. A 02/01/19 17:50:36.320 mlu 16f0020 [INFO] System: Request received to modify CIFS server modify VDM CIFS service status from UAPI. A 02/01/19 17:50:36.329 mlu 16f0021 [INFO] System: Request to modify CIFS server 0x1C00000002 completed successfully.Unity ktrace 記錄會顯示這些項目：
A 02/04/19 20:07:10.181 sade f069d705 c4_safe_ktrace CBFS: 6:[POC-CIFS] ready_start: 'connect fsid=536870922 type=HTTP rpolicy=2 http=http://cta01_abc.xxxxx.com/fmroot httpPort=90
A 02/04/19 20:07:10.181 sade f069d705 c4_safe_ktrace CBFS: 6:[POC-CIFS] 00 account='dhsm' passwd=******************** cgi=n timeout=30'
A 02/04/19 20:07:10.183 sade f069d706 c4_safe_ktrace DHSM: 3:[POC-CIFS] HTTP: Invalid character "_" in hostname "cta01_abc.xxxxx.com"
A 02/04/19 20:07:10.183 ade f069d706 c4_safe_ktrace DHSM: 3:[POC-CIFS] The host name in the secondary url cta01_abc.xxxxx.com is either missing formatted incorrectly.Affected Products
Dell EMC Unity FamilyProducts
Dell EMC Unity FamilyArticle Properties
Article Number: 000057266
Article Type: Solution
Last Modified: 20 Oct 2025
Version: 4
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