Dell Unity：由于 CTA 服务器主机名无效，无法创建 DHSM 连接
Summary: 解决 Unity 分布式散列表安全管理器 （DHSM） 连接创建问题（错误代码：0x6720642） 是由无效的 Cloud Tiering Appliance （CTA） 服务器主机名字符（例如下划线）导致的），请确保有效的主机名格式以便成功创建 DHSM 连接。
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Symptoms
无法在 Unity 和 CTA 服务器之间创建 DHSM 连接。尝试从 CTA 服务器创建连接时，会出现此错误：
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 服务器的 URL（主机名）包含无效字符，例如下划线。
Resolution
将 CTA 的主机名更改为有效名称。在这种情况下，通过删除下划线获得了有效的名称。
示例：
示例：
Original hostname: cta01_abc.xxxxx.com Updated hostname: cta01abc.xxxxx.com请参阅“其他信息”部分，其中的日志指示此示例中的错误。
Additional Information
尝试从 Unity CLI 创建连接时，会出现以下错误：
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 日志显示以下条目：
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 日志显示以下条目：
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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