vProxy 備份失敗並顯示錯誤： ddp_connect_with_config（） 失敗，主機名稱：DD_name，錯誤：5075-DDBOOST 錯誤1，表示在DD_Name上查找/backup/ost

ddp_connect_with_config() failed, Hostname: DD_name, Err: 5075-DDBOOST Error 1 for lookup /backup/ost on DD_Name (nfs: Operation not permitted)

初始檢查：

• DDBoost 正在 DD 上執行
• Data Domain 上已啟用 NFSv3
• DD 和 vProxy 之間的防火牆連接埠已開啟：NVP vProxy：備份和還原作業的網路連線故障診斷
• 使用的 DDBoost 密碼正確
• DDBoost 用戶端組態允許此特定用戶端：

• 1) Example:  
  
  Below example shows both "*" and a client name.  If "*" is missing then only clients in the list are permitted to connect to the DD.
  
  # ddboost clients show config
  Client               Encryption Strength   Authentication Mode
  ------------------- -------------------   -------------------
  *                    none                  none
  MyClient.mycomp.com  none                  none
  MyOtherClient        none                  none
  -------------------  -------------------   -------------------
  (**) The global security settings take precedence over these client(s) specific settings.
  
  2) Example from ddfs.info:
  07/03 14:59:25.659490 [7ff122a44170] WARNING: Client <MyOtherClient.mycomp.com> did not match access list entries
  07/03 14:59:25.659521 [7ff122a44170] nfsproc3_ost_mnt_3_svc: client access denied for <Client IP> version 7.0
  
  3) In some cases you will see that the error log lists the FQDN or the short name, but the client config is using the other form of the name. The configuration and the client name must match exactly. The DDBoost Plugin on the client will determine the name for the client. This will check the local hosts file on the client for a match for the source side IP for the client. If there is a match, it will use it. (Selecting the FQDN name if one is available, then short name) If there is no match, then the plugin will do a DNS query for the IP and use the response returned.
  
  4) If there is a discrepancy between the clients local host entry verses the DDBoost client config, ask the customer to choose which configuration that they would like to change.
  
  a) add "*" to the DD clients list will allow any client with proper credentials to authenticate to the DD.
  # ddboost clients add *
  
  b) add the corresponding name (from the error log, or client side local hosts file) to the DD:
  # ddboost clients add <hostname>
  
  c) modify the local hosts file or DNS for the IP address being used by the client to make it reflect the client name that was added to DD clients list.
  Example for Linux:
  file: /etc/hosts
  10.11.12.13 MyOtherClient.mycomp.com MyOtherClient
    changed to 
  10.11.12.13 MyOtherClient
  
  
  
  

如果以上皆已確認以上所有內容，請檢查用於 vProxy 的 MTREE 的 DDBoost 密碼長度。允許用於 vProxy 的最大密碼長度為 30 個字元。

如果密碼長度並不過長，建議使用「ddpconnchk」公用程式檢查 vProxy 和 DD 之間的連線能力。有關使用”ddpconnchk': NetWorker：如何使用 DDPCONNCHK 工具從 NetWorker 主機測試 DD ddboost 連線能力