NBU恢復Oracle通道完成後RMAN沒有進度

NBU9.0版本恢復Oracle19C

開4通道恢復完成首批備份集：

不自動切換備份集恢復，RMAN無進度1小時後報錯：

這套庫3T左右，恢復小庫200G的無任何問題。

NBU環境是華為雲，網路埠已按照NBU文件開通：

經過朋友官方查到資訊如下：

Below are tuning examples for several different platforms.  Please check your O/S vendor documentation for details on these or equivalent parameters.  The goals are three-fold:

1. Send TCP Keepalives more frequently and detect loss of the remote endpoint within 15 minutes.
2. Send TCP Keepalives successfully (within 15 minutes), before idle socket timeout (typically 60 or 30 minutes).
3. Make sure TCP Keepalives retry at least as robustly as TCP data retransmission to prevent spurious connection drop.  By default, Windows typically retransmits either 5 or 10 times and drops the connection within 10 to 150 seconds if no response.  By default, UNIX/Linux typically retransmits 10 to 20 times over 8 to 20 minutes.

連結地址：

服務端修改引數如下：

tcp_keepalive_time = 700

tcp_keepalive_intvl = 10

tcp_keepalive_probes = 20

最後一切恢復正常。

小記一下，好記性不如爛筆頭，嘿嘿！